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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 27, 2008
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Open Help Requests for GM
Help Request Answers
1998 Chevrolet Astro 4.3L Hesitation, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNEL19W1W
Under light accel about 20-30kph engine will hesitate almost always. This problem seems to be at a particular throttle position. For this reason we have chaged both TPS and MAF, with no change. Fuel pressure is at 53@ idle and 58@ snap throttle. I have not exp... Trouble codes: P0300 (Random misfire detected)
2002 Oldsmobile Bravada 4.2L vss VIN: IGHDT3SX22
Vehicle came code P0502 and U1016 in customer states while driving both SIR and ABS lights came on,shortly after transmission would not shift. Scanned all modules with Tech2 checked Vss input signal at Pcm and all other modules show no VSS output,have nice wav...

Fixes & Summaries for GM
Fix/Summary Answers
2002 Cadillac Seville STS 4.6L Electronic VIN: 1G6KY54992
Thanks for the replys. We are going to fix the brakes right. got pads ordered from GM cost on the ft are about 70.00 and the rear cost is 100.00. Glad to know there are other northstar motors with the oil useage problem. I will ck out the tsb # in one...
2001 Chevrolet Impala 3.4L No Start, Cuts out, Stall VIN: 2GIWF52E12
thanks to all that responded. the problem came up to be the wiring connection - bcm connector. the wire in the connector was loose and corroded in the terminal on the harness side. clean and fix the wire and all is well. thanks again for the help.
2002 Chevrolet Venture LS 3.4L Hesitation, Cuts out VIN: 1GNDX03E52
Have tried everything you guys posted with nothing fixing the problem. The customer took the van and has been driving it. She called and said the problem has almost fixed itself. She has put over 500 miles on it and the van has stopped popping and shutting off...
1989 Oldsmobile Cutlass Ciera 3.3L Cuts out, Misfire, MIL Lamp on VIN: 2G3AJ51N3K
After replacing the est and bypass wires from the ignition module to the ecm the vehicle has not quit or had trouble starting for two weeks , somewhere inside the harness there must be an intermittent open circuit or ground causing the problem . Thanks for the... Trouble codes: 42 (Electronic Spark Timing).
2001 Pontiac Montana 3.4L No Start VIN: 1GMDX03E11
Sorry for the wait,this one was a stumper.Thank you for all your ideas.I should have been more clear about the key cycle and my maf pid.It would change every time i cycle the key from 312 to 1.94 gps.I pulled open the harness and found under the air box wires ...
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