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Prev Professional Automotive Repair Technical Discussions for June 11, 2007
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Open Help Requests for GM
Help Request Answers
1999 Buick Century Custom 3.1L cooling system VIN: 2G4WS52M3X
Ive got this car in here with a intermittant overheating promblem. this vehicle has been to six different shops before mine and has had alot of hands on it. it has a new radiator, waterpump, thermostat, & cooling fan relay #2. The first thing i checked was the...
1965 Cadillac deville 412CID starting ignition VIN: NO VIN
this car will only run with key in crank position. As soon as it starts and you release key, engine dies. I cannot find wiring diagrams for ballast resistor, or where it is located. Does this car use resistor wire or is the resistor in the ignition switch? Tha...
1993 Cadillac Fleetwood 5.7L Hesitation, MIL Lamp on, CODE 41 (NO CAM SIG) VIN: 1G6CB53B6M
hey guys car came in with no power at all on acceleration,once car got going it was mil lamp was on intially.did pull a code 53 (distributor signal interupt) we replaced the distributor because the pick up coil was losing signal,also the igntion module... Trouble codes: 41 (no cam signal)
1994 Cadillac Eldorado 4.6L Stall VIN: 1G6EL12Y4R
Vehicle runs rough when hot and will idle surge and stall. Does not respond to throttle while acting up, 5v reference will go to ground. Have replaced pcm, tps & pigtail, and ignition module. Have checked all pcm powers and grounds. Trouble codes: P0022, P0036, P0070, P0095
1999 Chevrolet Blazer 4.3L Transfer case VIN: 1GNDT13W6X
After replacing Transfer case module and Encoder I could commucate and receive data. Turn key on and you could her shift motor cycling like it was trying to find the right postion,after a few times all the lights for shift control would go off and service 4 WD...
1999 Chevrolet K1500 Suburban 5.7L Misfire, MIL Lamp on VIN: 1GNFK16R9X
I found lots of info in the archives on this problem, but can't put my finger on this one. I have a miss at idle on #3 and #8 and a miss under heavy load on #4 without #3 and #8 missing. Delco fuel pump was in stalled due to flow issues and serious lack of pow... Trouble codes: P0300 (Random cyl misfire)
2001 Chevrolet Cavalier LS 2.4L Poor Idle Quality VIN: 1G1JF52T41
This cavalier came in because after it warmed up it would not shift below 3500rpm. With scanner attached I took it for a ride. After about 10 minutes I noticed that the tps is climbing in voltage at idle. The sensor capped out at 2.0 volts and 42% throttle. I ...
2002 Chevrolet Blazer LS 4.3L rear wiper syst VIN: 1GNDT13W52
when you open the rear tailgate on this blazer, the windshield washer fluid drains out of the squirter? any ideas fellow sweathogs?
2003 Chevrolet Trailblazer North Face 4.2L fan clutch VIN: 1GNDT13S13
we have this trailblaser that came in with a whine noise and a check engine lite on, p1481 cooling fan speed problem. we checked for power & grounds. the ground wire was open so we repaired wire & cleared codes. code came back on 2nd start. we checked iatn arc...
1995 GMC Jimmy SL 4.3L Cuts out, Stall, Misfire VIN: 1GKDT13W0S
This vehicle is my daughter's. The vehicle will exhibit a miss or jerk while driving down the road. This only happens when the motor warms to operating temperature. It will miss several times and if you let off the accelerator, it will completely die. You can ...
2000 GMC Savana 2500 6.5L Cuts out, Stall VIN: F1Y1134640
Hello diesel techs, I have this 6.5L turbo that sometimes cuts out & stall while driving but starts up right away, the problem occurs very intermittently, it could be ok for two days & sometimes weeks. I replace fuel filter housing because of rusted sensors on...
2003 GMC Sierra 1500 HD SLE 6.0L Misfire VIN: 1GTGK13U03
Thank you in advance. I must be overlooking something. Truck came in with intermitant flashing mil, code p0300 random missfire. On road test at highway speed cylinders 1,5,6 & 8 rack up missfire data and missfire can be felt. No missfire at idle but it is not ... Trouble codes: P0300
2003 GMC Sierra 1500 HD SLE 6.0L MIL Lamp on VIN: 1GTGK13U53
Intermittent codes P0120 & P0220. Turning on check engine light and reduced power. Have cleaned two grounds on back of cylinder heads,chassis grounds, and also main block grounds. Have replaced throttle body and T.P.S. assembly, Throttle body module and APP pe... Trouble codes: P0120, P0220
2004 GMC W3500 Forward W3S042 4.8L Compressor VIN: J8DB4B1464
This was brought in as an add on to an insurance claim that was taken care of at a body shop but they don't do ac. Customer say AC worked fine until Vehicle damaged. It came in with no refrigerant. I did an evac and vacuum test and it passed vac test. Next I p...
1989 Oldsmobile Cutlass Ciera SL 3.3L Hesitation, Cuts out, Stall VIN: 2G3AM51N8K
have a 89 olds 3.3L no codes, fuel pressure OK, spark OK, scan data all normal.have checked TPS, MAF, CTS, Injectors, car starts normal and idles, BUT if you touch the gas peddle the car dies,you can feather it and get some rev but still dies ONLY in Park and ...
1995 Oldsmobile Cutlass Supreme 3.1L No Start VIN: 1G3WH52M25
car came in with a no start has fuel has spark but in don't believe it has injector pulse. sprayed starter fluid in tb and the car ran for a second. i have no cam or crank sensor signal. Trouble codes: 36 (cam sensor), 17 (crank sensor)
2003 Saturn Vue 2.2L Starter Kick Back VIN: 5GZCZ23D53
Hello everyone and thanks for the help on this one. We had this Vue come in 2 weeks ago for a junk battery and the customer requested we service it out for 100,000 miles. We installed the battery, installed Autolite platinum plugs etc and now(or at least she s...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Cadillac DeVille 4.6L SRS side airbags left/right VIN: 1G6KD52Y8V
Well it seems that GM has extended the warranty on this particular SRS system and there was an issue with the 'Side Impact Sensing Modules' in the front doors. Problem is intermittent and since the battery took a dive and we replaced it,the car has gone over a...
2003 Hummer H2 6.0L side steps VIN: 5GRCN23U04
Hi there, when i started tracing the wiring (it appears to be an aftermarket feature, or at least added after sale) i came accross two dodgy connectors under the door sill trims, soldered them instead and all is good now, thanks for the tips and it explains wh...
1991 Saturn SC 1.9L bleeding VIN: 1G8ZH1478M
finally got the abs to activate and bleeding was finnaly succesful
2001 Saturn L300 3.0L No Start, Cuts out, Stall, MIL Lamp on VIN: 1G8JW52R31
Hello and a heartfelt thanks to Brian,Bobby,David,and Tom. we checked the grounding buss at the left rear of the strut tower,and all was well , next checked the connector for the ceank sensor,and that was fine. next i checked the crank sensor, and found it to ... Trouble codes: P335, P0621, P2903, P1780, P08DB, P0917.
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