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Prev Professional Automotive Repair Technical Discussions for February 2, 2008
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Open Help Requests for GM
Help Request Answers
2005 Chevrolet Impala 3.4L Drive-axles VIN: 2G1WF52E35
as dumb as this may sound i can not find the torque for front wheel bearings.and of course 4 parts suppliers are worthless.and another thing,why are these bearings junk?i have seen many gm cars and dodge dakotas eat these up every 25000 miles .and yes we do to...
2006 Chevrolet Silverado 1500 LT 5.3L Controller VIN: 2GCEC19Z66
Well this is what I get for trying to cheat. I have an 06 silverado that did not come with TPMS and I want it for all the interstate travel that I do. By brother works for cadillac and lent be the tech 2. He claims you can go into the tpms menu under chassis a...
1995 Oldsmobile 98 Regency Elite 3.8L No Start VIN: 1G3CX52K5S
I'm at my wit's end on this one. This car was sitting for 2.5 years with a bad transmission. We towed it in with a rough running engine. Some mouse wiring damage not affecting the ignition/fuel control systems. We replaced the transmission and when we started ...
1989 Pontiac Firebird 2.8L Excessive Emissions, MIL Lamp on VIN: 1G2FS21S7K
Starts good,runs great until it goes into closed loop.Thats when both long&short term fuel trims will drop from 126 to 100.Light comes on,sets code 45,system goes back into open loop&the whole process starts all over again.Don't know why,but vehicle also has a... Trouble codes: 45 (system rich)
1997 Pontiac Sunfire GT 2.4L Hesitation, Cuts out, Misfire VIN: 1G2JD12TXV
Here goes nothing, again. Little 97 Sunfire GT, 2.4 L, with a maual 5 speed. Boss' kids car. Arrgh. Started complaining of a heavy misfire after upshifting coming off the expressway. He was effectively lugging the engine and the result was a misfire that felt ...
1999 Pontiac Grand Prix GTP 3.8L Transmittion VIN: 1G2WR5216X
Chech engine light on

Fixes & Summaries for GM
Fix/Summary Answers
2001 GMC Sierra 2500 HD SL 8.1L MIL Lamp on, Reduced Engine Power VIN: 1GTHK23G11
As I mentioned, this was a job that a fellow tech was having problems with. As many suggested the ground circuit was checked and was working fine. The wires going to the throttle body area also did not prove to have any problems and the throttle plate was alre... Trouble codes: P1515 (Commanded Actual Throttle Positions Out of Range).
2006 Hummer H2 6.0L Hesitation, Surge, Poor Fuel Economy VIN: 5GRGN23466
Thank you William from Texas . Did wiggle test at wiring harness that runs down both valve covers that feeds injectors & coils found on the scanner that the # 8 would misfire and #7 when the connection on 8 would be wiggled for every misfire cycle #8 would ... Trouble codes: U0107 (lost comm with throttle actuator), P0200 (injector control circuit), P0300 (engine misfire drtected), P1626 (theft deterrent enable signal not received).
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