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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 9, 2013
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Open Help Requests for GM
Help Request Answers
2008 Cadillac SRX 3.6L Misfire VIN: 1GYEE63758
Car came in about 2.5 months ago for LOF and MIL on. Checked codes and had P0300 and P0305 with no apparent misfire. I cleared the codes and told customer to come back if light came back on. 1 month went by and they came back with the car and the same codes bu... Trouble codes: P0300 (Random Misfire), P0305 (Cylinder 5 misfire)
2004 Chevrolet Cavalier 2.2L tach, speedo,temp,fuel
Replaced clutch assembly, now all the gauges are not working. Checked for ground wires missing, I found None. Checked All fuses, all tested good. I need help on this car from someone who have been through this problem before. I used a computer safe test light,...
2010 Chevrolet Express 4500 6.6L def quality VIN: 1GB9G5AL3A
looking for test information on system Trouble codes: P22A1
2010 GMC Terrain SLE 2.4L Gauges, no crank VIN: 2CTALDEWXA
When vehicle wouldn't crank I took off the engine plastic cover to inspect anything I could have damaged or broken during manifold repair. I saw no damaged/worn or loose wires or connections. The vehicle would crank and start with the cover off. If I put the c...

Fixes & Summaries for GM
Fix/Summary Answers
1999 Chevrolet Silverado 2500 6.0L Poor Idle Quality VIN: 1GCFC29U6X
Thanks for all the replies all of them good. Just ran out of time with this one as the owner is moving to Colorado and leaving this weekend. Everything I did to it has helped, the idle is only slightly rough and I understand most 6.0's are a little rough idl...
2005 Chevrolet Malibu 2.2L Cuts out, Misfire VIN: 1G1ZS52F85
The car had originally bad spark plugs. I replaced them with brand new ones expecting they would be good (NGK 5019) Had one "dud". I did a cylinder balance test and no.1 was not doing much at all. so just for the hell of it moved the plugs around and misfire m... Trouble codes: P0300 (Multiple random missfire).
2008 Chevrolet Silverado 3500 HD LT 6.6L no crank VIN: 1GBJK39628
ok will try and keep it short.1)the reason the ecm would not flash is due to the fact that the tech was unplugging the tech2 from the pc, the 2008 file is too bit suggested he use it as a pass thru,flash solved. truck starts and runs, find ebcm plug damaged, r...
2011 Chevrolet Traverse LS 3.6L lite VIN: 1GNKVEED6B
sent vehicle to a gm dealer suspect bcm problem but donot have equipment to reprogram them thanks for all the sugestions
2004 GMC Sierra 3500 6.0L ABS module VIN: 1GDJK34U04
This vehicle is finally fixed. As Daniel stated I went back and went over the whole harness again check for any breaks in the loom or spots where it could of rubbed threw. The brakes lines have been replaced so I check there and made sure none of the new brake...
2006 Pontiac Vibe 1.8L Misfire VIN: 5Y2SL65836
Sorry I took so long.That IGF was the issue. It has a 5 volt all the time and gets pulled to ground on every spark event.Iwasnt getting the 5 v reference to the #1 coil.I was getting spark but no inj. pulse the 5v ref. wire was broken where it goes thru the fi... Trouble codes: P0351.
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