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Prev Professional Automotive Repair Technical Discussions for April 8, 2015
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Open Help Requests for GM
Help Request Answers
2002 Buick LeSabre Limited 3.8L No Start
Hello I have a 2002 buick lesabre 3.8. the problem is that there will be a complete no start after the vehicle is shut off. It happens after running for at least 10 minutes. After shutting it off, it will not start. Once in a while it will throw a cam code. Re... Trouble codes: P0340
1993 Chevrolet Astro 4.3L 2-3 shift VIN: 1GCDM19Z8P
Calling all tranny techs. I will try to explain the sequence of events. This is my shop vehicle and doesnt get used often anymore. It used to be daily driven for personal and work use. I have had it for about 5 years and it had about 130k at the time I got it....
2001 Chevrolet Silverado 2500 HD 6.6L Excessive Emissions, Blue smoke VIN: 1GCHK23181
This truck came to us with a complaint of excessive blue smoke when hot. I drove the vehicle to warm it up and did not notice any smoke while driving. The motor idles smoothly and runs well. I returned to the shop and let it idle for several minutes. Light blu...
2007 Chevrolet Equinox LS 3.4L tachometer VIN: 2CNDL13FX7
Hello Chevy Techs Customer helped somebody to jump start another car and they reverse the jumper cables, after that episode,the warning lights, power steering, tachometer were not working correctly, another shop replaced the main 80 amp fuse, and everything wo...
2011 Chevrolet Silverado 2500 HD LT 6.6L MIL Lamp on VIN: 1GC1KXC83B
I have this 6.6 setting a P0191 after a drive, park and let idle for few seconds, MIL comes on with code set. performed tests found on Mitchell and everything looks good. I put a new fuel filter on it as it had some aftermarket one on it and also put the lates...
2009 GMC Sierra 1500 SLE 5.3L Programming VIN: 3GTEK23M79
This truck wiped out the cam so we are deleting the DOD or AFM system. New cam, lifters, timing gears, valley cover, gaskets. Has anyone reprogrammed a computer for the delete, disabled the function that is. Can we use a different engine or year, or do we need...
2006 Pontiac Solstice 2.4L high idle VIN: 1G2MB33B16
Hello everyone, My Team and I thought after extensive research that our 'high idle' was due to the throttle body being dirty which it was but after disconnecting the throttle body the idle maintains itself in a 'high idle.' Even replaced the throttle body an... Trouble codes: P0122 (Throttle Position Sensor 1 circuit low voltage), P0223 (Throttle Position Sensor 2 circuit high voltage)

Fixes & Summaries for GM
Fix/Summary Answers
1997 Chevrolet C1500 Cheyenne 5.7L No Start VIN: 2GCEC19R5V
Well, I had to give up on this one. I hate doing that but I have 20+ hours into it with no results. We checked the wiring to the PCM and it was good. We scoped the crank sensor and get no signal from it even with using a wrench moving it across in front of the... Trouble codes: P0336 (Ckp sensor performance), P0339 (Ckp sensor circuit intermittent).
2013 GMC Sierra 1500 SLE 6.2L Noise VIN: 3GTP2XE22D
Thanks again to all that replied. Of course, as suggested, this is a warranty issue and truck will be seen by the dealer. As many stated, there have been some piston noises with these engines(my 03 4.8 has had a slight cold noise since new) as well as lifter/c...
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