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Prev Professional Automotive Repair Technical Discussions for May 5, 2015
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Open Help Requests for GM
Help Request Answers
2004 Cadillac SRX 3.6L Cuts out VIN: 1GYEE63794
This vehicle was bought from a dealership next door to me, and they had the transmission rebuilt, and supposedly replaced the throttle body at the same time, because I told them it needed it. The throttle body connector had also been replaced in the past. The ... Trouble codes: P0221 (App senor2 out of range), P2231 (HO2S b1s1 signal shorted to heater), P2234 (HO2S b2s1 signal shorted to heater), P0102 (MAF ckt signal low)
2007 Chevrolet Silverado 3500 Classic LS 6.0L clutch VIN: 1GCJC33U47
Customer already installed 3 clutches, new flywheel, new master and slave cyl. You can not put truck in gear at idle and stop, Customer has already worked on it TOO MUCH. Going to start on it today. Saw a TSB about vac bleeding the master cyl. Will try that- b...
1990 Oldsmobile Cutlass Supreme SL 3.1L Hesitation, Surge, Cuts out, Misfire VIN: 1G3WS54T5L
HI IATN TECHS, Need some help on the car. Customer came in with a intermittent car will stall out. Test drove and confirms engine does stall out after driving for a good 20 - 30 minutes. It stall out at a red light. The RPM somethings will surge a few times, s... Trouble codes: 33 (Map), 35 (Iac)

Fixes & Summaries for GM
Fix/Summary Answers
2001 Chevrolet Silverado 2500 HD LS 8.1L No shift
We can call this one fixed! It wound up being a bad TCM module. It would power up for about 5 seconds when first started and then shut down! Checked all power supplies and grounds and all was good. The PNP switch is was replaced by someone else and in fact the...
2004 Chevrolet Silverado 2500 HD 6.6L Misfire VIN: 1GCHK23194
Well I purchased the fuel quantity test kit and checked the left bank return rates because of the high balance rates on cylinders #2 and #8. #2 being the worst and my suspect bad injector. The rates were well within spec. When I was cranking the engine, I stil...
2005 Chevrolet Silverado 1500 5.3L air bag light VIN: 1GCEC19Z45
unplugged the connecter in the kick panel on drivers side. says light has not come back on. think that fixed it.
2000 Saturn LS 2.2L Poor Idle Quality, Surge, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1G8JS52F6Y
Thank you guys for all the responses. Indeed the timing was the problem!! Oddly enough The fix was in advancing the exhaust cam timing one tooth!! Once i did that, the vacuum went up to 17. Not perfect but the car ran without a problem. The AM timing chain wa... Trouble codes: P0300.
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