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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 23, 2011
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Open Help Requests for GM
Help Request Answers
1991 Chevrolet Camaro Z28 5.0L Cuts out VIN: 1G1FP33F2M
Vehicle came in on a hook 3 weeks ago with a no start condition,all in all it did and does start but only stays running for 60 seconds.then promply shuts down.on occasion it will lope continuosly at 375 rpm,but cuts off as soon as you touch accelerator pedal.c... Trouble codes: 45 (Rich condiion), 32 (No egr flow)
1998 Chevrolet K1500 Silverado 5.7L No Start VIN: 1GCEK14R9W
i have spark at coil wire but not through cap. timing marks are right on. pulled the crank sensor and the wheel is dead middle of the sensor. rotor points at the 8. has 5 degrees of backlash in timing chain. found a tsb about ckp throwing a 50 degree wack on t... Trouble codes: P1351
1999 Chevrolet K1500 Suburban 5.7L Tcc
We recently replaced the trans in this truck with reman trans and tcc. Ran perfect for over 1000 miles. Owner complains of tc occaisionally unlocking briefly. We could not duplicate. Had owner drive truck while I monitored tc lockup with tech II. At 42 mph on ...
2004 Chevrolet C5500 Kodiak C5U042 6.6L engine VIN: 1GBE5C3225
Could sure use some help on this one. Truck developed a knock and heavy smoke while driving. Had towed in to shop. Ran Solus on it for cylinder cutouts, # 3 injector when cutout quites down the knock. If you rev it up with # 3 cutout it gets noisy again. R&R #...
2005 Chevrolet Cobalt SS 2.0L No Start VIN: 1G1AP12PX5
Customer brings vehicle in for clutch replacement. However once repair was completed with new clutch kit installed I can not get vehicle to start.It cranks over just fine. This thing has completely got me baffled. I have got injector pulse but I do not have an...
1992 Geo Prizm 1.6L smokes VIN: 1HG4654977
Geo Prizm/ Corolla is acting up strange. It will burn oil and smoke it out the tail pipe like a steam train. However, only if the oil level is at the FULL mark on the dip stick and driving the car at an incline/ up hill on the street or freeway. If the oil lev...
2004 Oldsmobile Alero GL 2.2L Ign key VIN: 1G3NL12FX4
Hello All, Thanks in advance.. 04 Alero was towed in with ign key stuck in cyl.Common problem right?We replaced the key & tumbler along with ign switch.And we still have the same problem.Any idea? Thanks again Alex J.
1994 Pontiac Bonneville SE 3.8L Entire vehicle vibrates VIN: 1G2HX52L3R
Customer brought her vehicle to me after trans shop was unable to fix her vibration and determined it was not a transmission related concern. Vehicle is in reasonably good condition and drives comfortably about 95% of the time. If anything, I would say it is t...
2002 Pontiac Montana 3.4L Hesitation VIN: 1GMDU03E2D
this van came in overheating oil mixing with antifreeze put aused motor from a impala then put a rebuilt trans when the van is stopped at a light then you take off there is a hesitation then it takes off fuel pressure is good and never drops tps never glitches... Trouble codes: 440 (evap)
2005 Pontiac Grand Prix 3.8L Traction Control VIN: 2G2W952285
First, thank you for your time. Car came in with traction control light on and no other lights on. The traction light comes on just after you start to move. We scanned it and found C0240 PCM Traction control not allowed. We can communicate w/ebcm. We checked p...

Fixes & Summaries for GM
Fix/Summary Answers
1995 Chevrolet C1500 5.7L manual shift VIN: 2GCEC19K8S
First of all thanks to all who responded, even those of you that didn't read the complete posting and jumped the gun on what was wrong. Great ideas but Carters Trans helped the most and agreed that I cound flatten the detent spring some and releave some of the...
2003 Chevrolet Impala LS 3.8L all gears except R VIN: 2G1WF55K93
Found out the culprit was the forward band broke. Unfortunately I first opened up the side again to make sure I didn't do something wrong two weeks ago when I replaced the shift solenoids. After putting it all back together I dropped the pan and found a 2" p...
2004 Chevrolet Tahoe LS 4.8L No Start VIN: 1GNEC13V74
thanks for all the help, we called a/c delco on the problem that we are having. when we gave them the vin number, it is recorded as stolen vehicle that is why it is being shut down and it won't start. make sense!
2006 Chevrolet Silverado 2500 HD LT 6.0L Misfire VIN: 1GCHC23U46
Sorry for the late reply, but the crankshaft variation relearn fixed the issue. Thank you to all my fellow mechanics for your assistance. Jack [...] www.advancedengineX.com
2007 Chevrolet Tahoe LT 5.3L Poor Idle Quality, MIL Lamp on VIN: 1GNFK13027
Thanks for the replies. With your help and a little more research I decided to take the truck to our local gm dealership to have an idle relearn done with a tech 2. Immediately fixed the high idle problem, seems strange that the modis doesn't have the ability... Trouble codes: P0121 (throttle position sensor performance), P1516, P2119 (Throttle Actuator Control Throttle Body Range Performance), P2135.
1996 GMC Yukon SL 5.7L No Start VIN: 1GKEK13R3T
well mike from ohio you were thinking on the same lines as me.visual inspection of coil showed burned signs on side of coil and on bottom but ohms tested good along with coil wire.on another no start found coil wire firing to ground after removing plastic loom...
2006 GMC Sierra 2500 HD SLE 6.6L MIL Lamp on VIN: 1GTHK23D86
Thanks to the nine of you that replied. I have decided to just replace all of the glow plugs. This vehicle does not have a glow plug relay. It uses the GPCM for powering the plugs. I will post an update if the plugs fail again. It seems that the only way all o... Trouble codes: P0671, P0672, P0673, P0674, P0675, P0676.
1988 Pontiac 6000 2.8L Misfire
1997 Pontiac Grand Prix GTP 3.8L starter VIN: 1G2WP1219V
Thanks for all the replies. A new ignition switch (not the key tumbler but the electrical part) fixed the car. This one broke my balls because the scanner said the car was in gear 3 and I had power to the yellow wire going to the gear position switch (I called...
2004 Pontiac GTO 5.7L smoke from dipstick tube after rebuild VIN: FF4353454T
Thanks guys for all your suggestions..the cause was a shorted 3-2 on/off solenoid because a trainee left the connector pointing down when he replaced pan and pan jammed connector into solenoid and cooked it...An easy fix after I looked at it..
2002 Saturn L200 2.2L LF speed sensor VIN: 1G8JU54F02
It turns out that the vehicle was hit in the left front damaging the sensor mounting bracket. It broke the alignment pin off the bracket resulting in a larger then normal gap between the sensor and the relucter ring. anyway all is well and this vehicle is down...
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