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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 3, 2012
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Open Help Requests for GM
Help Request Answers
2003 Chevrolet Silverado 2500 6.0L Hesitation, MIL Lamp on VIN: 1GCHK24U13
Truck came in with p0300 code and obvious misfires that were cleared up with plugs and wires. He came back about a month later saying its doing the same thing and the engine light came back on. I drove it after checking codes (p0101 and p0200) and it drove fin... Trouble codes: P0101, P0200
2003 Chevrolet Venture LS 3.4L tps VIN: 1GNDX03E93
vehicle came in with po121 tps performance,it was jerking when accelerating.I replaced tps and now it has a very high rev.it has 5 volt referance,low volt referance,about 2v at idle and the ground is good. It shows tps % at 35 when in closed throttle position ...
2005 Chevrolet Avalanche 1500 LT 5.3L rear end VIN: 3GNEK12Z45
Customer complains of poor gas mileage & left rear tire skipping around left hand turns. Ive never experienced it myself,but was test driven many times.Customer states that its happened 4-5 times over the past 2 years.In the past 2 years only gets 11 mpg.any h...
1997 Pontiac Grand Am GT 3.1L valve seats fallen VIN: 1G2NW52MXV
Replace lifters on first time.
2001 Pontiac Grand Am GT 3.4L Unknown VIN: 1G2NW12EX1
customer states that the dome light comes on and off, the trunk opens, alarm goes off and the security light stays on. i went out to bring the car in and the battery was dead, i charged the battery and the car would start and shut off but the tach and all the ...
2008 Pontiac Grand Prix 3.8L Starting VIN: 2G2WP55278
Customer can in with no start condition say vehicle needs a alternator.did avr test and all ok.cleaned battery posts and sent her on her way.next day same condition.later she reveiled that after driving and and letting vehicle sit(hot soak 20-30 min) would not...

Fixes & Summaries for GM
Fix/Summary Answers
1999 Chevrolet Metro LSi 1.3L crank sensor VIN: 2C1MR2222X
i would like to thank everyone for your help. i tightend oil pan bolts and cleaned oil pan rust off. had to close air gap on crank sensor.starts and runs excellent!!! thanks again.
2004 Chevrolet Silverado 1500 SS 6.0L Unknown VIN: 2GCEK19N94
well thanks for all the help. there a broken wire somewhere inside the insulation so i swap out the seat harness and fix the problem...
2004 GMC C5500 Topkick C5C042 6.6L Shifting VIN: 1GDE5C1174
Thanks to the folks who responded. After removing the valve body for inspection, we found what appeared to be electrical arcing marks in the bore for shift valve E. We are concluding that we had voltage arc through the valvebody when the short to 24 volts occu...
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