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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 28, 2014
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Open Help Requests for GM
Help Request Answers
2004 Cadillac CTS 3.6L No Start Key Stuck in Ignition VIN: 1G6DM57764
Cadillac was been worked on for other reasons other than the starting system. It first started when the key got stuck and I checked here and changed the battery like many members suggested. Once I changed the battery it started once and then when I went back o...
2003 Chevrolet Express 2500 6.0L Ignition, neutral safety, VIN: 1GBGG29U13
customer complaint had to cycle key off to start 4-5 times before engine would crank. scan vehicle no codes in history or current. After watching data for ign position found once key was in on position for more then 3-5 seconds line under P on indicator would ...
2004 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 1GCEC14T94
Hello everyone, thank you for your help in advance. Vehicle initially came in with complaint of CEL on solid. Scan revealed FCs P0441 "incorrect purge flow", P0440 "evap system fault", P0446 "evap vent control fault". Performed evap system test, all passed exc... Trouble codes: P0651 (Sensor reference voltage B open. 5Volts ref 2 circuit)
2009 Chevrolet Traverse LT 3.6L steering Angle Sensor
Hi Guys, Another shop called me to calibrate the steering angle sensor on this truck as they installed a steering rack and code C0710 appeared. I calibrated it (scan tool says successfully). All looks well, no lights on, no codes UNTIL you turn the wheel all ...
1997 GMC C1500 Sierra GT 4.3L air bag light on VIN: 1GTEC14W5V
Need to be sure air bag restraint system is working properly and air bag light remains off.
2001 GMC Sierra 2500 HD SLT 8.1L blend door VIN: 1GTHK23691
The story with this one is a few monthes back you could only have full heat or full cold nothing in between. Replaced interior ambient air temp sensor and all was well for a month or so. This vehicle has automatic controls(not dual climate though) and a few we...
2003 GMC Envoy SLT 4.2L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GKDT13SX3
when driven for 2 or more hours will clear up but gas mileage is at 15mpg cruise control some how seems to be affiliated with it is running at optimal temp suspect possible short but all connections seem good even ran injector cleaner no avail Trouble codes: P0301
2003 Oldsmobile Bravada 4.2L No Start, Starts WOT only VIN: 1GHDT13S13
Vehicle was running fine no issues, turned off when dropping son at day care, would not restart. Vehicle will not stumble or anything while cranking.. with WOT it will start. Only on first time after no start it stumbled and was flooded, once cleared it will ...
2009 Pontiac G3 Wave 1.6L Fuel System Lean VIN: KL2TX65E39
Hi guys i have a 2009 pontiac wave g3. Driver was complaining of increased fuel consumption, smell from exhaust and engine mil was on, we scanned the vehicle got a code p0171 fuel system too lean bank one. Checked online trouble shooter suggest possible fuel l...

Fixes & Summaries for GM
Fix/Summary Answers
2008 Chevrolet Uplander 3.9L pressure control solenoid VIN: 1GBDV13178
I received 5 replies. Most said tracing the U0073 high speed data communication failure would lead to the repair. When the pressure control solenoid is at zero amps, the is maximum line pressure. I have not found the problem, but this is a fleet vehicle and no...
2000 Pontiac Firebird 3.8L Engine Locked Up VIN: 2G2FS22K8Y
There were no determined causes for the damaged crank. I believe we had taken proper procedures in diagnosing the misfire. We had tested the obvious and came out clean. Just as someone had mentioned, we have no crystal ball to tell us the future nor could we h...
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