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Prev Professional Automotive Repair Technical Discussions for February 19, 2013
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Open Help Requests for GM
Help Request Answers
2001 Cadillac DeVille 4.6L Battery goes dead after sitting for 2-3 days VIN: 1G6KD54Y81
I have this Cadillac that after sitting for a period of 2-3 days. The battery will go dead. I have 110 milliamp draw on it and everything that I can find for information, It should only have a max 80-90 milliamps and I should/would like to see around 50 millia...
1990 Chevrolet C1500 454 SS 7.4L Cuts out VIN: 1GCDC14NXL
This truck entered my shop with a complaint of an intermittent misfire. When I started it in the morning I could smell antifreeze. When I did a block check I found HC in the cooling system. We pulled the heads and sent them to the machine shop where 1 was foun...
2001 Chevrolet Blazer LS 4.3L Oil Filter Blows seal and balloons at start up VIN: 1GNDT13W81
I took over this project about a week ago. First assuming that it needed a fuel pump at 114,000 miles?? Second i checked plugs, wires, cap, and rotor. Found that the PLugs, cap, Rotor, and wires were all factory GM original and way over due for replacement. SO...
2002 Chevrolet Camaro Z28 SS 5.7L heated O2 montior VIN: 2G1FP22G12
Car has had some aftermarket upgrades SLP performance pacage we believe! The Cat montior or heated Oxygen montior will not complete. any suggestion are greatly appreciated
2004 Chevrolet Aveo LS 1.6L Coolant VIN: KL1TJ52654
All the symptoms seem to indicate a failed cylinder head gasket, but the results are not concrete enough to indicate where the coolant is going. Combustion gases in the coolant should turn the chemical yellow (the tester is new). It remains blue. The pressure ...
2006 Chevrolet Malibu LT 3.5L instrument lighting (dash) VIN: 1G1ZT51856
This vehicle came into shop with broken light switch/ turn signal. replaced switch, everything good when key was off, finished install started car up and dash lights went out. turned ign off dash lights came on. I have tested or replaced fuses and relays, ever...
2007 Chevrolet Trailblazer LT 4.2L cooling fan system VIN: 1GNDT13S77
customer came in with check engine light on and sometimes temperature guage would rise above the normal zone at idle. we replaced cooling fan clutch assy and wiring harness.. no more over heating problem but randomly when starting vehicle it will set a p0480 c...
2007 GMC Acadia SLE 3.6L 4-5 shift
replaced and reprogrammed TCM thanks all for your halp
2002 Pontiac Aztek 3.4L heat VIN: 3G7DA03EX2
Has poor heat at highway speeds in town heat is better but still not hot . Heat is better with recirc on .
2004 Pontiac Grand Prix GT1 3.8L Cuts out VIN: 2G2WP52204
Hello all & thanks in advance !. I have a 2004 Grand Prix GT. Engine starts and runs fine for about 10 minutes. On acceleration the engine cuts, sometimes cycling on and off like someone is turning the ignition key on and off. After a few of these cycles the e...
2001 Saturn SC2 1.9L Excessive Emissions, No Start, Poor Fuel Economy VIN: 1G8ZY127X1
Car towed in, no start. Customer says started running rough after highway cruise, limped home, stalled backing into parking spot, now won't run. Found extreme case of flooding, looking in cylinders, raw fuel laying on top of pistons. Scan computer, fuel trim -...
2003 Saturn Vue 3.0L left wander VIN: 5GZCZ63B23
This vehicle was brought to us from one of are other shops. They had changed oil and rotated tires. After rotation the vehicle drifts to the left. We checked vehicle alignment specificatiions and found rear and front toe out of specifications. Reset vehicle to...
2003 Saturn Vue 2.2L MIL Lamp on, Dtc p1336 VIN: 5GZCZ23DX3
After replacing the PCM and flashing with a Cardaq-m I have a check engine light and a DTC P1336 which indicates the crank position sensor relearn is needed. I know this has to be done with a PCM replacement but my snap on scanner (solus pro) does not have thi...
2008 Saturn Vue XE 3.5L timing cover housing VIN: 3GSDL43N58
Thanks for looking at this, There is a coolant leak at the intersection of the rear head, block, timing cover area. Has anyone had one of these apart before? I am thinking it is the wonderful GM steel/elastomer gasket on the timing cover housing leaking, but i...

Fixes & Summaries for GM
Fix/Summary Answers
2005 Chevrolet Avalanche 1500 LS 5.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GNEC12Z05
i NEED TO GET THAT VEHICLE BACK IN HERE TO CHECK THE CAM YOU GUYS OVERWHELMINGLY POINTED OUT AT THE CAMSHAFT AS THE MOST LIKELY TO BE THE CULPRIT.I swapped coils and it still is #2 and compression is low across the board so camshaft wouled make sense. I'll try... Trouble codes: P0300.
2007 GMC Canyon SLT 3.7L MIL Lamp on VIN: 1GTDT13E37
First I would like to thank everybody that replied to my request we were able to repair the vehicle yesterday it was as most people though a vacuum leak. I did not state it on my original post but we had smoked the intake first and that helped us to diagnose t... Trouble codes: P0171 (Fuel trim system lean), P0420 (Catalyst system low efficiency Bank 1).
1999 Saturn SL2 1.9L Alarm system VIN: 1G8ZJ5274X
thank you all! after reading your suggestions I finally found how to turn the alarm off through RKE module by jumping pins 4 and 8 on the DLC and rotating the key 3 times wich is the setting that turns the alarm off but the key fob still works. Still not sure ...
2004 Saturn Ion-2 2.2L Stall, Misfire, MIL Lamp on VIN: 1G8AJ52F44
thanks for the help checked injector harness looked good engine has 160.000 miles on it it was a timing issue she decline to fix. thanks for all info. learned a lot. mark michigan Trouble codes: P1599 (Engine stall), P0341 (Cmp signal), P0300 (Random misfire).
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