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Prev Professional Automotive Repair Technical Discussions for April 8, 2005
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Open Help Requests for GM
Help Request Answers
1998 Cadillac Catera 3.0L Starting VIN: W06VR52R3W
Hello all. Have very little info to give you on this as I have limited info on this car. Basically with the windsheild wipers in the off postion I have lites on the inst. panel on(outside temp,fuel gauge,battery,cel,abs,airbag) with scan tool hooked up antithe...
2000 Cadillac Escalade 5.7L vtd VIN: 1GYEK63RTY
customer complaint of crank/no start condition that occured rarely, but has become more common recently. Truck has never failed to start after letting set for 15 minutes. Unable to duplicate complaint. The only code in the vtd/evo module is c503 (an evo code)....
2000 Cadillac Escalade 5.7L battery VIN: 1GYEK13R4Y
Hello everyone.This vehicle has a 2-5 day battery drain that is intermittant and undetectable. This vehicles problems started last june. customer took to aftermarket shop for no start. they tested battery,battery tested bad. installed new aftermarket battery. ...
1980 Chevrolet Pickup K10 5.7L Stabilizer Bar Bushings
This 4WD Chevy is in need of front stabilizer bar bushing replacement. On the 4WD suspension the bushings are apparently pressed into the ends of the bar. They are about an inch or larger. I have the new bushings, but can't figure out how to get them in. Is th...
1993 Chevrolet Camaro Indianapolis 500 Pace Car 5.7L No Start, Poor Idle Quality, Stall VIN: 2G1FP22P5P
hey all. this @#$# car was towed in not wanting to start. it was hard cranking and popping back through the intake, sound like timing was off. customer had other mech put used dist in it , figured the got timing off. I put the engine at top dead center on #1. ...
1994 Chevrolet K2500 Cheyenne 6.5L Poor Idle Quality, Misfire VIN: 1GCGK24F1R
This truck has an idle problem when cold. It spits & sputters and idles very high when cold. When it is warm it idles OK. When it is warm it runs like it has no variation in the acceleration. It is either at an idle or running wide open. You can't hold it at a...
1995 Chevrolet Lumina 3.1L Starting VIN: 2G1WL52M1S
Vehicle was brought in to shop with electrical gremlin. It does not happen all the time, sometimes if it sits overnight and you goto start it, it will be completely dead, it will jump start fine and run fine. Other times it might be a day or two and then the ...
1995 Chevrolet K1500 5.7L abs VIN: 2GCEK19K45
Hello, we have a 1995 chev 1500 4x4 w/ Kelsey Hayes 4wal 3 channel abs system here. this system is the one w/ only one valve, at the rear of the unit, on the proportioning valve. (valve is attached to EHCU. EHCU doesn't have a bleeder on the unit, and is not t...
1996 Chevrolet Tahoe 5.7L Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on
This is a vague presentation, but soon you will understand why. The above afflictions, and many more, were found to be caused by a VCM swimming in gasoline. My question is, is this a commonly seen issue, and what is the root cause? And, is the manufacturer a...
2002 Chevrolet Cavalier LS Sport 2.2L MIL Lamp on VIN: 1G1JH52F42
Need some help with this one boys. The customer complaint is that the check engine light comes on, after the vehicle sits for awhile, customer starts vehicle and drives for about 2 minutes and the light comes on. Light has not come on for us at all. Have run d... Trouble codes: P0135 (Oxygen sensor heater circuit bank 1 sensor 1)
1996 Pontiac Firebird 3.8L cooling VIN: 2G2FS22K8T
Water present in oil and oil present in water. No sign of head or head gasket problem. Anyone aware of any problems that could cause these conditions? Has been looked at by several people and no one has any idea what could be causing the problem. By the way th...
1996 Pontiac Grand Prix GTP 3.4L Timing belt VIN: 1G2WJ12X9T
Good morning GM techs. I have a good customer that had a timing belt replaced on this 3.4 V6 by another shop out of town. He made it back home and came right to my shop because of BAD noises coming from the front of the engine. The best way I can explain it is...
2000 Pontiac Montana 3.4L MIL Lamp on VIN: 1GMDXU3E2Y
hey techs please help don't know any thing to do to remedy but has to be fixed for state inspection any suggestions. Trouble codes: P0401 (insufficient egr flow)
2002 Pontiac Aztek 3.4L Radio VIN: 3G7DB03E32
Need some help from you GM guys. this 02 aztek is my managers mom's vehicle and we replaced the body conrol moduel on it due to the rear door not opening and a/c compressor not coming on. on scan tool a/c reguest was no with the a/c botton pushed in so we repl...

Fixes & Summaries for GM
Fix/Summary Answers
2001 Chevrolet Express 2500 6.5L Stall VIN: 1GCGG29F41
Thanks everybody for your replies, we sent the van to the dealer per TSB. The owner had the letter even. I had found the TSB before i got replies but it's nice to have confirmation on symptoms. The dealer said they found a code 1216 [undetected by us]. I think...
2002 GMC Yukon Denali 6.0L transfer case VIN: 1GKEK63U52
We tryed replacing the 2 tires to match the 2 we replaced previously to no avail-the fix was a replacement transfer case as most replies indicated.Received some very helpful replies on exactly how this unit works and how to diag.Priced this unit thru the after...
2003 GMC Sonoma SLS 2.2L Headlights VIN: 1GTCS14H73
Thanks to everyone who replied with help. After checking all the grounds and doing a voltage test on the alternator. We found that it was the alternator causing the surge and blowing out the light bulbs. Replaced alternator and all is good now.
1989 Oldsmobile Cutlass Calais SL 2.5L Cuts out, Stall VIN: 1G3NT54U0K
A GM ignition module fixed the dwell variation problem. Stalls a LOT less, only about once a week now, but the weather is warmer too!
1998 Oldsmobile Intrigue 3.8L abs VIN: 1G3WH52K5W
Well we found out that of scanner (snap on solus), and i guess this is comman, will show the wrong values on wheels (very nice) left rear value was the right front, so after changing the left rear sensor (probley not needed) we replaced right front bearing/hub...
1999 Oldsmobile Bravada 4.3L Hesitation VIN: 1GHDT13W5X
I want to thank all who replied. Well its happens when you try to relay info 2nd hand. they said the converter was 'taken care' off but they failed to tell me it had 2 converters. the top one was clogged. so it really wasnt a weird problem just bad info. thank...
1997 Pontiac Grand Prix GTP 3.8L ABS light, TIM light, Power steering VIN: 1G2WP1219V
I replaced the abs main relay and test drove the vehicle, it acted up one more time. so i wiggled and prodded every conection between the relay and the starter. the customer did not want to spend any more $ so we put it back together, but she has not had any p...
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