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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for June 12, 2011
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Open Help Requests for GM
Help Request Answers
1993 Chevrolet Astro 4.3L Transmission VIN: 1GCDM19Z8P
OK my fellow techs, as you already know the hardest problem to troubleshoot is the one that doesn't happen when you are trying to diagnose. This is my 93 Astro van and is in perfect shape, it is on the road all day every day. This van has an intermittent tran...
2006 GMC Sierra 1500 SLE 5.3L No Start VIN: 1GTEK19886
hello, i have this pick-up that was brought in for ac repair and turned into a no start. customer had told us cooling fans run all the time and the ac works only intermitently. we ran thru the system and found 2 severly corroded wires under the engine related ... Trouble codes: P1336

Fixes & Summaries for GM
Fix/Summary Answers
1995 Chevrolet Cavalier 2.2L mil lite VIN: 1G1C5241S7
a used pcm fixed it. new is not alway's better. thank's for the help!!!
2001 GMC Safari SL 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GTDM19W41
Replaced #4 cyl fuel injector. Thanks for all the replies ,, Did an injector flush before changing the poppet did actually improve quite a bit! A few techs suggested the crank sensor to be shimed if touching crank as per gm tsb which I will check anyway Da... Trouble codes: P0304 (Cylinder 4 misfire).
2000 Pontiac Sunfire SE 2.2L Cuts out VIN: 1G2JB1247Y
Most replies pointed at the cam signal but it was checked and was good.I looked over the wiring diagram to the crank signal and noticed it first went to the ignition module and from there to the ECM.The lab scope pattern looked a little different coming out... Trouble codes: P0336.
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