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Prev Professional Automotive Repair Technical Discussions for February 11, 2008
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Open Help Requests for GM
Help Request Answers
1989 Buick Electra Park Avenue 3.8L Surge, Cuts out, Misfire VIN: 1G4CW54C4K
Hello fellow techs! I am stumped on this car. Came in for surging on low speeds but fine on highway. first thing i noticed is they put there own plugs and wires on this car. i drove the vehicle and at really low speeds under a slight load that it sits there an...
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1997 Buick LeSabre Custom 3.8L No Start, Stall VIN: 1G4HP52K2V
This Buick has the oft seen symptom of starting and dying, stalling at odd times and running well for a while as well. I figured ignition switch most likely suspect as monitoring the crank signal on the scanner looked ok when it was acting up. A little futzing...
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1999 Cadillac DeVille 4.6L light on dash VIN: 1G6KD54Y5X
HI EVERYONE, ALLITTLE HELPWITH THIS CADDY PLEASE.tHE TRACTION CONTROL LIGHT COMES ON EVERY FEW MINUTES WHEN DRIVING. THESE ARE THE 2 CODES STORED IN MEMORY. C1277 AND A U1016. ANY HINTS
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2000 Cadillac DeVille 4.6L Surge, Misfire, MIL Lamp on VIN: 1G6KD54YOY
Can some one please help me out i have a 2000 Cadillac Deville 4.6 Northstar this car is is surgeing like it is sucking air and misfireing on all 8 CYL.(((ONLY AT IDLE)) test Drive car care run Great... FUEL PSI Good I change the intake gasket & ispect intake ...
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1994 Chevrolet K2500 Suburban 6.5L Cuts out VIN: 1GNGK26F4R
This truck has 276,000 miles and the problem that I have is that it dies once in a moonwhile, setting no codes. I drove it over the weekend for about 200 miles, and only today monday when coming to work I was going about 20 miles per hour on the freeway I was ...
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1995 Chevrolet Blazer 4.3L shift solenoid a VIN: 1GNDT13W5S
hello all, this is for all you gm guys this 95 blazer is coming up w/ a p0753 shift solenoid a circuit fault. after doing some resurch i found that there is a common issue w/ the ignition switch and a carbon build up that cause power not to be supplied to all...
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1997 Chevrolet Cavalier 2.2L Starting VIN: 41VS872634
will not start, theft light stays on, cleared codes and still will not start.
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1997 Chevrolet Monte Carlo Z34 3.4L temp gauge VIN: 2G1WX12X5V
i first ran cooling sytem fill procedure to eliminate air trap in system, car came in with a varying temp analog gauge, its confirmed that when the engine is warming up the dash gauge will rise to half then will climb quickly to allmost hot then it will fall b...
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1998 Chevrolet C3500 Cheyenne 7.4L Poor Fuel Economy VIN: 1GBKC34J3W
vehicle originaly came in with a lean code on left bank, and a very hard start. replaced aboved mentioned components which repaired this problem. now customer states vehicle only gets 6mpg, also states when towing a vehicle it bogs from 3rd to 4th gear. vehicl...
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2002 Chevrolet Trailblazer LS 4.2L power windows/door locks VIN: 1GNDT13S42
Nothing works from drivers door. Windows. Door locks. Mirror. All functions ok from other doors. At the drivers master switch/module, I found batt power at connector c1, term d. Also batt power at connector c2, term b5. Good ground at c1, term a.This switch lo...
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2005 Chevrolet Aveo LS 1.6L No Start VIN: KL1TD62675
customer called this morning. car will crank but not start. went to customers house and checked for spark. good. cranked engine while spraying brake clean into throttle body/intake. somewhat started then died. flooded with more brake clean and quit spraying wh...
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2005 Chevrolet Silverado 2500 HD 6.6L 4wd VIN: 1GCHK23295
This Silverado has a "Service Four Wheel Drive" error message displayed. After scanning we found a C0306 Motor A or B Circuit Malfunction. After following the diagnostic procedure in AllData, we replaced the Transfer Case Control Module. No difference. The swi...
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1998 GMC Jimmy Envoy 4.3L Poor Fuel Economy VIN: 1GKDT13W5W
Hey guys.We have a 1998 Jimmy that is getting about 200 k's per tank of fuel.No dtc's,lots of power,runs great but drinks gas terribly.Have checked everything possible.Any help will be great.Thanks K.W.
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2002 GMC Yukon XL 2500 SLE 6.0L glass latch ajar switch VIN: 3GKGK26U52
Hello all. I have this Yukon XL and the rear wiper is not working. Now I have checked the fuses (2 fuses, one in the IP fusebox and one underhood), switch, power, ground and all are ok. The wiper motor was replaced about 4 months ago by another tech in our sho...
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2002 GMC Sierra 1500 5.3L front differential
this is my personal truck and the left output shaft on the front diff. is loose (wobbly) not bad but i know it will not get better. i have never been into one of the newer GM front diffs. is there a bearing to replace or is it direct splined? i have looked at ...
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1999 Pontiac Grand Am SE 2.4L timing cover oi VIN: 1G2NE52T8X
this quad-4 came to us with a noise. found that the tech who replaced the water pump and chain had not reset the tensioner. easy fix take off outer cover and reset the chain tenioner. noise is gone but now oil ia puking from behind the large aluminum timing co...
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Fixes & Summaries for GM
Fix/Summary Answers
1994 Buick Park Avenue 3.8L windows VIN: 1G4CW52L2R
THANKS TO ALL THAT RESPONDED.PROBLEM WAS AT GROUND "COMB" UNDER CARPET NEXT TO SEAT ON LT SIDE.I HAD CHECKED VOLTAGE DROP AT GND #200 AND FOUND NO PROBLEM.AFTER I UNWRAPPED LOOM I FOUND "COMB".IT DIDN'T CHECK BAD UNTIL CONNECTOR GOT GOOD AND WARMED UP."COMB" W...
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1995 Cadillac Seville SLS 4.6L warning on dash VIN: 1G6KS52Y6U
I'm going to put this one back in customers lap do it right or sell the way it is. I thank all that replied for your input and will heed warnings where given let him "bubble gum it". I have not called the dealer but according to alldata relay mod doesn't apply...
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1997 Cadillac DeVille 4.6L head gasket? VIN: 1GDND14SER
Thanks for all of the help. Most techs said to run away from this job as fast as possible. The head bolt thread inserts tend to pull out of the block, there is a TSB on this. It takes a special tool, expensive I imagine, to replace inserts, and the engine has ...
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1994 Chevrolet K3500 Cheyenne 6.5L Surge, MIL Lamp on VIN: 1GCHK33F1R
Well we learned to speak "early GM Diesel" on this one however it's on the way to the dealer for a pump. All the tests seem to lead to a weak pump and I must admit that I may be overlooking something. The general opinion is when your pump or fuel solenoid puls... Trouble codes: 35 (36 -), 36 (testing and results).
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1995 Chevrolet Blazer 4.3L Poor Idle Quality, Surge, Cuts out, Stall, MIL Lamp on VIN: 1GNDT13W5S
first off thank you for all the help this was driving me nuts and I am still scratching my head a little I pulled the plenum and checked the lines and injector and pressure regulator I realy did not find anything I replaced the gasket checked the wires going t... Trouble codes: P0325.
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1998 Chevrolet Blazer 4.3L reverse VIN: 1GNDT13W6W
Sorry that it took so long to close this one guys. Thank you for all the info. The vehicle was sent back to the transmission shop and as far as I know, they still havent figured out what was wrong with it. Again I'm sorry this request was open so long. Thnak a...
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1999 Chevrolet S10 4.3L water pump gasket failure VIN: 1GCCT14W6X
I am closing this a a fix because as you already realize, I am not the one working on this vehicle. The shop owner repaired himself (with a print-out of these replies) and using his own judgement with said information, he chose to install different pump with d...
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2002 Chevrolet Monte Carlo SS 3.8L Excessive Emissions, MIL Lamp on VIN: 2G1WX15K22
THANKS FOR ALL THE QUICK REPLIES. THIS VEHICLE PASSED THE ONTARIO EMISSION TEST WITH GOOD NUMBERS. DUE TO THE ONGOING SNOWY WEATHER AND CUSTOMER SCHEDULING I HAVEN'T BEEN ABLE TO GET THE CAR BACK IN THE SHOP FOR A RECHECK. THE PLAN IS FOR A GM REFLASH OF C... Trouble codes: P420.
23
2003 Chevrolet Monte Carlo SS 3.8L front timing ch/balancer VIN: 2G1WX12U03
After getting a couple of your e-mails we verified that all was well within the engine and put it back together. tested for a plugged convertor and found that it was indeed plugged. the end play on the gears though not in spec were not a problem. Thanks for al...
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2004 Chevrolet Malibu LS 3.5L door locks VIN: 1G1ZT54844
I unplugged the drivers side switch and the problem went away. So I replaced it and the locks are working properly.
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2003 GMC Sierra 2500 HD SLE 6.6L Power seat VIN: 1GTHK23113
I would like to thank everyone who took the time to help me out. As many of you suggested, I removed power to the seat module, waited 30 seconds, and then plugged it back in. This reset the module and everything worked perfectly. It lasted about a day, and the...
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2005 GMC Sierra 3500 SLE 6.0L speedometer reads too high sometimes VIN: 1GTHK33U25
hi, everyone thanks for all who responded to my request everyone said contact dealer because it is a problem with these trucks dealer said most 2005 model year is not covered but agreed to check it out and try customer decided if not covered under warranty he ...
12
1987 Oldsmobile 98 Regency 3.8L Excessive Emissions, Poor Idle Quality VIN: 1G3CWS131H
Thanks to all 16 responders. Blair from Missouri sent a message that is detailed about the operations of all parts of the engine and the computer system. I had some comments about compression, I did a check, all cylinders were between 128 and 135. i - junk Del...
16
1999 Oldsmobile Alero GL 2.4L No Start VIN: 1GJMC12365
thanks to everyone i did try the 500ohm and reprogram works great thanks
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