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Prev Professional Automotive Repair Technical Discussions for December 9, 2006
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Open Help Requests for GM
Help Request Answers
1994 Buick LeSabre Limited 3.8L Surge VIN: 1G4HR52L3R
Hello to the Tech Team: I'm fighting an intermittent drivability problem that I can't seem to locate. This vehicle runs perfect and drives great except for an intermittent, and what feels like, either a lean fuel misfire or ignition misfire. This happens inte... Trouble codes: P0321
1999 Chevrolet K3500 6.5L Driveline VIN: 1GCHK33F4X
This truck came to me after the local dealer blew it off stating the condition is normal. Customer complaint sever binding on turns when in 4WD. He stated recently running over a large rock by accident. inspected truck found some minor damage to LF axle shaft ...
1999 Chevrolet Silverado 1500 5.3L cooling/engine VIN: 2GCEK19T7X
Brought truck in complaining of a coolant leak and check engine light on. Pressure checked the system, and found no external leaks. One thing I noticed, if you shut the truck off for a few minutes, and fire it back up, the misfiring monitor starts showing all ...
2004 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on VIN: 1GCHK292X4
Diesel and GM techs ... We've had this truck in here a few times with an intermittent MIL .The first time we got P0652/p2228/p2563 .The second time it was p0652/p2138/p2140 and p0228 .All checks out fine when we scan the datastream , but codes seem to ... Trouble codes: P0652, P2138, P2140, P2228, P2563
1994 GMC C1500 Suburban 5.7L Cuts out, Misfire VIN: 1GKEC16K3R
thanks to all in advance, spark cuts out!! vehicle brought in running rough. customer replaced timing chain & gears and ignition coil. wanted full tune up and diagnosed if the tune up did not fix running problem. installed a/c delco tune up parts. found distri...

Fixes & Summaries for GM
Fix/Summary Answers
1995 Buick Park Avenue 3.8L No Start, Stall
thanx for the ideas, It had several problems that had to be fixed and they all were related. We had a horible ground for the pcm, coroded to hell so i cleaned all of them, but it was too late for the cam sensor and pcm, because it back feed into both, the ca...
1989 Chevrolet C1500 Cheyenne 5.0L 1-2 shift VIN: 1GCDC14H2K
Greetings everyone, Sorry I waited so long to post a fix on this but I wanted to be sure we had no problems crop back up before I closed my post. Thanks to all the great replies I recieved but the fix ended up being the governor feed tubes on the valve body we...
1992 Chevrolet Cavalier Z24 3.1L No Start, Stall VIN: 1G1JF14T1N
thanks for all that replied. the fix ended up being a crank sensor. found oil coming through old one. the most interesting part about this repair is the customer failed to understand the difference between no crank-no start, and crank-no start. so the ignition...
2001 Oldsmobile Alero GL 2.4L No Start VIN: 1G3NL52TX1
Thanks first off to all who replied. The problem was found in the passkey system. Sent vehicle to dealer and they replaced the module and reprogrammed it. All is fine now. Thanks for all the help.
2001 Oldsmobile Intrigue GLS 3.5L headlights VIN: 1G3WX52H61
i received many tips about the ignition switch. we replaced it with a new unit and no change. i checked for loose/poor connections at the ip fuse panel and worked my way back to the battery as directed with still no change. after talking to our local dealer an...
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