Saturday, July 27, 2013

1995,1996,1997,1998,1999,2000 Plymouth Breeze, Dodge Stratus, Chrysler Cirrus, engine will not rotate, turn over when trying to start.

1995,1996,1997,1998,1999,2000 Plymouth Breeze, Dodge Stratus, Chrysler Cirrus, engine will not rotate, turn over when trying to start. Here a quick few diagnostic tips for the 1995 through 2000 Chrysler Cirrus, Dodge Stratus, Plymouth breeze. These diagnostic procedures are directed at helping you find the reason your engine will not rotate or turn over when attempting to start. These are some basic and simple diagnostic procedures that should help you figure out your issue.


1. Battery terminal connections are loose or corroded

2. Battery discharged or faulty

3. Automatic transaxle not completely engaged in park or clutch pedal not completely depressed

4. Broken, loose or disconnected wiring in the starting circuit

5. Starter motor pinion jammed in flywheel ring gear

6. Starter solenoid faulty

7. Starter motor faulty

8. Ignition switch faulty    General info

9. Starter pinion or flywheel teeth worn or broken

10. Defective fusible link

1995,1996,1997,1998,1999,2000 Plymouth Breeze, Dodge Stratus, Chrysler Cirrus, engine will not rotate, turn over when trying to start.

1995,1996,1997,1998,1999,2000 Plymouth Breeze, Dodge Stratus, Chrysler Cirrus faulty fusible link

fusible link. Fusible links are used in circuits which are not ordinarily refused, such as a starting or ignition circuits.

Although the fusible links appear to be a heavier gauged in the wires there protecting, the appearance is due to the thick insulation. All fusible links are for wire gauge is smaller than the wire there designed to protect. Fusible links cannot be repaired, but a new link of the same amperage rating can be installed the procedure is as follows

Disconnect the negative cable from the remote battery terminal. Disconnect the fusible link from the component at the eyelid terminal connection. Cut the damage fusible link out of the wiring just behind the current connector. Stripped insulation back approximately 1 inch spread the strands of the exposed wire apart, pushed them together and twist them in place. If available, this connection may be made using another crimp type connector. Use rosin core type solder and solder the wires together it to obtain a good connection. Use plenty of electrical tape around the solder joint. No wires should be exposed. Connect the fusible link eyelid terminal to the component and tighten the screws securely connect the negative cable to the remote battery terminal. Test the circuit for proper operation

Some basic diagnostic procedures

1995,1996,1997,1998,1999,2000 Plymouth Breeze, Dodge Stratus, Chrysler Cirrus ignition failure

Ignition system check

With the position switch turn to the on position, a glowing instrument panel battery light or oil pressure light is a basic check for battery voltage supply to the ignition system and PCM

First check all ignition wiring connections for tightness, cuts, corrosion or any other signs of a bad connection.

Check the condition of the spark plug wires. Using an ohmmeter measure the resistance of each spark plug wire and comparable and the measure value to the resistance value listed in the specifications. A bad spark plug wire or poor connection at the spark plug or coil or distributor Could also result in a misfire.

On V-6 engines, remove the distributor cap and rotor. Inspect the And rotor for moisture, cracks, erosion, carbon tracks worn rotor button or other damage. Remove one spark plug wire at a time from the So they don't get mixed up and check the terminals inside the For corrosion, which will appear as a white crusty powder, slight corrosion can be removed with a screwdriver or around wire brush. On the distributor, use an ohmmeter to measure resistance between the rotor button in the coil terminal. The resistance should be approximately 5000 ohms. On the distributor, inspect the quarrel high tension tower for cracks, carbon tracks or corrosion. If the coil is found to be defective, the entire distributor must be replaced. If the Or rotor is defective and the ignition components including spark plugs have been in service for more than 60,000 miles, the manufacturer recommends replacing all ignition components at the same time.

If the engine turns over but won't start, disconnected number one spark plug wire on four-cylinder engines or the number two spark plug wire on V-6 engines and install a calibrated ignition tester available at most auto parts stores. Make sure the testers designed for Chrysler electronic ignition systems if the universal tester is not available.

Connect the clip of the tester to a bolt or metal bracket located on the engine. If an ignition tester is not available, a good spark plug with the gap set to the maximum tolerance can also be used. Ground the threaded portion of the spark plug to the engine. Crank the engine while observing the ignition tester-if bright blue, while defined sparks occur, sufficient voltage is reason spark plug the fire, caution: if the engine starts, do not run the engine for longer than one minute during this test-the role fuel escaping from the cylinder being tested may cause damage to the catalytic converter.

On four-cylinder engines, perform this check at the number two spark plug location also. This will check the other ignition coil inside the coil pack. Note- it is not necessary to perform this check at another location on V-6 engines because that system uses a single coil.

The spark is present, the coil is firing, however, the spark plug themselves may be filed or damaged, so removing check them or install new ones.

If no spark or intermittent sparks occur, disconnect the coil electrical connector and connect a test light to the center terminal of the coil electrical connector and one of the outer terminals on four-cylinder engines or across both harness terminals on V-6 engines

With the test light placed where you can see it from the driver's seat, crank the engine and watched the test light, issued flash on and off while the engine is cranking up the test light does not blink checked the wiring harness for damage or short. If the wiring is okay, checked operation of the automatic shutdown also known as the ASD relay. If necessary, check the operation of the camshaft and crankshaft position sensors. If the ASD relay and cam/crank sensors check out okay have the PCM diagnosed by a dealer service department or other qualified repair shop.

If voltage is present meaning the light blue is blinking, check the ignition coil and replace it if necessary.

If these checks do not identify the problem, further diagnosis should be made by a qualified dealer service department or other qualified repair shop

More Diagnostic procedures

1995,1996,1997,1998,1999,2000 Plymouth Breeze, Dodge Stratus, Chrysler Cirrus general ignition iformation

All models are equipped with electronic ignition system. The ignition system consist of the ignition switch, the battery, the coil, the primary and the secondary wiring circuits, ignition wires and spark plugs, the camshaft position sensor, the crankshaft position sensor and the powertrain control module or PCM. The PCM controls ignition timing and spark advance characteristics for the engine. The ignition timing is not adjustable.

The crankshaft sensor and camshaft sensor generate voltage pulses that are sent to the PCM. The PCM then determines the crankshaft position, injector sequence and ignition timing. The PCM also supplies battery voltage to the ignition coil through the automatic shutdown relay also known as the ASD. The PCM also controls the ground circuit for the coil.

If the PCM does not receive a signal from the crankshaft or camshaft position sensors, the PCM signals the ASD relay and fuel pump relay to shut down the ignition and fuel delivery systems respectively.

On four-cylinder engines, the secondary ignition system is controlled by energizing the core drivers in the proper firing order. On V-6 engines, a conventional type distributor with the rotor is used to send ignition voltage to the proper cylinder in the firing order. On V-6 engines, the ignition coil and camshaft position sensor are part of the distributor, which is located on the rear of the engine on the right side cylinder head and driven by the camshaft.

More diagnostic procedures

1995,1996,1997,1998,1999,2000 Plymouth Breeze, Dodge Stratus, Chrysler Cirrus starter motor check

Starter motor-in-vehicle check:

Make sure the battery is fully charged and all cables/connections-at the battery, starter solenoid terminals and remote terminals-are clean and secure.

If the starter motor does not function at all when the switch is operated, make sure the shift lever is a neutral or Park. And checked operation of the park/neutral switch. On vehicles equipped with manual transaxle's, check the operation of the clutch start switch.

At the starter motor spends with the engine is not cranking. The overrunning clutch in the starter motor is slipping and the starter motor must be replaced. Also, the ring gear on the drive plate may be worn. Inspected after removing the starter.

If, when the switches actuated, the starter motor does not operate at all but the solenoid clicks, the problem lies with either the battery, the main solenoid contacts or the starter motor is self.

If the solenoid plunger cannot be heard when the switches actuated, the battery may be faulty, the fusible link may be burned, or the starter relay may be faulty or the solenoid itself is defective.

Check the solenoid, connect the remote starter switch between the positive remote battery terminal and the ignition switch wire terminal on the solenoid. If the starter motor operates when the remote switch is activated, the solenoid is okay and the problem is elsewhere in the circuit.

Locate the starter relay in the power distribution center(PDC), Remove the relay and perform the identical test as for the automatic shutdown relay (ASD) and the fuel pump relay. Replace the relay if it is not function as described.

The starter motor still does not operate, remove the starter/solenoid assembly for replacement as a complete unit.

If the starter motor cranks the engine at an abnormally slow speed, first make sure that the battery is fully charged and that all electrical connections are clean and tight. If the engine is partially seized, or has the wrong the Scots of the oil and it, it will crank slowly.

If the engine starts, run the engine until normal operating temperature is achieved, then turn off the engine. Remove the fuel pump relay to keep the engine from starting.

Connect the voltmeter positive lead to the positive remote battery terminal and the negative lead to the negative remote battery terminal.

Crank the engine intake the voltmeter reading as soon as a steady figure is indicated. Do not allow the starter motor to return for more than 15 seconds at a time. A reading of 9 V or more, with the starter motor turning it normal cranking speed, is normal. If the reading is 9 V or more but the cranking speed is slow, the motor, solenoid contacts or circuit connections are faulty. If the reading is less than 9 V and the cranking speed is slow, the starter motor is probably bad.

1995,1996,1997,1998,1999,2000 Plymouth Breeze, Dodge Stratus, Chrysler Cirrus battery and cable check, maintenenance

Battery cables-check and replacement:

Periodically inspect the entire length of each battery cable for damage, cracked or burned insulation and corrosion. Poor battery cable connection cause starting problems and decreased engine performance.

Check the cable terminal connections at the ends of the cables for cracks, loose wire strands and corrosion. The presence of white, fluffy deposits under the insulation at the cable terminal connection at the battery is a sign that the cable is corroded and should be replaced. Check the terminals for distortion, missing mounting bolts and corrosion.

When removing the cables, always disconnected never negative cables first and hook it up last or the battery may be shorted by the tool used to loosen the cables. Even if only the positive cable is being replaced, be sure to disconnect the negative cable from the ground terminal on the left shock tower first.

Disconnect the old cables from the battery, then trace each of them to the remote terminals and detach them. Note the routing of each cable to ensure correct installation.

Check the cables that connect the starter solenoid and ground terminals to the remote terminals. If they require replacement, note the routing of each cable to ensure correct installation and then detach them.

If you are replacing a cable, take it along with you when purchasing a new one. It is vitally important that you replace it with an identical part. Cables have characteristics that make them easy to identify: positive cables are usually red and large and cross-section, ground cables are usually black and smaller and cross-section.

Clean all connections with the wire brush to remove rust oxidation and corrosion. Apply a light coat of petroleum jelly or greased wall fastener threads to prevent future corrosion.

Before connecting a new cable to the battery, make sure that reaches the battery without having to be stretched. Connect the positive cable first followed by the negative cable.

More diagnostic procedures

1995,1996,1997,1998,1999,2000 Plymouth Breeze, Dodge Stratus, Chrysler Cirrus transaxle diagnostics and repair

Diagnose transaxle malfunctions follow these simple steps to help guide you through to help you guide you through procedures.

Automatic transaxle malfunctions may be caused by five general conditions

Poor engine performance.

Improper adjustments.

Hydraulic malfunctions.

Mechanical malfunctions.

Malfunctions in the computer auric signal network.

Diagnosis of these problems should always begin with the check of the easily repaired items. First, check the fluid level and condition, shift cable adjustment, and shift lever installation. Next, perform a road test to determine the problem has been corrected or if more diagnosis is necessary. If the problem persist after the coronary tests and corrections are completed additional diagnosis should be formed by dealer service department or other qualified transmission repair shop.

Preliminary Checks

Dry the vehicle to warm the transaxle to normal operating temperatures.

If the fluid level is unusually low, and the fluid ring level within the designated area of the dipstick, and check for external leaks.

If the fluid level is abnormally high, drain off the excess, then check the drain fluid for contamination by coolant. The presence of engine: an automatic transmission fluid in the case of a failure has occurred in the internal radiator oil cooler walls that separate the coolant from the transmission fluid.

If the fluid is foaming, drain it and refill the transaxle, and check for: fluid, or a high fluid level.

Checked the engine idle speed. If the engine is malfunctioning do not proceed with the plenary checks until it has been repaired and runs normally.

Check and adjust the shift cable if necessary.

If art shifting is experienced, inspect the shift cable under the center console and at the manual lever on the transaxle.

Fluid leak diagnosis:

Most fluid leaks are easy to locate visually. Repair usually consists of replacing a seal or gasket. If the leak is difficult to find, the following procedure may help.

Identify the fluid. Make sure his transmission fluid and not engine oil or brake fluid that is leaking.

Try to pinpoint the source of the leak. Drive the vehicle several miles, then park it over large sheet of cardboard. After after a minute or two, you should be able locate the leak by determining the source of the fluid dripping onto the cardboard. Automatic transmission fluid is a deep red color.

Make a careful visual inspection of the suspected component and the area immediately around. Pay particular attention to gasket mating surfaces. A mirror is often helpful for finding leaks in areas that are hard to see.

It's leak still cannot be found, clean the suspected area thoroughly with a degreaser or solvent, then dry it thoroughly.

Dry the vehicle for several miles at normal operating temperature and varying speeds. After driving the vehicle, visually inspect the suspect the component again.

Once leak has been located, the cause must be determined before it can be properly repaired. If the gasket is replaced with the sealing flange is bent, the new gasket will not stop the leak. The bit flange must be straightened.

Before attempting to repair a leak, check to make sure that the following conditions are corrected or they may cause another leak. Some of the following conditions cannot be fixed without highly specialized tools and expertise. Such problems must be referred to a qualified transmission shop or dealer service department.

Gasket leaks:

Check the pan periodically. Make sure the bolts are tight, no bolts are everywhere are missing, the gasket is in good condition and the pan is flat. Denson the pan may indicate damage to the valve body inside.

If the pan gasket is leaking, the fluid level or the fluid pressure may be too high, the event may be plugged, the pan bolts may be too tight, the pan sealing flange may be warped, the sealing surface of the transaxle housing may be damaged, the gasket may be damaged or the transaxle casting may be cracked or porous. If sealant instead of gasket material has been used to form a seal between the pan and the transaxle housing, it may be the wrong type of sealant,

Seal leaks:

If the transaxle seal is leaking, the fluid level or pressure may be too high, the event may be plugged, the seal bore may be damaged, the seal itself may be damaged or improperly installed, the surface of the shaft protruding through the seal may be damaged, or a loose bearing may cause excessive shaft movement.

Make sure the dipstick tube seal is in good condition and the tube is properly seated. Periodically check the area around the sensors for leakage. If transmission fluid is evident, checked the seals for damage

Case leaks:

If the cases self peers to be leaking, the casting is porous and will have to be repaired or replaced.

Make sure that will cooler hose fittings are tight and in good condition.

Fluid comes out of vampire or fill tube:

If this condition occurs the possible causes are, the transactional is overfilled, there is coolant in the fluid, the case is porous, the dipstick is incorrect, the vent is plugged or the drain back holes are plugged.

1995,1996,1997,1998,1999,2000 Plymouth Breeze, Dodge Stratus, Chrysler Cirrus battery charging and diagnostics


Always remember that your battery produces hydrogen gas, which is highly explosive. Never create a spark, smoke or light a match around the car battery. Always charge a car battery in a ventilated area.

The battery in most vehicles is located inside the wheel well of the left front fender

Remove the battery from the vehicle.

On maintenance type batteries remove the cell caps. Make sure the electrolyte level is okay before bidding beginning to charge the battery. Cover the holes with a clean cloth to prevent spattering electrolyte.

On batteries with the terminals located on the side install bolts in the terminal solar charger can be attached.

Connect the battery charger leads to the battery post then plug in the charger. Make sure to set at 12 V if it has a selector switch. If the battery charges not have a built-in timer, it's a good idea to use one in case you forget-you won't overcharge the battery.

If you're using the charter with a rate higher than 2 A, check the battery regularly during charging to make sure it doesn't overheat. If you're using a trickle charger, you can safely let the battery charger overnight after you checked it regularly for the first couple of hours

It's battery has removable cell caps measure the specific gravity with the hydrometer every hour during the last few hours of the charging cycle. Hydrometer's are available inexpressibly from the your local auto parts store. Follow the instructions it come with the hydrometer. Consider the battery charge when there's no change in the specific gravity reading for two hours in the electrolyte in the cells is outgassing freely. The specific gravity reading from each cell should be very close to the others if not, the battery probably has a bad cell or cells.

Most batteries with seal tops have built-in hydrometer's on top that indicate the state of charge by the color displayed in the hydrometer window. Normally, a bright colored hydrometer indicates a full charge and a drawer dark hydrometer indicates the battery still needs charging. Check the battery manufacturers instructions to be sure you know what the colors mean.

If the battery is assailed top and does not have a built-in hydrometer you can look up a voltmeter across the battery terminals to check the charge a fully charged battery should read approximately 12.6 V or higher.

More diagnostic procedures

1995,1996,1997,1998,1999,2000 Plymouth Breeze, Dodge Stratus, Chrysler Cirrus battery check and maintenance

1. Tools and materials required for battery maintenance:

Face shield/safety goggles: when removing corrosion with the brush, the acid it particles can easily fly up into your eyes

Baking soda: a solution of baking soda and water can be used to neutralize corrosion

Petroleum jelly: a layer of this on the battery post will help prevent corrosion

Battery post/cable cleaner: this wire brush cleaning tool remove all traces corrosion from the battery posts and cable clamps

This section applies the side mount batteries only

Treated felt washers: placing one of these on each post directly under the cable clamps will help prevent corrosion

Puller: sometimes a cable clamps are very difficult to pull off the posts, even after the nut/bolt has been completely loosened. This tool pulls a clam straight up and off the post without damage

Battery post/cable cleaner for sidemount: here's another cleaning tool which is slightly different version but it does the same thing

Rubber gloves: another safety on the consider was sent when servicing the battery remember that's acid inside the battery

Servicing and maintenance: a routine preventive maintenance program for the battery in your vehicle is only way to ensure quick and reliable starts. But before performing any battery maintenance, make sure that you have the proper equipment necessary to work around the battery

Before servicing the battery always turn the engine and all accessories often disconnect the cable from the negative terminal

The battery on these vehicles is usually located inside the wheel well on the left front fender

Remove the battery from the vehicle

Inspect the external condition of the battery, and check the battery case for cracks or other damage

Inspect the external condition of the battery checked the battery case for cracks or other damage paragraph clean the battery terminals and cable connections thoroughly with a wire brush or terminal cleaner in the solution of warm water and baking soda wash the terminals and the top of the battery case with the same solution but make sure that the solution doesn't get into the battery. When cleaning the cables, terminals and battery top, wear safety goggles and rubber gloves prevent any solution from coming into contact with your eyes or hands. Where old close to-even diluted, sulfuric acid splashes on the close and will burn holes in them. Thoroughly wash all cleaned areas with plain water

Inspect the battery carrier. If his dirty or covered with corrosion, clean it with the same solution of warm water and baking soda and rinse it with clean water

If the battery is a maintenance type, it has removable cell caps which allow you add water to the battery when the electrolyte level gets low use distilled water only

If you are not sure what type of battery you have, one simple way to confirm your type of battery is to look for a built-in hydrometer. Most maintenance free batteries have built-in hydrometer's indicate the stay of the charter by the color displayed in the hydrometer window since measuring the specific gravity of the electrolyte is not possible. Also check for cutouts near the cell's-if the caps can be removed, cutouts are usually provided to assist with prying off the caps.

If your battery is a maintenance type remove the cell's and check the level of the electrolyte. If the level is low, add distilled water, (distilled water is mineral free, tap water contains minerals that will shorten the life of your battery), to bring the electrolyte up to the proper level
next check the entire length of each battery cable for cracks, worn insulation and freight conductors replace the cable and/or cables if necessary,

And re-install the battery

Thursday, July 25, 2013

Mini Cooper S 1.6L, L4, MFI, SOHC, Eng Desg W11B16A power steering does not work

2002 Mini Cooper S 1.6L, L4, MFI, SOHC, Eng Desg W11B16A
MILEAGE:   155,473


Customer Concern:  The power steering is inoperative.


Tests:    1. At the 2-pin connector on the Electro-Hydraulic Power Steering pump unit (EHPS), check that the Red wire has constant battery voltage from fuse FL4 and that the Brown wire is a good ground.

2. At the 3-pin connector on the EHPS, the Green/White wire should have ignition-on battery voltage from fuse F39, and the Yellow wire should have battery voltage from the D+ circuit on the alternator with the engine running. The third wire, Violet/White, is the diagnostic wire from the EHPS to the car's diagnostic connector.

3. If the three power inputs and the ground are good, and the pump does not operate, it is bad and has to be replaced.


Potential Causes:   Electro-Hydraulic Power Steering Pump (EHPS)
Wiring
 
Confirmed Fix:  Replaced Electro-Hydraulic Power Steering (EHPS) Pump
 


Tech Tips:  1. Make sure that the cooling fan for the EHPS, mounted under the pump, comes on when the radiator cooling fan does. Overheating can damage the EHPS.

2. The EHPS is a self-contained unit with its own control module that works automatically on demand as the steering wheel is turned.

3. On early production cars, up to 12/2002, there is a wiring update for the EHPS cooling fan, found under Technical Service Bulletin (TSB) # M32 03 04, that isolates the power supply of the EHPS cooling fan from that of the radiator cooling fan.


Kia Sedona EX 3.5L, V6, MFI, DOHC, VIN 1 code P0320

2003 Kia Sedona EX 3.5L, V6, MFI, DOHC, VIN 1
MILEAGE:   80,000


Customer Concern:  The check engine light is on with an ignition failure sensor code of P0320 and the tachometer is not working.


Tests:    1. With the engine running, check for battery voltage to the ignition failure sensor on the Pink wire, less than 0.05 volts on the Black wire, and battery voltage from the ignition failure sensor on the Black/White wire.

2. With the engine running, scope the signal on the Yellow/Red wire from the ignition failure sensor. The signal will increase in frequency as the engine RPM is increased.

3. Verify that the connection at the ignition failure sensor is clean and tight.


Potential Causes:   Ignition Failure Sensor
Ignition Failure Sensor Wiring

Confirmed Fix:  Replaced Ignition Failure Sensor



Chevrolet Uplander Base 3.9L, V6, MFI, OHV, VIN W, Eng Desg LGD will not start

Chevrolet Uplander Base 3.9L, V6, MFI, OHV, VIN W, Eng Desg LGD
MILEAGE:   200,000


Customer Concern:  The engine will not start and it bucks the starter while cranking. There is no spark from the 1-4 coil but it has good spark from the other coils. Tried a new coil but that did not help.


Tests:    1. Ground the secondary coil terminals and disable the fuel injectors. This will stop the engine from bucking the starter and prevent the cylinders from flooding with fuel.

2. Scope check the pattern on the IC 1 signal at the coils Purple wire, pin B while operating the starter.

3. Compare to the IC 2 signal, Orange/White wire pin A. It should be the same.

4. Inspect for a poor ground at the Electronic Control Module (ECM), ground G113, at the engine to the transmission stud above G115.

5. Check ECM grounds to be less than 50 mv.

6. Check the Crankshaft Position (CKP) sensor signal for a glitch in the pattern.

7. Check under the CKP sensor for rust at the engine block and clean to bare metal so the sensor mounts flush.


Potential Causes:  Failed Crankshaft Position (CKP) Sensor Signal
Failed Electronic Control Module (ECM) Ground
Failed Electronic Control Module (ECM)
 
Confirmed Fix:  Cleaned Crankshaft Position (CKP) Sensor Mounting Surface



Jaguar S-Type Base 4.0L, V8, MFI, DOHC, VIN G heaters do not work


VEHICLE:   2001 Jaguar S-Type Base 4.0L, V8, MFI, DOHC, VIN G
MILEAGE:   125,109


Customer Concern:  There is no heat from either side of the heaters. Have already located the control valve and it has 2 solenoids. What is the voltage that the heater sends to those solenoids?


Tests:    1. The dual control valve has varying voltage input to it from the Air Conditioning Control Module (ACCM) depending on the temperature selected.

2. Check coolant flow through the heater control valve. The heater control valve should be located under the receiver/dryer on the front of the car and under the hood. The V-8 cars have an auxiliary electric water pump, which should also be running at idle when the heat is switched on.

3. The hot water valve defaults open, so when disconnected, all of the hoses going to it should be warm. If not the valve, it is plugged or stuck.

Potential Causes:   Water Valve: Faulty/restricted hot water valve.
Air Conditioning Control Module (ACCM)
Coolant Pump: Electric coolant circulation pump inoperative.
Wiring

Confirmed Fix:  Replaced Dual Coolant Control Valve

Tech Tips:  Connect/disconnect the hot water valve connector several times while tapping on it to see if it is stuck/plugged. Check for fault codes in the Heating, Ventilation and Air Conditioning (HVAC) system using a Jaguar WDS.

Dodge Ram 1500 Truck SLT 5.7L, V8, MFI, OHV, VIN D trailer lights wont work

2006 Dodge Ram 1500 Truck SLT 5.7L, V8, MFI, OHV, VIN D
MILEAGE:   95,000


Customer Concern:  All the brake lights on the truck work properly but the trailer brake lights don't work. The trailer parking lights and turn signals all are working. There are no codes in the Totally Integrated Power Module (TIPM).


Tests:    1. Check brake switch operation in the Totally Integrated Power Module (TIPM).

2. If the brake switch input doesn't change from yes to no or applied to not applied check power feed at the TIPM C6 connector pin #7 the White/Tan wire - should have power when the brakes are applied.


Potential Causes:   Totally Integrated Power Module (TIPM)
Totally Integrated Power Module (TIPM) Wiring
 
Confirmed Fix:  Repaired Totally Integrated Power Module (TIPM) Connector: Repaired TIPM C6 connector pin 7 for a bad connection causing the TIPM to not see brake switch input.
 


Tech Tips:  The brake input to the TIPM is hard wired from the brake switch. The wiring diagram forgets to put the switch in there but shows a splice # with no input. It appears to be a high side driver at the TIPM for brake switch output but its being fed so the TIPM knows the brakes are applied. Then the TIPM puts out voltage to the trailer wiring for the brakes.






Toyota Sienna XLE 3.3L, V6, MFI, DOHC, Eng Desg 3MZFE sliding door will not open


VEHICLE:   2004 Toyota Sienna XLE 3.3L, V6, MFI, DOHC, Eng Desg 3MZFE
MILEAGE:   93,572


Customer Concern:  The sliding door will not open. If the release actuator is removed from the latch assembly the system will operate normally.


Tests:    1. At the release actuator check to see if the Black wire gets battery voltage supplied to it when the switch is pressed to on and the switch is pressed to open.

2 Supply battery voltage to the Black wire manually to see if the actuator will operate.


Potential Causes:  Malfunctioning Release Actuator
 
Confirmed Fix:  Replaced Right Power Sliding Door Latch Release Actuator
 

Tech Tips:  When the door is operated the computer supplies battery voltage to the Black wire at the actuator but the actuator does not operate. When manually supplying voltage to the actuator the actuator makes a noise.





Cadillac Seville SLS 4.6L, V8, MFI, DOHC, VIN Y, Naturally Aspirated, Eng Version Northstar

2003 Cadillac Seville SLS 4.6L, V8, MFI, DOHC, VIN Y, Naturally Aspirated, Eng Version Northstar, TPI-SFI
MILEAGE:   58,788


Customer Concern:  The front passenger heated seat is inoperative.


Tests:    1. Check resistance through the heating elements for an open or too high of a resistance.

2. Sit on the seat to push on the cushions and check for a glitch on the meter.

3. Compare resistance readings to the driver's side. Resistance should be less than 5Ω.


Potential Causes:   Heating Element
 
Confirmed Fix:  Replaced Heated Seat Elements

Same issue with The Lincoln

Cadillac Seville SLS 4.6L, V8, MFI, DOHC, VIN Y, Naturally Aspirated, Eng Version Northstar
Heated seat doesnt work

2004 Honda Pilot EX 3.5L, V6, MFI, SOHC, Eng Desg J35A4, 3475 CC

2004 Honda Pilot EX 3.5L, V6, MFI, SOHC, Eng Desg J35A4, 3475 CC
MILEAGE:   168,965


Customer Concern:  The vehicle came to the shop with a squeaking noise. Found the noise to be coming from the center support of the drive shaft. Pulled the drive shaft and sent it out for diagnosis and repair. After repair, it was re-installed but the noise was still there, but not as loud. Removed the drive shaft again and sent it back to the driveline repair shop who re-checked and re-did their work. The vehicle was returned to the customer but 400 miles later it came back with a vibration concern. When reaching 50 MPH, the vibration begins. You feel it in the seat like a massage chair and a droning noise is heard inside. Removed the shaft and test drove and found the concern gone. The drive shaft was sent it back to the driveline shop for a balance. They said the boot was torn on the center support because something hit it. We got it back and it's doing the same thing.


Tests:    1. Are the U-joints phased correctly? Put a small magnet bubble level on the front and rear U-joints. They should be parallel to each other.


Potential Causes:   Driveshaft Phase
 
Confirmed Fix:  Adjusted Driveshaft Phase

Hyundai Santa Fe GLS 3.5L, V6, MFI, DOHC, Eng Version N/R, Bosch, 3500 CC

Hyundai Santa Fe GLS 3.5L, V6, MFI, DOHC, Eng Version N/R, Bosch, 3500 CC

Customer Concern:  The customer stated that the vehicle would not accelerate. Road tested the vehicle and it runs and drives fine. There is an Accelerator Pedal Position (APP) sensor 2 circuit code P2127.

Tests:  
1. Locate the APS sensor, located under the hood by the brake booster, and verify there is a good connection and 5-volts on the Green wire and the Red/Orange wire. Next, verify that the grounds are good on the Brown and Black/White wire. If the 5-volts and ground are good, then back probe the Pink wire for APS #2 and the White wire for APS #1 and both sensors should sweep together from about 0.5 volt to about 5 volts. Use a scope, if necessary, to see the signal drop out. If the signal drops out, replace the sensor.

2. If the signal is good then check the signal at the Engine Control Module (ECM) and look for a harness or a connection issue.

Potential Causes:   Accelerator Pedal Position (APP) Sensor
Accelerator Pedal Position (APP) Sensor Circuit
 
Confirmed Fix:  Replaced Accelerator Pedal Position (APP) Sensor


Chevrolet Tahoe LTZ 5.3L, V8, MFI, OHV, VIN J, Eng Desg LY5 airbag problem

Chevrolet Tahoe LTZ 5.3L, V8, MFI, OHV, VIN J, Eng Desg LY5

Air bags deployed and components replaced. Supplemental Inflatable Restraint (SIR) codes B1019 00, B1001 00, B0098 52, B0088 3A, B0087 3A, B0086 3A, B0085 3A, B0084 3A, B0083 3A, B0081 3A, B0081 71, B0081 0F, B0080 06, B0024 04, B0017 04, B1001 00.


Tests:  1. Program and set up the Inflatable Restraint Vehicle Rollover Sensor (ROS).2. Key On Engine Off (KOEO) with the Autel MaxiScan MS300 CAN Diagnostic Scan Tool for OBDII Vehicles perform the Setup New ROS procedure for the ROS.
3. Clear all codes and verify no current faults are present.
4. Program the Sensing and Diagnostic Module (SDM) and perform the setup procedure.5. In the BCM Module Setup menu, select Setup SDM Primary Key in BCM. Follow the scan tool on screen instructions.
6. In the SDM Module Setup menu, select Setup SDM. Follow the scan tool on screen instructions.
7. Cycle the ignition from OFF to ON. Verify no DTCs are set.
8. In the BCM Module Setup menu, select Setup SDM Primary Key in BCM. Follow the scan tool on screen instructions.



Potential Causes: Unprogrammed Sensing Diagnostic Module (SDM)
Unprogrammed Inflatable Restraint Vehicle Rollover Sensor (ROS)
Confirmed Fix: Programmed Sensing Diagnostic Module (SDM): Obtained Vehicle Calibration Information (VCI) program from AC Delco to program.
Programmed Inflatable Restraint Vehicle Rollover Sensor (ROS)

Monday, August 13, 2012

Volkswagen Jetta TDI 2.0L 18895 P2463 009315


VEHICLE: 2009 Volkswagen Jetta TDI 2.0L, L4, MFI, DOHC, Eng Desg CBEA

MILEAGE:  42,000


Customer Concern:

Trouble codes:
18895/P2463/009315 - Diesel Particle Filter: Excessive Soot Accumulation

16928/P0544/001348 - Exhaust Gas Temperature Sensor G235 Circuit Bank 1 Sensor 1

Tests:

1. Start by verifying function of the G235 Exhaust Gas Temperature Sensor 1. Failure of exhaust gas temperature sensor function can result in false Diesel Particulate Filter (DPR) soot load codes.

2. The G235 Sensor measures exhaust gas temperature pre-turbo. Using A Volkswagen compatible scan tool, select Measured Data Blocks and then Display Group 99. Display Group 99 will display 4 fields as follows:

Field 1 = Engine RPM

Field 2 = Pre-Turbo Temperature Sensor in Degrees Centigrade

Field 3 = Pre-Particle Filter Temperature Sensor in Degrees Centigrade

Field 4 = Post Particle Filter Temperature Sensor in Degrees Centigrade

3. With the engine fully cooled to ambient temperature, observe the temperature readings from Display Group 99. All exhaust gas temperature readings should be at or near ambient temperature (example: display of all sensors should read at or near 20 degrees centigrade at 68°Fahrenheit ambient temperature).

4. If the G235 Sensor does not indicate a correct temperature value, a sensor or wiring harness fault is the most likely cause.

5. Inspect the wiring harness for damage. The sensor is located on the turbo housing. The wiring harness will have a Brown ground wire (connector T2bz/1) and a red signal voltage wire (connector T2bz/2). Disconnect the harness and observe the temperature reading in Display Group 99 field 2. If the temperature reading changes when the harness is unplugged, the problem in the circuit is with the G235 sensor itself.

6. The G235 sensor has been prone to cracking of the exhaust gas sensing element in the exhaust stream. Remove the sensor and inspect for sensor mechanical damage/failure.

7. Once the G235 fault has been repaired, clear all trouble codes and test drive the vehicle to verify that no codes return.

8. If the 18895/P2463/009315 - Diesel Particle Filter: Excessive Soot Accumulation code returns, see the Tech Tips section for checking DPF soot loading.

Potential Causes:

 Exhaust Gas Temperature (EGT) Sensor G235
Exhaust Gas Temperature (EGT) Sensor G235 Wiring
Diesel Particulate Filter
Diesel Particulate Filter Regeneration Procedure

Confirmed Fix:

Replaced Exhaust Gas Temperature (EGT) Sensor G235

Tech Tips:

Note: Diesel particulate filter soot load can be observed using a full function Volkswagen Compatible scan tool. Select Measured Data Block and then Display Group 108 (Note: if display group 108 does not contain data try display group 241 as an alternate).

Field 2 displays the calculated DPF soot load and Field 3 displays the measured soot load of the DPF in grams.

If either the calculated or measured soot mass is above 30g but below 40g you can initiate a regeneration while standing (idle will be raised etc.), a forced regeneration while driving is also possible. Once the values are above 40g (but below the max 45g) the regeneration while standing is no longer available and the regeneration while driving must be performed. NOTE! If the particle filter load is above specification (45 grams) the particle filter needs to be replaced since the car may burn down when regenerating.

Lincoln MKX Base 3.5L The passenger heated seat is inoperative, does not work


VEHICLE:  2008 Lincoln MKX Base 3.5L, V6, MFI, DOHC, VIN C

MILEAGE:  49,000

Customer Concern:

The passenger heated seat is inoperative. The light comes on in the control panel when pushing the switch but the seat doesn't heat up.

Tests:

1. If a scanner with the correct software is available, start with pulling codes on the Dual Climate Controlled Seat Module (DCSM). If any codes are present, address as needed.

2. If a scanner is not available, access the DCSM on the underside of the front of the passenger seat. At connector C3036A (Black 12 terminal connector) check the resistance between pin 1 Grey/Blue (GY/BU) wire and pin 2 Blue (BU) wire. This will check the resistance of the heating element in the Thermo-Electric Device (TED) for the seat. The resistance should be 0.9-10.0Ω. If the reading is abnormally high indicating the heating element is open, verify the resistance between pins 1 and 3 on the 8 terminal connector for the TED itself. If high at the TED 8 terminal connector, replace the TED for the seat cushion.

3. If the seat cushion element tests OK, check the backrest cushion. This is pin 3 Blue/Brown (BU/BN) wire and pin 4 White (WH) wire. The resistance should be 0.9-10.0Ω. If the reading is abnormally high indicating the heating element is open, verify the resistance between pins 1 and 3 on the 8 terminal connector for the backrest TED itself. If high at the TED 8 terminal connector, replace the TED for the backrest.


Potential Causes:

Thermo-Electric Device (TED)
Thermo-Electric Device (TED) Wiring
Thermo-Electric Device (TED) Connector


Confirmed Fix:

Replaced Thermo-Electric Device (TED): Replaced the TED in the seat cushion.



Tech Tips:

The climate controlled seats have items called Thermo-Electric Devices (TED) which contain the heating element, the temperature sensor, and the blower motor for the seats all in one unit.

2008 Lincoln MKX Base 3.5L, V6, MFI, DOHC, VIN C The passenger heated seat is inoperative. The light comes on in the control panel when pushing the switch but the seat doesn't heat up.

Toyota Corolla S 1.8L trouble code C1290


VEHICLE:  2009 Toyota Corolla S 1.8L, L4, MFI, DOHC, VIN L, Eng Desg 2ZRFE


MILEAGE:  56,000


Customer Concern:

The vehicle came in for a front brake job. We performed the brake job and when we were finished, trouble code C1290 was set.


Tests:

1. Perform the zero point calibration for the steering angle sensor.


Potential Causes:
Steering Angle Sensor (SAS) Calibration

Confirmed Fix:

Performed Steering Angle Sensor (SAS) Calibration


Tech Tips:

When performing a brake job, make sure that when the wheels are turned from side to side, that the steering wheel is used to turn the wheels. Do not turn the wheels from side to side by grabbing the wheels and turning them. This can upset the calibration of the steering angle sensor.

2009 Toyota Corolla S 1.8L The vehicle came in for a front brake job. We performed the brake job and when we were finished, trouble code C1290 was set.

2008 Mazda CX-7 Grand Touring 2.3L sensor code P0101


VEHICLE:  2008 Mazda CX-7 Grand Touring 2.3L, L4, MFI, DOHC, Eng Desg MZR


MILEAGE:  66,259


Customer Concern:

The engine is a bit low on power at higher speeds and Mass Air Flow (MAF) sensor code P0101 is present.


Tests:

1. Check for plugged catalytic converter(s). It is not uncommon to have a plugged exhaust after a turbocharger failure.

2. Check boost pressure in the intake manifold to determine if the turbocharger is boosting or not. If not, the turbocharger may be faulty.


Potential Causes:

Restricted Exhaust System
Turbocharger


Confirmed Fix:

Replaced Turbocharger

2008 Mazda CX-7 Grand Touring 2.3L sensor code P0101

Chrysler Town & Country Limited 4.0L P0344 buck and jerk on deceleration and over 3000 RPM


VEHICLE:  2008 Chrysler Town & Country Limited 4.0L, V6, MFI, SOHC, VIN X

MILEAGE:  168,000

Customer Concern:

Code P0344 buck and jerk on deceleration and over 3000 RPM.

Tests:

1. Labscope the Camshaft Position (CMP) Sensor and Crankshaft Position (CKP) Sensor compare to good pattern.

2. If Cam and Crank pattern's are shifted, or erratic remove cam sensor and inspect cam gear tone wheel for any movement with screw driver. If tone wheel is loose, replace camshaft gear.


Potential Causes:

Camshaft Position (CMP) Sensor
Camshaft Position (CMP) Sensor Tone Wheel
Crankshaft Position (CKP) Sensor
Crankshaft Position (CKP) Sensor Wiring
Camshaft Position (CMP) Sensor Wiring
Timing Belt

Confirmed Fix:

Replaced Camshaft Position (CMP) Sensor Tone Wheel


Tech Tips:

We have had reports of the tone wheel being lose on the Cam gear on the 4.0 liter engine.

2008 Chrysler Town & Country Limited 4.0L P0344 buck and jerk on deceleration and over 3000 RPM

Honda Pilot EX 3.5L Codes: P0300, P0301, P0302, P0303, P0304, P0305 and P0306


VEHICLE:  2006 Honda Pilot EX 3.5L, V6, MFI, SOHC, Eng Desg J35A9

MILEAGE:  77,000

Customer Concern:

Multiple engine misfires. Codes: P0300, P0301, P0302, P0303, P0304, P0305 and P0306.


Tests:

1. Check the Exhaust Gas Recirculation (EGR) valve voltage on the scan tool, it should be 1.25 V when the EGR valve is closed. Sometimes the valve will stick, causing a rough idle.

2. If the engine misfires when driving, block or unplug the EGR valve and see if the problem goes away. If the problem goes away, check for a faulty EGR valve or EGR distribution problem.

3. Load test each ignition coil and see if one is breaking down intermittently. One faulty ignition coil can set all 6 misfire codes. Also verify the spark plugs are good.

4. If the engine misfires at idle and it's not an ignition coil issue or a lean problem, it is common for the valve to get tight and cause a rough idle with misfire codes.


Potential Causes:

Exhaust Gas Re-Circulation (EGR) Control Valve
Ignition Coil
Tight Engine Valves
Spark Plug(s)

Confirmed Fix:

Cleaned Exhaust Gas Recirculation (EGR) Passages

2006 Honda Pilot EX 3.5L Codes: P0300, P0301, P0302, P0303, P0304, P0305 and P0306

Ford F-250 Super Duty XLT 6.0L The engine will not start when hot. It is not building enough Injection Control Pressure


VEHICLE:  2006 Ford F-250 Super Duty XLT 6.0L, V8, MFI, OHV, VIN P, Eng Version Power-Stroke, #Valves 32

MILEAGE:  95,536


Customer Concern:

The engine will not start when hot. It is not building enough Injection Control Pressure (ICP). The Injection Pressure Regulator (IPR) shows 85% cranking. The oil pressure gauge does show pressure when cranking and the oil has been changed.


Tests:

1. If the oil supply is OK, check the ICP system for any leaks when it's not starting. When working on an F-series vehicle, remove the ICP sensor from the passenger side valve cover and connect shop air to the fitting in the valve cover. When working on a 2005 or newer E-Series vehicle, connect the shop air pressure to the test port on the high pressure pump itself (this is a port that normally has a pipe plug in it and can be accessed by removing the doghouse inside the vehicle). With air applied, turn the key on and either use a scanner to command the Injection Pressure Regulator (IPR) closed (if the function is available) or back probe the Yellow/Red (Y/R) wire at the IPR and ground it. There should be very little to no air heard in the crankcase with the IPR grounded.

2. If there is no difference in the air heard when turning the key on and grounding the IPR, suspect a leaking IPR or leak in the system. Remove the valve covers to check for any leaks at the injectors. If none are found, remove the rear engine cover to access the ICP pump and check for any leaking lines or connections and repair as needed.

3. If there are no leaks but there is air heard when pressurizing the system, suspect a faulty IPR. Replace it and recheck operation.

4. If there is no air heard when pressure testing the system, suspect a faulty ICP pump.

Potential Causes:

Leaking Fitting
Injection Control Pressure Pump
Injection Pressure Regulator (IPR)
Leaking Injector
Leaking Line

Confirmed Fix:

Replaced High Pressure Oil Pump Branch Tube Adapter: Replaced the Snap To Connect fitting.


Tech Tips:

Refer to TSB 08-9-9 (or 08-18-6 if available) for related information on pressure testing the ICP system and the Snap To Connect (STC) fitting replacement.

2006 Ford F-250 Super Duty XLT 6.0L The engine will not start when hot. It is not building enough Injection Control Pressure

Honda Accord EX 2.4L The check engine light is on with a code P2138


VEHICLE:  2006 Honda Accord EX 2.4L, L4, MFI, DOHC, Eng Desg K24A8

MILEAGE:  78,000

Customer Concern:
The check engine light is on with a code P2138, and at times the vehicle will not accelerate correctly.

Tests:

1. Locate the Accelerator Pedal Position (APP) sensor on the firewall on the right side of the engine compartment. There is an accelerator cable running to it and a 6 wire Black connector on the APP sensor. Verify pin #1, the Yellow/Blue wire, has 5 volts key on from the Engine Control Module (ECM) and there is ground on the Green/Yellow wire pin #2. Then check the APP #2 sensor sweep on the Red/Yellow wire pin #3. The voltage should sweep from 0.2-0.3 volts to around 2.2-2.3 volts and not drop out.

2. Next check the APP #1 sensor and verify the Green/White wire pin #6 has a good ground and Pin #5, a Yellow/Red wire, has 5 volts. Then check the sweep signal on the Red/Blue wire pin #4, it should start at 0.5 volts and sweep up to 4.5 volts and not glitch or drop out. If any of the sensors drop out, the APP sensor will need to be replaced.

3. If the signals are good, check the reading on a scan tool or verify the wire harness and connections are good to the Engine Control Module (ECM).

Potential Causes:
Accelerator Pedal Position (APP) Sensor
Wiring

Confirmed Fix:
Replaced Accelerator Pedal Position (APP) Sensor

2006 Honda Accord EX 2.4L The check engine light is on with a code P2138

Chevrolet Silverado 1500 WT 5.3L The engine intermittently stalls and will not restart


VEHICLE:  2008 Chevrolet Silverado 1500 WT 5.3L, V8, MFI, OHV, VIN J, Eng Desg LY5


MILEAGE:  50,303

Customer Concern:
The engine intermittently stalls and will not restart. There is no fuel pressure. It has a new fuel pump installed and the wiring is OK.

Tests:

1. Verify good power and ground to the Fuel Pump Control Module (FPCM).

2. If powers and ground are both good, check for voltage on the Dk Green/White wire at pin 13 of the FPCM while commanding the fuel pump on and off via the scanner.

3. If voltage is present when commanded, verify a good connection to the FPCM. If OK, replace the FPCM. Programming is required after installation.


Potential Causes:

Fuel Pump Control Module
Fuel Pump Control Module (FPCM) Ground
Fuel Pump Control Module (FPCM) Power
Fuel Pump Control Module Wiring

Confirmed Fix:

Replaced Fuel Pump Control Module

Chevrolet Silverado 1500 The engine intermittently stalls and will not restart. There is no fuel pressure. It has a new fuel pump installed and the wiring is OK.

BMW X5 3.0i 3.0L A/C Compressor will not engage. System full, code 125


VEHICLE:  2001 BMW X5 3.0i 3.0L, L6, MFI, DOHC, Eng Desg M54, Siemens MS 43

MILEAGE:  55,495

Customer Concern:

Compressor will not engage. System full, code 125 present in the engine control module. When the code is cleared, the A/C compressor engages for about 10 seconds and quits. High side pressure is about 200 PSI.

Tests:

1.  At the connector for the electric auxiliary fan, check for constant battery voltage on the Red/Blue wire.

2.  Check for ground on the solid Brown wire.

3.  After clearing codes in the Engine Control Module (ECM) and the Heating, Ventilation and Air Conditioning (HVAC) system module, and cycling the ignition key, backprobe the small Black/Green wire and check for voltage pulse immediately after starting, as the ECM checks function of the fan.


Potential Causes:
Auxiliary Fan
Wiring

Confirmed Fix:

Replaced Auxiliary Coolant Fan

Tech Tips:
Fault code 125 is for auxiliary fan actuation.  The A/C compressor clutch will be shut off if the auxiliary fan cannot be made to operate

Sunday, August 12, 2012

BMW 325i Base 2.5L, L6, Trouble codes P0300, P0171 and P0174


2001 BMW 325i Base 2.5L, L6, MFI, DOHC, Eng Desg M54, Siemens MS

MILEAGE:  181,000

Customer Concern: The check engine light is on. Trouble codes P0300, P0171 and P0174 are present.
Tests:

1. Check for an intake air leak in the throttle body, intake runner gaskets and Positive Crankcase Ventilation (PCV) valve. The best time to check for intake leaks is when the engine is cold, as the gaskets tend to seal up as they expand after warm up.

2. A smoke machine can be used to check for leaks, or the intake area can be pressurized with regulated shop air to 10 PSI. Then spray around the throttle body with soapy water and look for bubbles.

3. Check the PCV system by testing the crankcase vacuum. It should be from 8 to 15 millibar (that equals about 1/4 to 1/2 PSI of vacuum). It can be checked at the oil dip stick tube.

Potential Causes:

Leaking PCV Valve
Air Mass Meter (AMM)
Restricted Fuel Injectors
Insufficient Fuel Pressure
Intake Runner Gaskets.
Leaking Positive Crankcase Ventilation (PCV) System
Leaking Secondary Air Injection (SAI) Check Valve
Leaking Throttle Body

Confirmed Fix:

Replaced Brake Booster Vacuum Supply Hose
Tech Tips:
Common areas for leakage on the engine are vacuum lines, cracked intake boots and around the crankcase breather or the breather itself.

BMW 325i Base 2.5L, L6,  Trouble codes P0300, P0171 and P0174 are present

Nissan Maxima GLE 3.0L, V6, the engine cranks like it is out of time. It bucks the starter and backfires


VEHICLE:  2000 Nissan Maxima GLE 3.0L, V6, MFI, DOHC, Eng Desg VQ30DE, Bosch L-Jetronic

MILEAGE:  108,000
Customer Concern: Intermittently the engine cranks like it is out of time. It bucks the starter and backfires. When the engine does start, it runs fine.

Tests:
1. Try moving the negative battery cable from the engine to one of the starter mounting bolts and see if the problem is corrected.
2. If no help, make sure all of the transmission to engine mounting bolts are clean and tight and that none are missing.
3. A last resort would be to unbolt and pull the transmission back from the engine and clean/lightly sand the entire mating surfaces of the engine and the transmission really well and bolt the transmission back up to the engine.


Potential Causes:
Battery Negative Cable
Engine To Transmission Mounting Surface

Confirmed Fix:

Repositioned Battery Negative Cable: Moved the battery ground cable to the lower starter bolt and cleaned the transmission case bolts.

Tech Tips:

The Position of Crankshaft (POS) counts off the rear Crankshaft Position (CKP) sensor should be 180 any time the engine is cranking or running. The Engine Control Module (ECM) marks number 1 off the front CKP sensor and counts 180 off the rear CKP sensor. The fact that the engine always runs fine once it starts, indicates the rear CKP sensor itself is fine - it is the magnetism of the starter affecting the rear CKP sensor while cranking that is the problem.

Nissan Maxima GLE 3.0L, V6, the engine cranks like it is out of time. It bucks the starter and backfires

Hyundai Sonata GLS 2.4L, L4, MFI, DOHC, (EVAP) vent valve code P0449.


VEHICLE:  2010 Hyundai Sonata GLS 2.4L, L4, MFI, DOHC, VIN C, Eng Version N/R

MILEAGE:  89,000

Customer Concern: Malfunction Indicator Light (MIL) is on. Evaporative Emission (EVAP) vent valve code P0449.

Tests:
1. Check the air filter for the Canister Closing Valve (CCV) to determine if the filter is plugged/restricted.
2. Check the CCV valve hoses for being kinked or restricted.
3. Check the CCV for being stuck closed. When the CCV is powered up and grounded (energized), it should be closed, but when de-energized it should be open and be able to be easily blown through by mouth.

Potential Causes:

Canister Closing Valve (CCV)

Canister Closing Valve (CCV) Vent Hose

Canister Closing Valve (CCV) Air Filter

Confirmed Fix:

Replaced Canister Closing Valve (CCV): Replaced the CCV too.

Replaced Canister Closing Valve (CCV) Air Filter: The CCV air filter was plugged.

Hyundai Sonata GLS 2.4L, L4, Malfunction Indicator Light (MIL) is on. Evaporative Emission (EVAP) vent valve code P0449.


Ford F-350 Super Duty, misfire, code P1273


VEHICLE:  2000 Ford F-350 Super Duty Lariat 7.3L, V8, MFI, OHV, VIN F
MILEAGE:  289,250
Customer Concern: The engine will misfire intermittently and has a code P1273.

Tests:
1. Clear the codes and perform the injector buzz test to determine if the P1273 will reset.

2. If the code is a hard fault then at the valve cover connector, swap the Brown/Yellow (BN/YE) at pin 4 with the Tan wire at pin 3. Then clear the codes and redo the injector buzz test to see if it returns. If the code changes to a P1271, remove the valve cover and check for a loose Under Valve Cover (UVC) harness, damaged valve cover gasket, or faulty injector.

3. If the code P1273 still sets, put the wires back in their original location at the valve cover connector. Go to the Injector Driver Module (IDM), inside the Left Hand (LH) fender, and swap the BN/YE wire at pin 21 with the Tan wire at pin 6. Again clear codes and redo the injector buzz test. If the P1273 still sets, replace the IDM. If the code changes to a P1271, check for high resistance in the BN/YE wire between the IDM and valve cover connector.

Potential Causes:
Under Valve Cover (UVC) Harness
Valve Cover Gasket
Injector Driver Module (IDM)
Fuel Injector(s)
Fuel Injector Wiring

Confirmed Fix:
Replaced Engine Wiring Harness Connectors: The problem was in the engine harness connector that plugs in to the outside of the valve cover gasket.

Tech Tips:
The cylinder numbering on this Ford F-350 Super Duty Lariat 7.3L  is 1, 3, 5, 7 front to back on the Right Hand (RH) side and 2, 4, 6, 8 front to back on the Left Hand (LH) side.

Saturday, July 21, 2012

What’s leaking from my car? | Fox News

What’s leaking from my car? | Fox News: "Dangers

According to Poor, gasoline and antifreeze are the two most immediately dangerous fluids that can leak from a car. The gasoline is combustible, but antifreeze poses a different kind of threat. "Antifreeze has a sweet taste and smells (like maple syrup)," Poor says. "Dogs and cats will drink/lick antifreeze if they find it. One cup is enough to kill a large dog."" Any leak from under your vehicle should be looked at thouroughly

'via Blog this'

Friday, July 20, 2012

2013 Audi Q7 Joins Siblings, Gets Upgraded 240-hp Diesel

2013 Audi Q7 Joins Siblings, Gets Upgraded 240-hp Diesel: "The Audi Q7, like its platform-mates the Porsche Cayenne and the VW Touareg—is getting a 240-hp diesel six for the 2013 model year. This revised 3.0-liter V-6 engine delivers 15 hp more than it did last year, cuts 55 pounds of weight, and increases the EPA-rated fuel economy by 2 mpg in the city and 3 highway to 19 and 28, respectively. Torque for the new engine is the same as the outgoing version, at 406 lb-ft."

'via Blog this'

Toyota Recall Timeline: What Went Down When

Toyota Recall Timeline: What Went Down When: "Below is a timeline of the Toyota recall fiasco. In the (highly likely) event that there are more events, we’ll update this post.

 – A Lexus ES350 crashes at over 100 mph and bursts into flames, killing an off-duty California Highway Patrolman and three members of his family. The cause of the crash is determined to be a throttle that stuck open. At the time of the crash, the officer’s brother-in-law, a passenger in the car, is on the phone with police frantically reporting that the car won’t slow down."

'via Blog this'

Ford recalls '13 Escapes over fire risks, urges owners to stop driving SUVs | The Detroit News | detroitnews.com

Ford recalls '13 Escapes over fire risks, urges owners to stop driving SUVs | The Detroit News | detroitnews.com: "Ford Motor Co. recalled 11,500 2013 Escape SUVs on Thursday over fire risks, and urged owners to immediately stop driving the vehicles. It's the latest setback for the redesigned vehicle that launched last month.

The recall covers Escapes with the 1.6-liter engine, which were built through July 11. Escapes equipped with the 2.0-liter and the 2.5-liter engines are unaffected. Ford says it will replace an engine compartment fuel line, which could split and leak fuel, and could lead to an underhood fire"

'via Blog this'

Toyota Recall Information – 2009-2011 Recall Notices

Toyota Recall Information – 2009-2011 Recall Notices: "Is Your Vehicle Involved?
If you think your vehicle may be involved in a recent safety recall or service campaign, click here to go to the Toyota Owners site, where you can enter your Vehicle Identification Number (VIN) and find out"

'via Blog this'

Quick Spin: 2013 Tesla Model S

Quick Spin: 2013 Tesla Model S  "You collectively paid $465 million dollars to make this report possible so please read it to the end.

The battery-powered Tesla Model S is officially on the road, thanks in part to the aforementioned Department of Energy loan, but also the backing of many private investors – some of whom are named Brin and Page. Google it if you don’t know what I’m talking about.

The first customer cars are in the hands of their very patient depositors, and one or two cars are being built and shipped each day, a rate that will accelerate as production ramps up through the end of the year. By then, Tesla expects to have delivered 5,000 vehicles, which won’t even fill half of the 11,000 orders currently on its books.  In other words, it’s off to a pretty good start."

'via Blog this'

My Nissan Won't Start | eHow.com

"Diagnosing a no-start issue with your Nissan requires a logical approach to discovering what might be stopping your car from starting. When you try to start your car, voltage from the battery passes through the ignition switch to the Park/Neutral safety switch then to the brake/clutch pedal to the starter solenoid. When voltage reaches the solenoid, a contact is closed that sends power to the starter to start the engine. The starter motor spins, pushes the starter pin into the flywheel and rotates the engine."
My Nissan Won't Start | eHow.com:


'via Blog this'

Mexican Driver German Quiroga To Participate in NASCAR | Fox News Latino

Mexican Driver German Quiroga To Participate in NASCAR | Fox News Latino: "The American Dream of Mexican race car driver German Quiroga began to coalesce on Thursday when he signed with a NASCAR team to participate in four races in 2012 and show that Latinos do have a future in this sport.

Kyle Busch Motorsports announced that Quiroga will return to drive the Tundra 51 in the Camping World Truck Series, NASCAR's third national division.

Quiroga, a three-time NASCAR champion in Mexico, told Efe that although it had been difficult to break into U.S. auto racing he had been working "very hard" to play his best role so far in the sport this year.

"I'm used to winning races and competing in championships and that is what I'm going to continue doing. I'm ready for the new challenge and for my efforts to enable me to complete the whole season in 2013," he told Efe on Thursday"

'via Blog this'

Wednesday, July 11, 2012

Volkswagen Jetta TDI 18895/P2463/009315

VEHICLE: 2009 Volkswagen Jetta TDI 2.0L, L4, MFI, DOHC, Eng Desg CBEA

MILEAGE: 42,000

Customer Concern:

Trouble codes:

18895/P2463/009315 - Diesel Particle Filter: Excessive Soot Accumulation

16928/P0544/001348 - Exhaust Gas Temperature Sensor G235 Circuit Bank 1 Sensor 1

Tests: 1. Start by verifying function of the G235 Exhaust Gas Temperature Sensor 1. Failure of exhaust gas temperature sensor function can result in false Diesel Particulate Filter (DPR) soot load codes.

2. The G235 Sensor measures exhaust gas temperature pre-turbo. Using A Volkswagen compatible scan tool, select Measured Data Blocks and then Display Group 99. Display Group 99 will display 4 fields as follows:

Field 1 = Engine RPM

Field 2 = Pre-Turbo Temperature Sensor in Degrees Centigrade

Field 3 = Pre-Particle Filter Temperature Sensor in Degrees Centigrade

Field 4 = Post Particle Filter Temperature Sensor in Degrees Centigrade

3. With the engine fully cooled to ambient temperature, observe the temperature readings from Display Group 99. All exhaust gas temperature readings should be at or near ambient temperature (example: display of all sensors should read at or near 20 degrees centigrade at 68°Fahrenheit ambient temperature).

4. If the G235 Sensor does not indicate a correct temperature value, a sensor or wiring harness fault is the most likely cause.

5. Inspect the wiring harness for damage. The sensor is located on the turbo housing. The wiring harness will have a Brown ground wire (connector T2bz/1) and a red signal voltage wire (connector T2bz/2). Disconnect the harness and observe the temperature reading in Display Group 99 field 2. If the temperature reading changes when the harness is unplugged, the problem in the circuit is with the G235 sensor itself.

6. The G235 sensor has been prone to cracking of the exhaust gas sensing element in the exhaust stream. Remove the sensor and inspect for sensor mechanical damage/failure.

7. Once the G235 fault has been repaired, clear all trouble codes and test drive the vehicle to verify that no codes return.

8. If the 18895/P2463/009315 - Diesel Particle Filter: Excessive Soot Accumulation code returns, see the Tech Tips section for checking DPF soot loading.

Potential Causes: Exhaust Gas Temperature (EGT) Sensor G235

Exhaust Gas Temperature (EGT) Sensor G235 Wiring

Diesel Particulate Filter

Diesel Particulate Filter Regeneration Procedure

Confirmed Fix: Replaced Exhaust Gas Temperature (EGT) Sensor G235

Tech Tips: Note: Diesel particulate filter soot load can be observed using a full function Volkswagen Compatible scan tool. Select Measured Data Block and then Display Group 108 (Note: if display group 108 does not contain data try display group 241 as an alternate).

Field 2 displays the calculated DPF soot load and Field 3 displays the measured soot load of the DPF in grams.

If either the calculated or measured soot mass is above 30g but below 40g you can initiate a regeneration while standing (idle will be raised etc.), a forced regeneration while driving is also possible. Once the values are above 40g (but below the max 45g) the regeneration while standing is no longer available and the regeneration while driving must be performed. NOTE! If the particle filter load is above specification (45 grams) the particle filter needs to be replaced since the car may burn down when regenerating.

Toyota Corolla trouble code C1290

VEHICLE: 2009 Toyota Corolla S 1.8L, L4, MFI, DOHC, VIN L, Eng Desg 2ZRFE

MILEAGE: 56,000

Customer Concern:
The vehicle came in for a front brake job. We performed the brake job and when we were finished, trouble code C1290 was set.

Tests: 1. Perform the zero point calibration for the steering angle sensor.

Potential Causes: Steering Angle Sensor (SAS) Calibration

Confirmed Fix: Performed Steering Angle Sensor (SAS) Calibration

Tech Tips: When performing a brake job, make sure that when the wheels are turned from side to side, that the steering wheel is used to turn the wheels. Do not turn the wheels from side to side by grabbing the wheels and turning them. This can upset the calibration of the steering angle sensor.

Monday, June 18, 2012

Hyundai, check engine light is on, P0452

VEHICLE: 2007 Hyundai Veracruz SE 3.8L, V6, MFI, DOHC, VIN C

MILEAGE: 64,793

Customer Concern: The check engine light is on with an Evaporative Emissions (EVAP) pressure sensor low input automotive diagnostic code of P0452.

Tests: 1. Check the Fuel Tank Pressure Sensor (FTPS) for a 5 volt reference at the Brown wire, ground of less than 0.05 volts at the Gray/Black wire, and check the Green signal wire for about 2.5 volts with no pressure of vacuum in the fuel tank or EVAP system. Remove the fuel cap and see if the voltage changes.

2. If the voltage was low and came up with the cap off, check for a restriction in the charcoal canister or EVAP filter. Test the canister closed valve to be open at rest and closed when energized, test it several times to see if it sticks.

Potential Causes: Fuel Tank Pressure Sensor (FTPS)

Canister Closed Valve (CCV)

Charcoal Canister

EVAP Canister Vent Filter

Confirmed Fix: Replaced Fuel Tank Pressure Sensor (FTPS)

Tech Tips: This vehicle has a 5 year/60,000 mile bumper to bumper warranty and a 10 year/100,000 mile power train warranty

2008 Buick Enclave CXL 3.6L, V6 will not start will not crank


VEHICLE: 2008 Buick Enclave CXL 3.6L, V6, MFI, DOHC, VIN 7

MILEAGE: 37,000

Customer Concern: No start no crank.

No Electronic Control Module (ECM) communication.

Has Body Control Module (BCM) communication.

Ongoing body shop repairs.

Tests: 1. Key off, disconnect the scanner.

2. Check the resistance between pin 6 and 14 at the Data Link Connector (DLC). A value of 60
Ω +/- 10% is expected.

3. Disconnect the Electronic Control Module (ECM) at the radiator core support.

4. Check the resistance between pin 33 and 55 in the ECM Gray connector. A value of 60Ω +/- 10% is expected.

5. If the resistance is wrong, check for disconnected components or wiring and connection problems on the high speed GMLAN.

Potential Causes: Failed High Speed GMLAN

Confirmed Fix: Installed Headlight Control Module

Tech Tips: Note: Refer to wiring diagrams to decide options and early or late production.

The Headlamp Control Module is a part of the right headlight assembly.

 For additional help with your vehicle you can check out this automotive website. has some great information about most makes and model vehicles and is maintained daily

Thursday, March 15, 2012

Acura TL code P0700, code P0847

2004 Acura TL Base 3.2L, V6, MFI, SOHC, Eng Desg J32A3

Problem: Automatic transmission malfunction code P0700 is set. The D light will flash. 3rd clutch transmission fluid pressure switch code P0847 is set. Freeze frame data showed all three shift solenoids were off (4th gear) when the code set. The transmission shifts fine.

Tests: 
1. Backprobe and check the voltage for the 3rd clutch transmission fluid pressure switch on the Blue/White wire, at the 3rd clutch transmission fluid pressure switch, or on the Blue/White wire at terminal C5 at the PCM. The PCM sends out a 5.0 volt reference to the 3rd clutch transmission fluid pressure switch and the 3rd clutch transmission fluid pressure switch closes to ground (near 0 volts on the Blue/White wire) when there is 3rd clutch pressure. There should be 3rd clutch pressure when the transmission is in 3rd gear. There should be approximately 5.0 volts on the Blue/White wire when there is no 3rd clutch pressure - not in 3rd gear.

2. Backprobe and check the voltage for the 4th clutch transmission fluid pressure switch on the Blue/Yellow wire at the 4th clutch transmission fluid pressure switch or on the Blue/Yellow wire at terminal C13 at the PCM to see how it responds since the code set with the transmission in 4th gear. The PCM sends out a 5.0 volt reference to the 4th clutch transmission fluid pressure switch and the 4th clutch transmission fluid pressure switch closes to ground (near 0 volts on the Blue/Yellow wire) when there is 4th clutch pressure. There should be 4th clutch pressure when the transmission is in 4th gear. There should be approximately 5.0 volts on the Blue/Yellow wire when there is no 4th clutch pressure - not in 4th gear.

Potential Causes:  3rd Clutch Transmission Fluid Pressure Switch
Automatic Transmission

Confirmed Fix: Replaced 3rd Clutch Transmission Fluid Pressure Switch: Replaced both the 3rd clutch transmission fluid pressure switch and the 4th clutch transmission fluid pressure switch. The dealer had several in stock.
Replaced 4th Clutch Transmission Fluid Pressure Switch

Tech Tips: Trouble code P0700 in the Powertrain Control Module (PCM) just indicates there is a malfunction in the transmission. Need to check transmission codes to determine what the transmission malfunction is. Since freeze frame data showed all three shift solenoids were off (4th gear) when the code set, maybe the 3rd clutch transmission fluid pressure switch was still ON in 4th gear. Since the transmission shifts fine, it is more likely a defective 3rd clutch transmission fluid pressure switch.

Wednesday, March 14, 2012

Ford F-150 The Malfunction Indicator Light (MIL) is illuminated and the Powertrain Control Module

VEHICLE: 2009 Ford F-150 XLT 4.6L, V8, MFI, SOHC, VIN 8, Eng Version Triton

MILEAGE: 18,963

Problem: The Malfunction Indicator Light (MIL) is illuminated and the Powertrain Control Module (PCM) set Keep Alive Memory (KAM) codes P0171 and P0174.

The scan tool is showing one Long Term Fuel Trim (LFT) value at (+)6% and the other at (+)129%.

Tests: 1.
The LFT value that is displayed at 129% is an illogical reading. Fuel trim is a closed loop adjustment to the air fuel ratio sensor input readings. These values go positive, in the case of a lean running condition, or negative, in the case of a rich running condition. The value itself is a percentage of adjustment one direction or the other away from the base calculation of fuel injector pulse width. The base calculation is made based on the input values of the open loop sensors such as engine RPM, Mass Air Flow (MAF) sensor input, Intake Air Temperature (IAT) sensor and Cylinder Head Temperature (CHT) sensor. The LFT maximum movement from 0% is 25% positive or negative, and the SFT maximum from 0% is 33%, positive or negative, on most scan tool displays.

2. For the PCM to set codes P0171 and/or P0174, the fuel trim (SFT or LFT) needs to reach its maximum positive limit. Any double digit value of SFT or LFT can be considered excessive correction for a lean running condition.

3. When both banks are showing lean operation at idle speed but the values decrease to single digit readings in an off-of-idle running condition, the suggestive cause is a vacuum leak concern.

4. If the fuel trim values are seen to be high in off-of-idle conditions, it would suggest a MAF sensor input or fuel delivery issue.

Check fuel pressure. This vehicle has a mechanical returnless fuel system. Fuel pressure should indicate a constant reading of 50-70 PSI.

5. If the MAF sensor input is suspect for cause, inspect the MAF sensing wire for contamination and clean it using a MAF sensor safe cleaning agent. Do not blow dry the sensing element or wipe it with a cloth or cotton swab. Touching the sending element could cause it damage. Inspect the air filter element and air cleaner assembly for a potential airflow diversion which could cause a sensing issue for the MAF and address as needed.

6. If the MAF sensing element is cleaned or the MAF is replaced, clear the PCM's adaptive memory and recheck the SFT and LFT readings on the scan tool during closed loop operation to determine if there is still indication of lean running.

Potential Causes: Vacuum Leak

Air Induction Leak

Mass Air Flow (MAF) Sensor

Fuel Pump

Fuel Filter

Confirmed Fix: Replaced Mass Air Flow (MAF) Sensor

Mercedes benz Fill Transmission fluid

VEHICLE: 2009 Mercedes-Benz C300 4Matic Sport 3.0L, V6, MFI, DOHC, Eng Desg 272.948

MILEAGE: 80,000

Problem How is transmission fluid filled after service? There is no fill tube.

Tests: 1.
Identify the transmission type. If the transmission has a fluid fill tube without a dipstick, the transmission is a 5-speed 722.6. If the transmission has no tube, it is a 7-speed 722.9.

2.
With a 722.9 transmission, it is required to fill the transmission by using the drain in the pan. When the transmission pan is removed and filter replaced, start by adding 4 1/2 quarts and start the engine.

3.
Use a factory type scan tool to read transmission temperature. When at 40 deg. C and not more than 45 deg. C, fill fluid into the drain hole. Remove the tool and watch for the amount of fluid that drains out. With no fluid or a small amount draining back out, the fluid is not full enough. With large amounts of fluid draining out, wait until the stream is reduced to the size of a pencil.

Potential Causes: Information Only

Confirmed Fix: Performed Automatic Transmission Service: 5.5 liters

Tech Tips: Special tools are required to fill the transmission. Always use factory fluid. Always replace the transmission pan bolts and follow the torque procedures or they will break.

How to fill mercedes benz transmission fluid

Honda Accord will not start

VEHICLE: 
2002 Honda Accord EX 3.0L, V6, MFI, SOHC, Eng Desg J30A1

MILEAGE
135,583

Problem
Intermittent no start. When the engine does not start, there is spark but no fuel pressure.

Tests, diagnostics 
1. Locate the Programmable Fuel Injection (PGM-FI) main relay, under the driver's side of the dash, by the brake pedal. The Black/Yellow (BLK/YEL) wire powers the fuel pump.

2. When the key is turned on, the Engine Control Module (ECM) will ground the Green/Yellow (GRN/YEL) wire for 2 seconds so the fuel pump will operate.

3. If there is no or low voltage on the BLK/YEL wire, then verify that the Red/White (RED/WHT) wire has good battery voltage. If the circuits are OK, then the common failure is the PGM-FI main relay.


Potential Causes:

PGM-FI Main Relay

Ignition Switch

Confirmed Fix:

Replaced Programmed Fuel Injection (PGM-FI) Main Relay

So there is a conformed fix on a honda accord no start

Sunday, October 23, 2011

Ceramic Brake pads Offer longer brake pad life

Ceramic pads also extend brake life compared to most conventional lining materials. Akebono and Raybestos both say their durability testing has shown significantly longer life with no sacrifice in noise control, rotor life or braking performance when ceramic pads are used compared to other friction materials.

This is what  bad brake pad can do to your rotors. Replacing your brakes at the proper time can save you hundreds in costly repairs.

How ceramic pads differ from regular metallic pads

One of the main differences between ceramic-enhanced friction materials and semi-metallic brake linings is that ceramic pads contain no steel wool or fibers. Steel provides strength and conducts heat away from rotors, but it also makes pads noisy. Steel also acts like an abrasive and causes rotor wear. Substituting ceramic materials and copper fibers for steel allows ceramic pads to handle the high brake temperatures with less heat fade, to recovery quickly, to experience less wear on both the pads and rotors, and to virtually eliminate noise. Annoying brake squeal is eliminated because the ceramic-enhanced compound dampens noise and moves vibrations to a frequency beyond our range of hearing.



Other features that help make ceramic pads extra quiet include chamfers, slots and insulator shims. These features are also found on other types of pads, but may not be used on all applications.

Chamfers are angled or beveled edges on the leading and trailing ends of the pad that reduce "tip-in" noise when the brakes are first applied. Chamfers also reduce the surface area of the brakes slightly, which increases the clamping force applied by the pads against the rotors. This further helps to dampen sound-producing vibrations.

Slots are grooves cut vertically, diagonally, or horizontally in the pads to reduce noise by changing the frequency of vibration from an audible level to a higher, inaudible frequency beyond the range of the human ear. Slots also help reduce brake fade by providing a passage for gases and dust to escape at high brake temperatures.

Insulator shims provide a dampening layer to absorb and dissipate vibrations before they can cause noise.

Thursday, October 20, 2011

Chevrolet, Chevy, GMC, Jimmy, S10, Engine will not turn over when trying to start



Chevrolet, GMC, Jimmy, S10, Engine will not turn over when trying to start:

Simple diagnostic procedures to try when your engine will not turn over when trying to start.




1 Battery terminal connections loose or corroded. Check the cable terminals at the
battery; tighten cable clamp and/or clean off corrosion as necessary.

2 Battery discharged or faulty. If the cable ends are clean and tight on the battery posts,
turn the key to the On position and switch on the headlights or windshield wipers. If they
won't run, the battery is discharged.

3 Automatic transmission not engaged in park (P) or Neutral (N) or neutral safety switch
faulty. P) or Neutral (N) or neutral safety switch
faulty.

4 On manual transmissions, clutch pedal not depressed or clutch start switch rnalfunc-
tioningissions, clutch pedal not depressed or clutch start switch rnalfunc-
tioning

5 Broken, loose or disconnected wires in the starting circuit. Inspect all wires and con-
nectors at the battery, starter solenoid and ignition switch (on steering column). , loose or disconnected wires in the starting circuit. Inspect all wires and con-
nectors at the battery, starter solenoid and ignition switch (on steering column).

6 Starter motor pinion jammed in flywheel ring gear. If manual transmission, place transmission in gear and rock the vehicle to manually turn the engine. Remove starter and inspect pinion and flywheel at earliest convenience. ion jammed in flywheel ring gear. If manual transmission, place transmission in gear and rock the vehicle to manually turn the engine. Remove starter and inspect pinion and flywheel at earliest convenience.

7 Starter solenoid faulty

8 Starter motor faulty

9 Ignition switch faulty

10 Engine seized. Try to turn the crankshaft
with a large socket and breaker bar on the pulley bolt.

Thursday, July 28, 2011

Chevy, Gmc, S10 Blazer, Jimmy, adjust, check, timing

Chevy, Gmc, S10 Blazer, Jimmy, adjust, check, timing step by step guide with full pictures:


Refer to illustrations 35.4 and 35,5


Note: It is imperative that the procedures included on the Vehicle Emissions Control Information label be followed when adjusting the ignition timing, The label will include all information concerning preliminary steps to be performed before adjusting the timing, as well as the timing specifications,

1: Locate the VECI label under the hood and read through and perform all preliminary instructions concerning ignition timing,

2: Locate the timing mark pointer plate located beside the crankshaft pulley, The 0 mark represents top dead center (TDC), The pointer plate will be marked in either one or two-degree increments and should have the
proper timing mark for your particular engine noted. If not, count back from the 0 mark the
correct number of degrees BTOC, as noted on the VECI label, and mark the plate,

3: Locate the notch on the crankshaft balancer

of pulley and mark it with chalk or a dab of paint so it will be visible under the timing light

4: With the ignition off, connect the pickup lead of the timing light to the number one spark plug wire (see illustration). Do not pierce the wire or attempt to insert a wire between the boot and the wire. Connect the timing light power leads according to the manufacturer's instructions. Note: Some engines incorporate a magnetic timing probe hole for use with special electronic timing equipment. Consult the manufacturer's instructions for proper use of this equipment.

5: Start the engine, aim the timing light at the timing mark by the crankshaft pulley and note which timing mark the notch on the pulley is lining up with (see illustration).

6: If the notch is not lining up with the correct mark, loosen the distributor hold-down bolt and rotate the distributor until the notch is lined up with the correct timing mark.

7: Retighten the hold-down bolt and recheck the timing.

8: Turn off the engine and disconnect the. timing light Reconnect the number one spark plug wire, if removed.

Chevy, Gmc, S10 Blazer, Jimmy, adjust, check, timing