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Prev Professional Automotive Repair Technical Discussions for April 10, 2009
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Open Help Requests for GM
Help Request Answers
1990 Buick Riviera Luxury 3.8L Bogs light throttle* VIN: 1G4EZ13C2L
OK here we go: normal operating temp, engine will bog down like it's getting no/low fuel at a 15-50%ish throttle opening. Can't duplicate on shop floor, must be in motion. Floor it and no trouble at all, runs like a champ. I have a "tester ECM for this vehicle...
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1995 Buick Roadmaster 5.7L cooling fans VIN: 1G4BN52P2S
This vehicle came to me with an over heating problem, it has been to 3 different shops and more than 1000 dollars later stilll the same. The coolant fans dont run when hot, at 218 degrees, they dont turn on but do turn on with AC and engine runs at 206 more or...
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2001 Cadillac Seville SLS 4.6L TCC circuit VIN: 1G6KS54Y71
Hi folks - I have a seville SLS here that is about to undergo it's second replacement of the TCC solenoid in 6 months. The car is driven on freeway most (90% of the time). First time it came in it is described in repair history. Car did great until about 1 wee...
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1995 Chevrolet K1500 Cheyenne 5.7L Poor Idle Quality, Cuts out VIN: 1GCEK19K3S
Vehicle came in running very rich, o2s maxed out at .9 v plugs excessively carbon fouled. Scanned engine data, no codes, injectors have bpw of 3.0ms, iac stuck at about 80 at idle, tps ok and map sensor ok, fuel pressure ok @ 14 psi. Suspected frozen iac and s...
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1995 Chevrolet Corvette 5.7L No Start VIN: 1G1YY22P2S
Hey allm I need some opinons on this vet. Came in on a hook,cranks, dosenst run. Nocodes pressent. Has good fuel pressure, and spark. No injector pulse. Injectors have power. ECM is not grounding them. I tested the low and high reference signals at the compute...
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1998 Chevrolet C2500 Cheyenne 5.7L pass key VIN: 1GCGC29ROW
this system has no chip in key not finding info on this system. can it be bypassed? customer request to bypass!
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1999 Chevrolet Tahoe 5.7L Hesitation, Surge, Cuts out VIN: 3GNEK18R1X
I have this 1999 Chevy Tahoe, 4x4, 5.7L, csi vortec, when the engine is cold will ,first start up,surge, hesitated and misfire under load for a few minites then clear up and run good. When it is acting up, I can add propane to intake, and engine clears up and ...
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2000 Chevrolet Impala LS 3.8L Cuts out, Stall VIN: 2G1WH55K0Y
after warm up vehicle stalhs and doesnot want to restart. when vehicle is cold runs perfact for about 10 minutes. when scanning with the brick we see no desired idle, no TPS percentage we do have TPS voltage all other readings look good. We have good spark, ev... Trouble codes: P0300
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2002 Chevrolet Silverado 1500 5.3L 4x4 VIN: 1GCEK19V62
Front driveshaft is beeing turned all the time by the transfercase. have pulled off motor, and moved shifter lug with a wrench still will try to turn the front yoke. Have dissasembled t-case and can not find anything wrong, fork appears good. clutches all look...
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2002 Chevrolet Avalanche 1500 5.3L information center VIN: 3GNEK13T22
we got truck into shop with information center not working properly. gas gauge, sercuity and charging light on shifter light not on. no comucation with bcm or ecm will not let us into anything. truck runs and drives great. we checked all grounds and powers all...
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2003 Chevrolet Silverado 2500 6.0L pcm VIN: 1GTGC24U43
no power to purple wire,no fuel,no fire,no communication basics covered im thinking pcm ??
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2007 Chevrolet Impala LT 3.9L tpms system VIN: 2G1WC58R67
Hi to all. This car first came to our shop 10 / 2008 with 47000 miles. The car needed new tires. They were original worn out and leaking air. The customer at that time told us that the tire pressure system had been acting up and displaying the dash message tha...
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1984 Oldsmobile Cutlass Ciera Cruiser LS 2.5L No Start VIN: 1G3AJ27R3E
this car will start about 80% of the time when it wont start the scanner reads rpm stuck anywhere between 1000-6573 fixed and not when cranking just with key on. also the ecm keeps 5 volts on the est wire from the dist when it wont start as soon as the voltage...
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1996 Oldsmobile REGENCY 3.8L elec cooling fans VIN: 1G3CX52K67
temp gauge normal operation =started to warm up and noticed gauge higher than normal as pulling out of drive on sunday morning but returned to normal and remained normal rest of driving that day. started cold next day and raised hood-observed temp rise to over...
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2005 Pontiac Sunfire 2.2L head,timinchain VIN: 3G2JB12F55
i don't have a new enough book for this.need the procedure for the timing chain removal and torque specs for head bolts. i see what looks like a chain tensioner allen screw on the outside of the cover but not sure if i need to loosen it first or what the order...
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2003 Saturn Vue 2.2L Hard Start VIN: 5GZCZ23D53
Hello everyone and thanks for the help on this one. This vehicle was towed in because the customer could not get it to start. She said she had been having problems starting it in the days prior. She said she would have to crank on it quite a bit to get it goin...
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Fixes & Summaries for GM
Fix/Summary Answers
2002 Buick LeSabre Custom 3.8L dic VIN: 1G4HP54K82
I have not been able to get this car back in. It is very intermitant and the customer must not be too concerned about it. Yet! If she ever brings it in for repair I will post a follow up. Thanks, Mike
4
1997 Cadillac DeVille 4.6L wont start VIN: 12G6KD52Y3
I replaced the key cylinder assy which had bare wires in the column and also found a blown fuse in the pcm one of the b+ and it starts. Knowing the trick about reading the codes in the dash sure is handy! Thanks to everyone
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1991 Chevrolet Camaro RS 5.0L Poor Idle Quality, Cuts out, Stall
Hello EVERYONE,EVERYTIME I WORKED ON THIS CAR IT SEEMED TO RUN WORSE AND THAT IS WHEN I NOTICED ALL THE SMOKE COMING OUT THE EXHAUST AND ALOT OF IT WAS COOLANT AND SOME OIL. AFTER CHECKING WITH A VACUUM GUAGE AND SEEING HOW THE NEEDLE WAS BOUNCING AROUND I K...
37
1991 Chevrolet V3500 Silverado 6.2L engine VIN: 1GCHV33N3M
Hi boys and girls.I am going to leave this problem on the back burner for a while.I think I have weak cylinder when cold wich is causing the smoke but clears as soon as its driven.Also I am going to dual the exhaust so I can see wich side is at fault then I ...
15
1996 Chevrolet Monte Carlo LS 3.1L Low Coolant Light VIN: 2G1WW12M4T
Special thanks to Tim from Tenn. You hit the nail on the head!! The hole in the radiator was to small i could bearly stick a paper clip in it so i reamed it out drive the car several hours and let it idle no sign of low coolant light.THANKS to everyone but som...
15
2001 Chevrolet Prizm 1.8L Cooling Fans VIN: 1Y1SK52801
Thanks for the quick response. AC pres. switch fixed it. Nothing better than thousands of techs who can put their heads together to resolve a problem.
5
2003 Chevrolet Impala 3.4L Lighting VIN: 2G1WF52E03
Thanks to one and all. Alexandre from Florida was correct in this instance it was the BCM. The bcm has to be reprogrammed after replacement so i advised the customer to take it to the dealer. The dealer replaced the BCM and reprogramammed it. Thanks to one and...
3
2004 Chevrolet Malibu LT 3.5L Pretensioner VIN: 1G1ZU54854
All of the information received was very helpful. Thank you so much for your time. The customer decided that it would be better to take the car back to the auction, then spend the money to fix all the problems with the car. I do believe that the belt pretensti...
3
2005 GMC Sierra 3500 SLT 6.6L gauge VIN: 1GTJK39275
dash error for instrument cluster assy replaced cluster
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