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Prev Professional Automotive Repair Technical Discussions for December 7, 2012
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Open Help Requests for GM
Help Request Answers
1992 Buick Park Avenue Ultra 3.8L no spark, no pulse VIN: 1G4CU5313N
Ok im stumped, please help. 1992 Buick Park avenue Ultra. I cannot get this thing to start for the life of me. My scanner is down along with my software... GREAT!. I have checked the ignition wires at the lock cylinder and ohm values read the same as key, alth...
2004 Cadillac Seville SLS 4.6L Misfire VIN: 1G6KS54Y44
At idle has an intermediate misfire on multiple cylinders. Stores the listed codes. Seems to run fine otherwise. Trouble codes: 171 (Lean bank 1), 174 (Lean bank 2), 300 (Misfire), 150 (o2 sensor fault b2s1)
2008 Chevrolet Trailblazer LT 4.2L tcm VIN: 1GNDT13S28
Hi guys and girls I am looking for some insight on this one it is a vary interment problem what will happen is the truck will shift hard like throw you shift hard I have not had it act up for me yet but did for another Tec . I have 2 codes set in the tcm U0073...
2011 Chevrolet Suburban 1500 LT 5.3L Poor Idle Quality VIN: 1GNSKJE35B
The vehicle was purchased new 11/2011. Ran fine till 7/2012 when it developed rough idle both cold and hot, but worse hot. Dealer said to try higher octance fuel. Did not help. Second dealer visit, told not to use E85 even though it is a Flexfuel vehicle. Used...
1998 Saturn SL1 1.9L No Start, Poor Idle Quality, Cuts out, MIL Lamp on VIN: 1G8ZH5289W
Hello fello techs out there! Need help on a lovely saturn just cant seem to fix. Came in the first time for a headgasket. We replaced the do to common crack inside of the casting. Engine ran well tell it fully warms up. Engine idle will surge only warm. We had... Trouble codes: P0201 (through P0204 Cyl. 1-4 injector circuit problem), P0141 (O2 heater circuit bank 1), P0600 (Serial communication link problem), P1215 (Ground Fault Detect/Quad Driver Output), P0606 (PCM internal processor fault), P1625 (PCM System Reset Or TCM Flash Fault)
2000 Saturn SL1 1.9L MIL Lamp on VIN: 1G8ZH5281Y
Vehicle referred to my shop after previous shop in an attempt to fix a P0172(System Rich)code replaced front oxygen sensor,rear catalytic convertor,(4) fuel injectors and reprogrammed PCM. P0172 still stored. I received vehicle with (2)codes: P0442(evap.small... Trouble codes: P0172

Fixes & Summaries for GM
Fix/Summary Answers
2003 Cadillac DeVille DHS 4.6L Heater controls VIN: 1G6KD54Y63
thanks to Steven [...], who sent the information I needed to complete the job, not too bad once you find out how things work.
1992 Pontiac Grand Prix SE 3.1L No Start VIN: 1G2WJ14TXN
First of all I want to thank everyone , I printed out all the suggestions and went through all armed and ready, went one at a time until I could prove this wasn't the problem.then I came to Timothy [...] reply, I knew I had a good crank sensor , so I went...
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