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Prev Professional Automotive Repair Technical Discussions for June 23, 2006
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Open Help Requests for GM
Help Request Answers
1995 Buick Regal 3.8L launch from stop VIN: 2G4WB12L3S
Hey all you GM trans guys out there, I need a little help on my 95 Regal GS. It just developed a shudder on launch at about 1/2 to 3/4 throttle. Engine and trans operate normally other than the shudder. I keep the fluid changed regularly due to driving style a...
1996 Buick Riviera 3.8L Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G4GD2216T
when this lump gets hot my maf hz goes to zero the mil light and traction control lite come on .i bypassed the A wire from the sensor to the pcm ok for 20 miles then same problem there is 0 backpressure and the car does not have the power it should.i also have... Trouble codes: 102 (maf low)
1994 Chevrolet S10 Blazer Tahoe 4.3L Poor Idle Quality, Misfire VIN: 1GNDT13W7R
This is one of my personal vehicals, and it is haveing a problem at idle, it runs very rough, shakes, and is intermittetly missing at idle. once you put it under a load, the miss goes away. it has plenty of power, only runs porrly at idle. No apparent vacume l...
1998 Chevrolet K1500 Cheyenne 5.7L abs VIN: 2GCEK19R8W
Hi and thanks to all . This is a 1998 1500 4x4 Chevy , the problem is the ABS will activate when it shouldn't. It is some what intermitted. You might drive it all day and can't get it to do it then it will start and do it almost every time you stop. It is NO...
2001 Chevrolet S10 2.2L engine VIN: 1GCCS19541
Hello everyone. I've got this 2001 2.2 S-10 that has an engine oil leak at rear main area. Slight leak at front of oil pan also. Customer states that he is using 2qts every 1000 miles. I've never had a rear main go out in one of these. There doesn't seem to be...
2002 Chevrolet Trailblazer LS 4.2L Cooling Fan under performing with A/C on VIN: 1GNDT13S82
Customer brought vehicle in after replacing the Electrocic fan clutch at another shop for noise. With no A/C the fan RPM date is fine untill you turn on the A/C. After A/C on and driving down the road the actual RPM is lower by 500rpm then the desired RPM and ...
1999 GMC K1500 Suburban SLE 5.7L No Start, Stall VIN: 3GKFK16R5X
customer states vehicle will start and stall intill it sits for severl hours, seems to happen more in damp conditions. Trouble codes: P1626 (antitheft problem)
2000 GMC K2500 Sierra SL 5.7L headlights VIN: R8YF439180
I have a customer who has a set of PIAA headlight bulbs he wants installed and the headlights wired so that both low beams and high beams are on when the high beams are used. His other truck was wired this way but I cannot find a wiring diagram that will help ...
2004 Pontiac Grand Prix GTP 3.8L abs module VIN: 2G2WR52434
we have a 2004 grand prix gtp w/ws6 pckg with stability control,4 wheel abs, traction control customers complaint all lights went on while driving service trac,service brakes,service stability scanned it and had c0896 device voltage range and also a history co...

Fixes & Summaries for GM
Fix/Summary Answers
1989 Chevrolet R2500 Suburban Scottsdale 7.4L Hesitation VIN: 1GNGR26N5K
A Big Thanks to all those who read my plea for help, And A special thanks to those who sent helpful ideas, All were good, and I would have liked to sent the TBI to A carb shop as several said but can`t do with out it for the time it would take. Peter [...] s...
1995 Chevrolet Astro CL 4.3L unknown VIN: 1GNEL19W8S
This one's a fixer. However, there's a bit of difference between myself and my boss as to what actually fixed the vehicle. My thinking is as such: After reviewing the responces I recieved and knowing what had been done to the vehicle, I opted to replace the AB...
2001 Chevrolet Cavalier 2.2L engine VIN: 1G1JC12461
Many replied a head gasket problem, some more said to use a dye trying to verify the source of the leak. The fix was 2 prong. First remove the cyl head the top of the head gasket against the cyl head was wet so the head gasket was replaced. While the head was ...
2000 Pontiac Grand Prix GT 3.8L abs VIN: 1G2WP52K4Y
we did determine the condition existed in the wiring harness - however customer did not want to spend the dollars to find out where. thanks for the replies
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