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Prev Professional Automotive Repair Technical Discussions for April 11, 2008
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Open Help Requests for GM
Help Request Answers
1995 Buick Regal 3.8L Surge, Stall, MIL Lamp on VIN: 2G4WB12L15
heres the rest of the codes p0571 trac control pwm link, p1629 , passkey ll crank error,1630 system volts high/low .these are all in the history its charging @ 14.6 .there have been other codes that come and go .The car starts good runs mostly good .It will su... Trouble codes: P0113, P0118, P0137, P0140, P0341, P0502
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1995 Chevrolet Blazer 4.3L Hesitation, Surge, Cuts out, Misfire VIN: 1GNDT13W6S
hesitation/surge upon initial accel, o2 sensors drop to below 30 & when jumps up to 800 momentarily runs ok - this happens a couple times a second - runs good under wot - had history map & egr codes- disconnected egr & still had same concern. unplugged #1 o2 t...
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2002 Chevrolet Astro 4.3L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 1GCDM19XX2
Vehicle will not start up again...has spark, fuel pressure good. When cold, will try to start, rough idle and dies immediately. Only code comes up is PO101...tried a reman. MAF , problem still same. tried wiggling and jiggling wires,no good...sure some of you ... Trouble codes: P0101
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2003 Chevrolet Corvette 50th Anniversary Edition 5.7L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1G1YY32GX3
I was brought into this repair by my brother who is a GM tech. with about 2 decades of experience. The car can be made to misfire in the bay by power braking. Power balance test revealed cyl. #2 was a consistent misfire. The misfire starts at about 1400 RPM. A... Trouble codes: P0300 (Random Misfire)
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1989 GMC V3500 7.4L high idle VIN: 1GTHV33N7K
If you start vehicle and let sit and idle everything is ok, runs normal. Put vehicle in drive or reverse and the iac goe to full open 140-145. It takes a few seconds to climb to full open. this action puts the idle at 1700 rpm when put back into park. some tim...
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1996 GMC Sonoma SLE 4.3L Surge, Cuts out, Misfire, MIL Lamp on VIN: 1GTCS19W9T
Well heres another one. Truck came in with complaint of no power missing,ect. Plugs ,cap,rotor had been previously changed. Owner also says he has had to replace several coil wires and the injectors. I found the converter to be totally fallen apart inside and ... Trouble codes: P0147
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1987 Oldsmobile 98 Regency Brougham 3.8L Cuts out VIN: 1G3CW5131H
Hello everyone. I have been messing with this vehicle whenever. When you start it, for the first time of the day, it will run 2 minutes, 5 minutes, whatever, it will shut off immediately, then you can restart it and it runs good. It doesnt idle the smoothest. ...
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1998 Pontiac Grand Am SE 2.4L oil leaks VIN: 1G2NE52T4W
This 2.4 has leak around timing cover and has leaks coming from cam housing, and have off waiting for oem seals, looking for tips on job? Are lifters marked for exhaust and intake and other things I need to know?
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Fixes & Summaries for GM
Fix/Summary Answers
1990 Chevrolet C1500 Cheyenne 4.3L Hesitation, Stall VIN: 1GCDC14Z4L
THANK TO ALL TECH. WHO REPLIED TO MY TROUBLE. I FINALLY TAKE CARE THE PROBLEM. EVERYTHING SEEN TO BE NORMAL BUT THE FUEL PUMP PSI IS LOW, ALL OF YOU ARE RIGHT. I THINK IT LOW ORIGINAL BUT I RELY ON ALL DATA TOO MUCH. ON ALL DATA, IT SAID 9-14PSI. I HAD 9PSI WH...
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1995 Chevrolet K2500 Suburban 6.5L Stall VIN: 1GNGK26FXS
Thanks for all of the help guys. We found out from the customer after we started to diagnose the vehicle that it was actually covered under another shops warranty so..we never did find out what the real problem was. Maybe we will find out from the customer wha... Trouble codes: 0017 (high resolution circuit), 0018 (cam reference pulse), 0035 (injector pulse width short), 0065 (accelerator position 3 sensor range fault).
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1995 Chevrolet Caprice Classic 5.7L Misfire, MISS FIRES IN DRIVE VIN: 1G1BL52P9S
Thanks to all.I change the comp and the engine stoped poping.Then found the #3 was not firing.Changed the wire and still no spark coming out of the dis.For the guy who said why the job wasn't done properly.This engine was put together by a so called certified ...
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1997 Chevrolet Blazer 4.3L Fuel gauge VIN: 1GNDT13W6V
Thanks for all the information that I received. After cleaning all grounds in engine compartment and the one in the rear D-pillar area, installing good solid battery and tracing circuits down and checking connections I was unable to cause a change in the probl...
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2001 Chevrolet Venture LS 3.4L coolant temperature gauge VIN: 1GNDX03E41
well it seems these cars have very inaccurate gauges. we have had several since and they all act erratic. i am closing repair. thank you all for replying it is nice to have you all on my side. T...
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2002 Chevrolet Impala 3.4L Starter signal VIN: 2G1WF55E82
After more testing. I found there were no codes in the BCM but It was not talking to the PCM. Replaced and programmed new BCM and all is great. Thanks for all the help with this problem.
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2002 Chevrolet Venture LS 3.4L Cooling Systems VIN: 1GNDV03E62
Thank you to all who replied. Yes most of you were right on. There is no way for a intake manifold gasket to pass coolant straight into the combution chamber. It has to either be a head gasket or head. Thankfully for the customer it was just the gasket. After ...
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