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Prev Professional Automotive Repair Technical Discussions for April 14, 2006
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Open Help Requests for GM
Help Request Answers
1991 Cadillac Allante 4.5L Unknown VIN: 1G6VS3384M
Good morning folks, I have an Allante that will turn on the red brake warning light after starting the car and stepping on the brake pedal. The pedal feels fine and it stops fine also. The code that is setting is 64 (improper plausibility switch fault). The li...
1995 Chevrolet G30 Chevy Van 5.7L No Start, POOR RUNNING VIN: 1GCGG35K9S
Van came in no start. I went out to van and took dog house off and cranked it and had spark Van started but ran very poorly for about five minutes and then did not act up again for a week. I eventually found that the right injector was not firing when van ran ...
1996 Chevrolet S10 LS 4.3L Poor Idle Quality VIN: 1GCCT19W7T
This vehicle graced our shop several days ago. The customer stated that after having his engine replaced across the mountains his S10 started idleing rough and stumbling on accelleration. Further probing found that he wasn't positive this symptom wasn't presen... Trouble codes: P0300 (Random missfire detected)
1997 Chevrolet Camaro 5.7L Differential
trying to install new pinion gear bearings in this posi unit. I have limited experience w/ this rear end. Can't get the carrier assembly removed. Removed carrier bearing caps & nothing. Is there something else holding it in place? any insight or help from you ...
1998 Chevrolet C3500 Cheyenne 5.7L No Start, Stall VIN: 1GCGC33R9W
To get right to it, customer complaint is truck intermittently stalls from cruise and takes up to 15 minutes to restart. It has stalled about 4 times in 2 days for me, 3 times at an idle, and once as i was beginning to step on the gas pedal. Will restart immed...
1998 Chevrolet Cavalier 2.2L LR Wheel VIN: 1G1JC1243W
Have serviced this rental/loaner car several times and vehicle has had this problem the whole time. Tried disabling ABS to see if problem went away but, no luck. There is no marks on the ID of the brake drum to indicate the linings are hitting the drum. Have t...
2001 Chevrolet Cavalier 2.2L Shudder/Vibration VIN: 1G1JC524X1
I need some help with a Cavalier we have in the shop. The car intermitantly has a shudder at cruise around 55-60 mph. I suspected a misfire but everything checks out OK, i even tried swapping the coils out with know good ones. I also inspected all suspension c...
2002 Chevrolet Silverado 2500 HD 6.6L drive belt VIN: 1GCHC23122
The vehicle came in a few months ago with a belt sqeak. After all the items above had been replaced it still had the noise. We replaced the belt with the factory belt ([...] uzz) and the noise went away for two weeks, but now its back. Using a lazer align t...
2003 Chevrolet Silverado 1500 4.8L brake warning light VIN: 2GCEC19V77
parking brake and abs light come and off.accees abs and found no code.found no exterior low brake pedal.brake are operating normal
2000 Pontiac Bonneville SE 3.8L ride control
hi fellow techs,i have a problem with this ride control.the pump runs most of the time with key on.will air up rear shocks,then they'll stay up-no leaks.sometimes it will release and lower shocks to normal ride hieght.sorry for the vague request,but i will be ...
2001 Pontiac Grand Am SE 3.4L No Start VIN: 1G2NF52E21
this ones a hair puller, has spark, fuel press, plugs are dry, will run on carb cleaner, suspect no pulse to injectors, crank and cam genrators have been changed, 50 -psi fuel press, kinda lost on this, thanks for any and all imput.

Fixes & Summaries for GM
Fix/Summary Answers
1998 Buick Skylark Custom 3.1L switch VIN: 1G4NJ52M02
1995 Chevrolet Caprice Classic 5.7L Fuel pump VIN: 1G1BL52P7S
Hello everyone,As I stated in my original post the car isn't driven much because he is trying to sell it.Anyway the car is still here and is still starting every morning,every lunch break,and every evening when we drive it in. We got some helpfull sugestions w...
1996 Chevrolet Astro 4.3L Intake manifold VIN: 1GNEL19W8T
Thanks for the great response everyone. We fixed this car and used the Fel-pro gaskets like many folks reccomended. The kit included the valve cover gaskets so they were also replaced. The heater valve broke when we removed a hose so that was replaced. We used...
1999 Chevrolet Silverado 1500 5.3L No Start, Stall VIN: 1GCEK19T5X
it was the vehicle theft sensor in steering column. thanks for all the replies. good to know everybody thinking same direction i was. what got me was when called dealer with vin# they said did not have antitheft. that's what i was thinking when the other shop ...
1999 Chevrolet Astro 4.3L Spider Gears VIN: 1GNDM19W2X
Thanks Techs. Nothing really unusual about the repair or the condition of the gears. Just as some of you said, maybe just a tad too small a rearend for this vehicle since it also serves as a trailer towing vehicle. Replaced side and spider gears. Used stock sh...
2000 Chevrolet Venture 3.4L alt VIN: 1GNDX03E0Y
thanks to all who replied. well the fix was you guessed it/ an ac delco alternator. after the responses of aftermarket junk my boss said to go ahead and put one on it. if it was up to me all parts would come from the dealer. thanks again
2001 Chevrolet Silverado 2500 HD 8.1L trans data VIN: 1GCHK29GX1
First of all thanks to all that have responded. It turns out that this vehicle had a couple of problems. 1st problem was that it had a snow plow electrical harness at the battery that was inbewtweeen the oe electrical harness so all vehicle power was going thr...
2006 Chevrolet aveo 1.6L Stall
Thank you all for your replies. I was sent to training the next day and the car was given back to the customer. And it has not returned yet. but if it does i will update the post.
1996 GMC C1500 Sierra SL 5.7L Rear brakes VIN: 1GTEC19RXT
FIXED...The darn truck was being a VENTRILOQUIST!!! And I was the dummy!!! The truck has a campershell. Three of us (we took turns) rode in the back of the truck while another tech drove the truck. The sound & vibration we all agreed was felt & heard in the le...
2001 GMC Jimmy SLE 4.3L MIL Lamp on VIN: 1GKDT13W31
thanks for your replies after checking the check valve operation we found that the tech that installed the pump switched hoses Trouble codes: P0410 (secondary air problem).
2001 GMC Jimmy SLE 4.3L cannot fuel vehicle VIN: 1GKCS13W71
We recieved many replies, many said pull the tank & check for restrictions, or foreign objects inside. We replaced the tank, found that the forward vent/check valve which is made into the tank (not servicible) was hung up & would not allow air to flow in eithe...
1997 Oldsmobile Bravada 4.3L Chassis VIN: 1GHDT13W0V
Sadly the only fix we could find was to replace the transfer case with a used one,it was a gamble but it worked.Still don't know what the problem with the rebuilt transfer case was!
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