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Prev Professional Automotive Repair Technical Discussions for November 22, 2006
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Open Help Requests for GM
Help Request Answers
2001 Buick Century Custom 3.1L Oil in Coolant VIN: 2G4WS52J11
This Buick has had some oil accumulation in the cooling system (mostly in the overflow container) previously, and the system has been flushed out before, only to have the problem return. Engine oil keeps getting in to the coolant system and there is no signs o...
2002 Buick LeSabre Custom 3.8L door locks, cig lighter, garage opener, courtesy l VIN: 1G4HP54K82
This car came in with the complait of battery dieing after a couple days. If it sat overnite he would have to push the eject button on the radio to get it too start(I never got this to occur). It has no courtesy lights, keyless entry or door locks, on star/rea...
1998 Cadillac DeVille 4.6L MIL Lamp on VIN: 1G6KD54Y4W
Vehicle came to us from another shop in the area. Previous shop replaced all 3 O2 sensors and the catalytic convertor due to a code P0420 being set. After they did the repair and cleared the codes P0143 keeps setting. We check the O2 readings and both from sen... Trouble codes: 143 (O2 bank 1 sensor 3)
1998 Cadillac Eldorado ESC 4.6L Starting VIN: 1G6EL12Y3W
car has intermittent battery drain. low parasitic draw, after 15 minute time out draw is .018 amps. dealer told customer battery was bad reluctantly we replaced a good six month old battery. this did not fix the car. charging system was dropping to 12.1 occasi...
1991 Chevrolet S10 2.5L Cuts out, Misfire VIN: 1GCCS14A5M
This truck scratching my head and pulling out what hair I have left. This is a long time customer and this is his work truck. Normal accel on take off, at 45 mph the engine starts missing and the truck losses power. We started with the basics, spark plugs and ...
1999 Chevrolet K3500 5.7L transfer case VIN: 1GCHK33R7X
Thanks to all your help in advance. This truck grinds when putting it in 4 wheel drive on the fly at speeds above 5 mph. The grinding is coming from the front diff. If you stop it will go in and stay in fine. We have replaced the swith, actuator, collar and sh...
2000 Chevrolet Blazer LS 4.3L MIL Lamp on, BLOWS FUSE VIN: 1GNDT13W1Y
cust. came in with engine light on, checked codes found codes for o2 sesors heater circuit. also blows 20 amp fuse for [...],and checked wireing harness. has anybody ran into this before? Trouble codes: P0133, P0135, P0147
2003 Chevrolet Tahoe LS 4.8L when turn or over bumps VIN: 1GNEC13V53
this is 2003 model. base on tsb and procedure to lubricate for intermidiate shaft and need require special tool to do this job j42640 steering columm anti-rotate pin. since we do not have this tool can we still need this tool to do this job or any suggestion, ...
1993 GMC Jimmy SLE 4.3L Excessive Emissions, Poor Idle Quality, Cuts out, Stall, Poor Fuel Economy VIN: 1GDCT18Z0P
To all technician, We have a 93 GMC Tyhoon that is running very rich under all different load. Fuel pressure and all major input sensors are at normal value. Integrator value is at 80. Ignition timing is at specification while idle vacuum is capable of reachi...
1996 Oldsmobile Cutlass Ciera 3.1L Hesitation VIN: 1G3AJ55M3T
Wow I need to type this?? This car had a Motor {jasper} eng. replacement done. All elect. and fuel transposed over. After 2,500 miles put on the car it delevloped A, what I would call a fuel starving/ Cat blockage effect.Fuel psi 40 at idle, 45-48 underload. V...
1997 Pontiac Grand Prix SE 3.8L Horn VIN: 1G2WJ52K6V
I really want to get this car fixed for this gentleman. He's one of those "perfect customers" that knows what he wants, knows how to explain what's wrong with his car and thoroughly understands the bill. The problem we're having is recreating the "horn blowing...
1998 Pontiac Trans Sport 3.4L powertrain VIN: 1GMDX03EOW
Hey guys, I have this 98 pontiac transport 4t60 trans with a 3.4 litre engine. I just rebuilt the trans and now have a vibration on accel that wasn't there before. This thing also just got a new catalytic converter at the same time. The vibration goes away whe...

Fixes & Summaries for GM
Fix/Summary Answers
1998 Buick Park Avenue 3.8L starter VIN: 1G4CW52KXW
This intermittent was due to a drain on battery at times, caught it in act finally and found this model has a less than positive closing glove box door. It can hang due to door weight and only at times light would stay on and run down, depending on passenger j...
2002 Buick Rendezvous CX 3.4L AWD Diabled VIN: 3G5DB03E02
i would like to first thank all who replied to my request for help and special thanks to micheal who sent me a trial version of on-demand for 2 weeks with a sickness in the family thay resulting in a passing i never did get to spend any time on this vechicle i...
1996 Chevrolet Tahoe LS 5.7L lo range VIN: 1GNEK13R6T
i want to thank everybody that replied to my help request.i now know alot more about the operation of the electric transfer case.after replacing the encoder motor the transfer works great.i replaced the encoder motor first because i could hear the relays under...
1998 Chevrolet Astro 4.3L Brakes VIN: 1GBDM19W3W
we tried beelding the system but with no result. switched the pads and rotors with no result. we then put both idler arms on which fixed the pull. the left arm was tight and the right one was normal.thanks to all that gave us their remarks.
1999 Chevrolet Astro 4.3L Transfer Case VIN: 1GNEL19W9X
Thank you, to all that offered replys. After endless checking, we were never able to get codes out of the controller---this system doesnt have selector buttons-- it operates on it's own when needed. It's always in auto mode. At any rate, as a last resort, we t...
2001 Chevrolet Blazer LS 4.3L alternator VIN: 1GNC518W91
thanks for all the replies it turns out that using a ac delco alternator solved the problem we made the mistake of checking power at the alternator with a test light and thought it was a computer it must be checked with a multi meter turns out after market uni...
2005 Chevrolet Aveo LS 1.6L shift interlock VIN: KL1TD526X5
hey guys thanks for all of your help and i have found the problem it was the brake switch,again thanks for all of your help.
1999 Oldsmobile Silhouette Premiere 3.4L pedal feel VIN: 1GHDX03E5X
I`m closing this with fix. After bleeding brakes the second time customer has not returned after two weeks so we are going to say that did not get all of the air first time. Thanke for the help.
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