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Prev Professional Automotive Repair Technical Discussions for November 30, 2005
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Open Help Requests for GM
Help Request Answers
1997 Buick Park Avenue 3.8L anti theft system. VIN: 14CU5217V4
Hi evryone. I have this 97 buick park ave. that will not start. the starter does not engage, and no power getting to the starter solonoid. the customer stated that this used to happen intermittenly, but now it wont do anything. it used to start if it was left ...
2000 Buick Century Custom 3.1L blower motor VIN: R4WE537193
blower motor runs on high w/ cant control speed of blower w/ ign.turned on ,always on high. any diag.we can preform?
1985 Cadillac DeVille 4.1L engine VIN: 1G6CD6980F
in came this Cadillac Deville. Customer stated that the engine won't shut down when he turns off the key. Went out and checked and sure enough, the engine will not shut down. Turn of and remove the key, and keeps running. Replaced, lock cylinder, ignition swit...
1992 Cadillac DeVille 4.9L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy VIN: 1G6CD53B4N
this car bucks and jerks and runs very bad after about 80 miles and owner has to pump the pedal to keep it running to get home. we had this thing in here 6 weeks ago and it had stalled so we rebuilt the dist. and it drove fine. now we have it back and it runs ...
2002 Cadillac Escalade 5.3L abs VIN: 1GYEK63N32
vehicle sets code 282, replaced bpmv, bleed system with scanner, test drive & resets code 282, any help appreciatted
1985 Chevrolet Celebrity 2.8L Surge, Stall, MIL Lamp on VIN: 2G1AW19X7F
After warming up vehicle, when you come to any stop light or sign vehicle has a bad surge and hear throttle kicker activating on a constant 2-3 count. Also the CEL light will flash at same count. So all happening together. Found that multiple solenoids and air...
1994 Chevrolet C3500 Cheyenne 6.5L Stall, no communication VIN: 1GCHC39F1R
I have a chevy truck that will intermitently stall sometimes it will run for 30 seconds sometimes it will run for hours, I can't get any communication from the PCM at any time. The wiring diagrams I have show that there is a wht/blk wire that runs from the dcl...
1994 Chevrolet K1500 Cheyenne 5.7L 1-2 Shift & Overdrive VIN: 1GCEK19KXR
On first start the vehicle will start in first and shift to 2nd and 3rd. Come to a stop and it will remain in 3rd unless manually shifted down but will not go back to 1st, it will then start in 2nd and then go to 3rd. So far we have changed the 1-2, 2-3 and th...
1998 Chevrolet Lumina 3.1L tcc VIN: 2G1WL52M7W
Mother in-law came in for general maintenance (LOF,trans and cooling system services,rotate,balance,brake inspect) and SES light on continuously. She had no "driveability complaints". DTC 1870 stored so I checked freeze-frame data: engine load 30%. Coolant 198...
1999 Chevrolet K1500 LS 5.7L Cuts out, Stall, MIL Lamp on VIN: 1GCEK19R2X
Hi, thanks in advance for the help on this! This was brought into my shop this afternoon with mil on and complaints of stalling. Stalling occurs intermittantly, but most often after a cold start. Always restarts right away. My scan tool pulled out a PO453B - E... Trouble codes: P453
2000 Chevrolet Silverado 1500 5.3L Misfire VIN: 2GCEC19T3Y
the problem i'm having is a slight mis at idle not enough to trigger a mis-fire code but it is noticeable. scan test indicated a code p0463 fuel level sensor problem. i'm sure it needs a sensor since when i bang on the take with a rubber mallot the guage start...
2002 Chevrolet Corvette 5.7L MIL Lamp on VIN: 1G1YY22G22
Hello All! This car came in a few weeks back with the mil on and P0442 code for small evap leak. I have smoke tested the car on two seperate days and find no smoke leaks and the system holds nitrogen perfectly! We even replaced the vent solenoid incase it had ... Trouble codes: P0442 (Small Evap Leak Detected)
2002 Chevrolet Express 3500 LS 5.7L Misfire, MIL Lamp on VIN: 1GAHG39R82
Well it's been a while since I had to send a request, but when the chips are down you've got to call in for the big guns. The problem that I've been fighting has apparently been going on for about 6 months the cutomer just doesn't bring it back right away. T... Trouble codes: P0300 (random misfire)
1993 GMC K1500 Sierra SLE 4.3L Surge VIN: 1GTEK14Z3P
This truck drives perfectly down the road, but at stop lights the MAP sensor voltage will slowly climb to 2v, along with the O2 sensor climbing to over 1v beleive it or not. When both reach these voltages, truck surges and idle flies up and down between 3000 a...
2001 GMC Sierra 1500 HD SLE 6.0L Poor Idle Quality, MIL Lamp on VIN: 2GTEK69U71
with new tac, throttle body, lab scope app don't know what good is had a 1v difference between wot and idle. in app2 and app3 signals at tac. leaning toward pcm have to go to dealer to flash. any suggestions or tests would be appreciated. thanks in advance dua... Trouble codes: P1518 (lost serial data between etc and pcm)
1996 Oldsmobile 88 Royale 3.8L No Start VIN: 1G3HN52K5T
Hello, No start –buzz from fuel pump relay. 1996 Olds 88 3800 FI 105,120 miles VIN: [...] On 10/01/2005 a new battery was installed. On about 10/08/2005 the car wouldn’t start and you could here a buzz coming from the right lower dash. When touched I ...
2000 Oldsmobile Alero GL 3.4L shuts off VIN: 1G3NL52EXY
Customer says car will shut down from time to time at any speed any condition,flat road,incline curve or straight away but only happens with her,never us.Scan for codes with snap on scanner-none present.Have driven car with scanner hooked up-nothing unusual.Ca...
2001 Oldsmobile Alero GL 3.4L service spension light VIN: 1G3NL52E11
hi hope you guys can help. this has a code c1285 car drives very well cannot find any thing wrong with the supension. sorry do not have much experiance with thisand code will not clear. thanks bruce
2000 Pontiac Grand Am GT 3.4L No communication VIN: 1G2NW52E7Y
All of the shop computers will not communicate with the car. Tested all power and grounds at the aldl. Checked continuity at all class 2 data lines that I can find. Disconnected all modules as per alldata. Itappears as if there is no communication at the class...
2002 Pontiac Firebird Formula 5.7L Poor Idle Quality, Misfire VIN: 2G2FV22GX2
This car has a miss at idle on every cylendar more on 1 and 6 but all of them miss only 2 to 5 counts per every cycle. but all cyl. are missfiring. It doesnt set a check engine light not missing enuff to set any code. all data looks normal on scan tool. The ca...
1998 Saturn SC2 1.9L MIL Lamp on VIN: 1G8ZH1278W
according to the freeze frame data,the car sets both dtc's at the same time as soon as it gets started. once reset, it takes 2 weeks of driving(by the customer) for the codes to set again. all grounds have been checked as have the related circuits and the two ... Trouble codes: P0711, 90117 (engine temp)

Fixes & Summaries for GM
Fix/Summary Answers
1989 Cadillac Eldorado 4.5L Starting VIN: 1G6EL1156K
Thanks for all the great responses from all of you.First I checked the resistance of the key and it was ok then I disconnected the 2 wires at the base of the steering column and with key in run position I checked the resistance to the 2 wires and there was no ...
1992 Cadillac Eldorado 4.9L Poor Idle Quality, MIL Lamp on VIN: 1G6EL13B6N
With unknown reason, distributor was the cause. I got one from junk and replaced it. No more MIL's on. Thanks for your help and sorry for not giving you proper information regarding repair. I simplely don't know why at this time. Trouble codes: 41 (Cam reference signal).
1996 Cadillac Seville STS 4.6L Lighting VIN: 1G6KY5293T
the fix ending up to be a faulty ground in the right front fender , close by the battery, the connection looks good, but internally was defective. Initially we added a ground in the right rear, but another technician fail to point out that he only ground the r...
1998 Cadillac Seville STS 4.6L engine VIN: 1G6KY5492W
thank you every one it looks like the rad was the problem
2000 Cadillac Escalade 5.7L Braking VIN: 1GYEK13R7Y
Finaly got this thing back in the shop. Thanks to you techs that recomended OEM pads. The NAPA AE pads have a tapered off surface, and less pad contact when new on the rotor. The OEM are full contact. This still had a soft pedal feel with or without power assi...
1991 Chevrolet Corvette 5.7L Surge, Stall VIN: 1G1YY3382M
Hello everyone, Though the vehicle is not completely fixed yet, it is time that I closed this Request. I received about 10 responses, so let me fill you in on what has happened so far. I replaced the EGR valve and the plenum gaskets just because I was at a los...
1996 Chevrolet Cavalier 2.2L Coolant Temp VIN: 1G1JC1245T
After tearing down the engine and sending the head to a machine shop, it was determined that the cylinder head has small hairline crack in it. This did not show up with the block or HC test, but was small enough to induce air into the system when the vehicle w...
1996 Geo Metro 1.0L Poor Fuel Economy, MIL Lamp on VIN: 2C1MR2261T
Hello everyone I have fixed the fuel concern on this car the timing belt was on wrong and it had no power while I had the timing cover off looking for the crank sensor which I never did find? I lined up the timing marks and found out that they did not line up.... Trouble codes: P0335 (Crank sensor fault).
1999 Oldsmobile 88 Royale 3.8L Stall, MIL Lamp on VIN: 1G3HN52K6X
The oldsmobile is fixed. Thanks to all who replied. The problem was the aftermarket MAF sensor. I did find out that I could not buy a new sensor, but an AC Delco reman. That was all the GM Dealership could get. Put and AC Delco reman on and asked customer to c... Trouble codes: P0102 (Mass Air Flow Circuit Signal Low).
2001 Oldsmobile Intrigue GX 3.5L Heather/AC and Cruise Control VIN: 1G3WH52H51
The problem, simply fixed itself, but may show up again and then i will check it out closer. Thanks for all your help. Randy
1994 Pontiac Grand Am GT 3.1L 4th gear VIN: 1G2NW15M8R
Well this one is done. We installed a used tranny and vehicle is performing o.k.
1995 Pontiac Grand Prix SE 3.1L Radio VIN: 1G2WJ52MXS
Thanks for the replies. The code was 03 16 Thanks again.
1999 Saturn SL1 1.9L radiator VIN: 1G8ZH5287X
almost 100% said head was cracked. I called the Saturn dealer and think yhey are going to warranty this. Thanks to all for the help, I'm sure I'll see this problem in the future.
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