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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 16, 2014
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Open Help Requests for GM
Help Request Answers
2005 Chevrolet Impala 3.4L 1st gear VIN: 2G1WF52EX5
I am hoping this is old, ancient news for some General Motors guys here. This is my personal car and I have been busy and am simply hoping for a quick "poll" here since I know this is a common problem. In fact, a very significant percentage of 4T65E transmissi...
2007 Chevrolet Silverado 2500 HD Classic LS 6.6L gauges VIN: 1GCHK23D07
The dash lights and gauges work intermittantly. Alternator went out last week and one battery was bad so I replaced both batteries and the alternator. The problems were occuring before components were changed and today the truck came back again, only charging...
2001 GMC Jimmy SLE 4.3L Poor Idle Quality, Cuts out, Misfire VIN: 1GKDT13W51
Customers said problem occured after start up, no prior complaints, check engine light on runs rough at idle or under load, found codes PO122, PO155, PO300, PO440, PO452. Miss fire counts in history on #5 and #6 are 40 to 50k each other cylinders range from a ... Trouble codes: P0122, P0155, P0300, P0440, P0452
2002 GMC Sierra 1500 SL 4.3L No Start, Flooded VIN: 1GTEC14W42
Towed into shop quit while driving. Checked fuel and spark [ok] removed plugs [flooded] Replaced cap,rotor,wires and plugs. [engine still flooded and backfires] Checked injectors for leakage with gauge [did not drop] Still replaced with good used spider to rul...
2007 GMC C7500 Topkick C7C042 7.8L batterys VIN: 1GDL7C1B17
This truck does sit quite a lot so the small draw does kill the batteries. Have narrowed the source down to a 50 amp maxifuse located at right side of engine compartment at heater case area. The fuse is marked Ignition #4. Does anyone have a circuit diagram of...
2002 Oldsmobile Bravada 4.2L lf wheel VIN: 1GHDT13S62
This noise is not constant. Sometimes it is present anytime vehicle moves forward or reverse. Always more pronounced when turning right. Sometimes only makes noise when turning right. Have had left front down to wheel bearing twice in last week trying to find ...
2004 Pontiac GTO 5.7L Cuts out, Misfire, Reduced power VIN: 6G2VX12G94
This car came in with complaint of no engine power. We checked for codes and none were present but if you turn off the traction control system the car runs great with no problems. Turning on the traction control system it goes back into reduced power.We scanne...

Fixes & Summaries for GM
Fix/Summary Answers
1995 Chevrolet Camaro Z28 5.7L EBcm VIN: 2G1FP22P5S
The high mount brake lamp was out,I replaced the two # 194 bulbs and that took care of issue, thanks all for your help !!!
2007 Chevrolet Suburban 1500 Z71 5.3L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GNFK16377
Found the problem. Something happened to the exhaust lifter on cyl #3 like it went solid or something. When i performed the leak down test, i did it with the rockers off (thinking valve sealing issue) when i bolted the rockers back on i could see the rocker ... Trouble codes: P0300 (Cylinder Misfire).
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