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Prev Professional Automotive Repair Technical Discussions for August 25, 2006
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Open Help Requests for GM
Help Request Answers
1989 Buick Regal Custom 3.1L a/c VIN: 2G4WD11T5K
no codes found. burnt out compressor fuse, replace with 20 amp, wont blow the fuse, scanned, found no call for a/c from computer, direct pwr to compressor works, direct pwr to fan, works fine.replaced relays still same, have good pressures no leaks.
1999 Buick Park Avenue Ultra 3.8L steering wheel VIN: 1G4CU5216X
thanks in advance to all those who respond. i'm in need of some help on this car. the problem is a vibration in the steering wheel at higher speeds. 60mph on up, the higher the speed the more the vibration. originally i found the bad tie rod end, replaced it a...
2000 Buick Century Custom 3.1L starter VIN: 2G4WS52J2Y
this vehicle will engage the starter with the key turned to the run position, in park or drive. the ignition has to be turned off to kill power to the starter.
1989 Chevrolet G20 Beauville 5.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GCEG25HXK
This is My service Vehicle I need to get it running ASAP It's been surging at idle for about a week, yesterday it kept stalling out. The only thing that comes up for the CEL is #33- map sensor high voltage or Random misfire. I have replaced the map sensor,... Trouble codes: 33 (Map Sensor High Voltage Or Misfire Condition)
1992 Chevrolet C2500 Cheyenne 5.7L Poor Idle Quality, Surge, MIL Lamp on VIN: 1GCGC24K8N
Hello all and thanks in advance for any help I can get. The problem is you drive this truck and it drives fine then all of a sudden it starts loosing power like you are running out of gas. Then it will pick up and run fine again does this for about 2 or 3 mile... Trouble codes: 45 (rich condition)
1995 Chevrolet K3500 6.5L timing VIN: 1GBHK33F7S
I replaced the injector pump on this truck, first one I have done on a 6.5 chevy. It starts & runs, but I need to set the injection timing, and my snapon scanner says it has to be done at the dealer. Is there anything I can do, or do I have to hand it over to ...
1995 Chevrolet Lumina APV 3.1L starting VIN: 1GNDU06D5S
cant get it to start checked mechaniocal timing spark and is make me
1995 Chevrolet C1500 Cheyenne 5.7L slave cylinder &clutch master cylinder VIN: 2GCEC19K1S
hello,guys. problem : have been trying to bleed this system many times at the slave cylinder with another tech at the clutch pedal( pumping), until we can shift thru all gears with out clashing or binding.but every time we feel is time to test drive & drive tr...
1999 Chevrolet C1500 Suburban 5.7L No Start, Poor Idle Quality, Stall, Misfire VIN: 3GNEC16R7X
unit starts and runs fine most of the time has had new filters, distributor cap, rotor, plugs, fuel pressure checks good (62psi ko, 56psi wot) ONLY cranks, hits, stalls, and pops/backfires at intake on first start after parked all nite with wet or high humidit... Trouble codes: 1626 (theft enable signal lost)
2000 Chevrolet Express 3500 LS 5.7L No Start, Poor Idle Quality, Stall, MIL Lamp on VIN: 1GBJG31RXY
Hi guys,THANKS IN ADVANCE FOR ANY HELP. We have just started working on this fleet vehicle. It was brought to us as a cranks no start. found vehicle had no fuel pressure. replaced pump and filter. Also did complete tune. Truck left then was brought back with a... Trouble codes: 1509B (no response from iac/idle too high)
2000 Chevrolet Blazer LS 4.3L Hesitation, Cuts out, Stall VIN: 1GNDT13N0Y
Vehicle runs poorly, cuts out, stalls, hesitates-ONLY WHEN COLD. Checked fuel pressure. Found low,50-55 psi. But runs well when warmed up. When cold, will pop through intake, spudder and stall. Removed exhaust to make sure cat wasn't plugged. Any help or ideas...
2002 Chevrolet Silverado 2500 6.0L all shifts VIN: 1GCHK24U72
I recently rebuilt this 4l80e trans due to no forward or reverse when hot. When I disassembled it I found a broken spring on the 3rd accumulator piston. Has anyone seen this? I went ahead and replaced the broken spring and all steels, fibers, pistons and seals...
1998 GMC Yukon SLE 5.7L Excessive Emissions, MIL Lamp on VIN: 1GKEC13R7W
This vehicle came in twice with freeze frame data for p0172 and P0175 rich bank 1 and rich bank 2 No other codes no missfires recorded. The light had went off. The Freeze frame data showed a long term fuel trim of 113. The code should set at 100. I cleaned the... Trouble codes: P0172, P0175
2003 GMC C4500 Topkick C4C042 6.6L Speedo VIN: 1GDE4E1143
The complaint is after replacing Alternator the speedo reads too fast. The truck will only go 45 mph because the speedo is reading 85 mph and the PCM cuts out the fuel. From what I can gather because it has an Allison trans the system gets the signal from the ...
1989 Oldsmobile Delta 88 Royale 3.8L Cuts out, Stall, MIL Lamp on VIN: 1G3HN54C8K
hello,thanks for the help. this car come to the shop with a bad harmonic balancer. we replaced it. under accel car will stall & dies. will idle fine. if you slowly accel it does fine but if you snap throttle it will stall. fuel pressure o.k. good spark also. r... Trouble codes: 13 (o2 sensor), 22 (tps volts low)
1995 Pontiac Bonneville SE 3.8L MIL Lamp on VIN: 1G2HX52K0S
Greetings toall this pontiac sets quad driver codes.I followed the flow charts pertaing to each code and I came up with no diagnosis,and after clearing the check engine light the light comes on after a few seconds and stays on.The problem is there but I cant s... Trouble codes: P1670, P1640
1994 Saturn SC2 1.9L rf headlight VIN: 1G8ZH1571R
the right front headlight will not work the fuse is good there is power to the green and tan wires the orange wire is dead no power or ground tryed new light to no help cannot find junction block wires run over radiator to under left front fender well any help...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Cadillac Seville SLS 4.6L Cuts out, Stall VIN: 1G6KS52Y4V
the vehicle is not fixed yet. emails helped give some direction, but nothing changed dramatically. I changed the tps sensor to get throttle angle back to 0 instead of -2.7 degrees. Adjusted minimum air flow to 450 rpm. car still stalls and then restarts right ... Trouble codes: 1599 (engine stall or near stall).
1997 Cadillac Seville SLS 4.6L Mechanical VIN: 1G6KS52Y1V
the orfice did go in the evaporator suction side.someone had looked at this vehicle before and must have removed it thus my confusion on where it should go.thanks for all the help
1997 Chevrolet Blazer 4.3L Cuts out, Stall VIN: 1GNDT13W7V
Thank you for the advice. I replaced the ignition switch and vehicle seems to be cured. I could not see any physical damage to the wiring or get this truck to act up for me but it has been gone for a week and no complaints from my customer. Thanks again
2000 Chevrolet Impala 3.4L No Start VIN: 2G1WF55K8Y
Customer did not want to sink any more money into this. Who blames hime, I wouldnt sink a nickel into an impala. I got a lot of replies saying it was a security problem and it probably was, but customer was too cheap. Jumped the starter when the customer cam a... Trouble codes: P1825 (Mode switch).
1997 GMC Savana 3500 4.3L No Start VIN: 1GDGG31WXV
Hi again, Well apparently I should become a Wal-Mart door greeter because I have know clue what I'm doing on cars, hehe. It turned out to be 5 dead fuel injectors; they all had the same resistance as the new ones and I still never had any waveform from the P...
2004 GMC Envoy SLE 4.2L speedometer VIN: 1GKDT13S84
customer decided to put up with it. but with the replies i got i'm sure it was a bad cluster. these things have been electrical nightmares. thanks gm and thanks to all who replied.
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