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Prev Professional Automotive Repair Technical Discussions for May 6, 2013
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Open Help Requests for GM
Help Request Answers
1995 Buick Park Avenue 3.8L engine missfire VIN: 1G4CW52K6S
after look at car recommended replace fuel filter and PCV and clean very dirty MAF car started rough then smoothed out took out for test drive stumbled on take off then suddenly ran great returned car to customer 2 hours later customer call and said the car do...
1991 Chevrolet Camaro RS 3.1L No Start, Stall, MIL Lamp on VIN: 1G1FP33T9M
Tow in-- Camaro usually starts but will not rev up. Usually no service engine soon light or security light flashing. Scan for codes right off trailer--no codes, Scan data don't see anything out of normal. Suspect fuel pump. Install MAC pressure checker find in... Trouble codes: 46 (Vehicle security system)
1996 Chevrolet S10 2.2L Cyl #4 VIN: 1GCCS1941T
Checked all 4 cyl with timing light. Cyl 1, 2, 3 have double spark output. Cyl 4 has only waste spark firing Could this be the module or ECU? It seems the coil is fine since 2 is firing correctly. Any input. Thanks
2003 Chevrolet Venture LS 3.4L MIL Lamp on VIN: 1GNDX03E93
hi folks. i have this 03 venture that is driving me nuts. its setting a p1374 code everytime you crank it and let it run for about 10 seconds. Normally for me the cause of this code is a cracked ignition coil causing an issue with the ignition module. in this ... Trouble codes: P1374
2002 GMC Envoy SLE 4.2L Misfire VIN: 1GKDT13SX2
Hi all and thanks in advance.Vehicle came in with a cyl 2 misfire and I replaced the coil.It was gone for a day and returned with same code.Insted of replacing coil again,I switched #2 and #3 coils and it still throws a #2 misfire at idle only.I have no scope ... Trouble codes: P0302 (Cylinder 2 misfire)
2003 GMC Sierra 1500 SLE 4.8L dead battery VIN: 1GTGC13U23
hello to all the techs out there. this vehicle would have a dead battery after sitting overnite, but was erratic as to when it would occur.this went on for a couple weeks when it was brought to me. customer was diligent about making sure nothing was left on. v...
1999 Pontiac Sunfire SE 2.2L Drl
Help!! Drl does not work, headlight high and low beams all work normally and the high beam indicator is ALLWAYS on. If I ground circuit 592 at the relay with the relay in, the drl will work, however if I ground the signal wire at the instrument cluster they wi...

Fixes & Summaries for GM
Fix/Summary Answers
2005 Chevrolet Avalanche 1500 5.3L Hesitation VIN: 3GNEC12TX5
Customer has had the truck back for 2 weeks now with no issues so i am going to call this one a fix. I just wish I could say exactly what we did to fix it. We ended up checking and cleaning every connector and ground we could find .We also disconnected the rem...
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