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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 21, 2008
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Open Help Requests for GM
Help Request Answers
1992 Buick Century Custom 3.3L Stall VIN: 3G4AH54N1N
New customer- Complaint, engine stalling while driving on freeway, engine would restart but die out again when he tried to go. Able to limp home and brought to our shop following Monday. Test drive engine ran good. No fault codes stored, Ignition components lo...
1997 Buick LeSabre Custom 3.8L engine VIN: 1G4HP52K3V
Hi, hope someone can help me with this one. The car came with over heating and empty cooling system. We filled in water and we found them in the exhaust after that we replaced the inlet manifold and we fiiled in water and they continue go to the exhaust. we re...
2004 Cadillac CTS 3.2L no engagements in forward VIN: 1G6DM57794
We have to rebuild this unit and we found the forward clutches gone. Is there anyone that have ran over the same problem that could give us an idea about what to look for before we start rebuilding it? thank you in advance
1994 Chevrolet C2500 Suburban 7.4L Compressor VIN: 1GNGC26NXR
Veh. came to us with a locked up comp. Replaced comp, accum., and o-tube. Flushed cond and evap. Added oil as needed based on specs in Mitchell. Charged system and started veh. High side shot to 450#. Recovered charge and inspected o-tube. Found powdery substa...
1995 Chevrolet G10 Beauville 4.3L Misfire VIN: 1GCDG15Z8S
This one is making me get some vaseline cause it is starting to hurt.. !! This van originally came in to our shop because it had really bad hesitation and popping through intake. customer had already put an air filter and some fuel system cleaner because it wa...
1995 Chevrolet K2500 Cheyenne 6.5L Power Streering VIN: 2GCFK29S2S
Customer repaced P/S pump due to no power assist. We replaced P/S gearbox, and Hydroboost, no difference. We replaced P/S pump with reman Acdelco P/S pump(twice).Tested P/S pressure at idle- 350psi, dead head pump-1300psi.Replaced P/S pressure hose from pump t...
1996 Chevrolet C1500 Suburban 5.7L battery VIN: 1GNFK16R6T
Hey guys first time asking for help. Have 1996 surburban that is killing battery after about 2weeks or more. performed both amperage and voltage draw on this vehicle.all memory ckts power down properly but do have a 7.5volt draw on battery fuse # 19 going to r...
1996 Chevrolet K1500 5.7L dead battery VIN: 2GCEK19R4V
Hello, to all this truck has a 2 amp draw on fuse #7 (engine fuse box) MOD shows it feeds the dash fuse panel fuses 1,2,7,13,19,21, and acy. circut breaker, pulling all of these does not make my draw go away.. truck has no aftermarket asy. installed at all.. ...
1997 Chevrolet S10 4.3L Turn signals &brake lights VIN: 1GCCS14X8V
This truck has some minor front end damage on the right side from a recent deer hit and the customer states that after the accident the lights no longer worked properly. Now the turn signals and flashers don't work and both turn indicators on the dash light up...
1998 Chevrolet S10 4.3L no heat VIN: 1GCCS14XZW
Need help guys I have replaced every part that is related to aquiring heat to the passenger compartment all doors are operational Air flow is high to all exit points. I have hot going into heater core about 20 degrees lower coming out. water flow going into he...
1998 Chevrolet Malibu LS 3.1L No Start, Poor Idle Quality VIN: 1G1NE52M1W
Hi everyone This 98 chevy Malibu has a problem when you first start up vehicle. (cold) and when it sits for a few hours or so. When I crank the engine the motor will not run right away.(long crank condition) Sometimes it will catch and the rpm will vary. While... Trouble codes: P0172
2000 Chevrolet Silverado 2500 6.0L Drive Train VIN: 1GLGK29UOY
Customer complant intermitten truck feels like your running over rumble strips I drove the truck and it does just like your coming to stop sign rumble strip. When it acts up its under acceleration between 60 $ 70 miles an hour.
2001 Chevrolet Tahoe 5.3L Starting VIN: 1GNEC13T41
Customer complained that for a while in the morning she had a “crank, no start" condition. Then, yesterday morning, the vehicle wouldn’t even crank. She got home that afternoon and tried again, it started. She drove directly to us. It started for us to run int...
2002 Chevrolet Impala 3.4L on/off VIN: 2G1WF52E22
car came in with no fan/blower motor working,it has 5 settings -as we go thru them the cruise control light flashes on and off, but no fan , if we take fuse out of the cruise control circuit the fan works fine on all speeds , thanks to all for any input you ha...
2002 Chevrolet Cavalier 2.2L fuel gauge speedometer temp gauge VIN: 1G1JC12452
This customer came to my garage after a battery change the car run great everything works at the exeption of the fuel gauge the temp gauge and the speedometer and all the warning light drived by the pcm bcm ebcm .The flasher light indicator are ok the the ses ...
2002 Chevrolet S10 LS 4.3L drive shaft VIN: 1GCDT13W92
this s10's drive shaft is hitting the bottom of the cab right were the front yoke is. no problems for 100k then this. under light accel it would do it. replaced all motor, trans mounts. no difference. there is not enough room between the shaft and bottom of ca...
2003 Chevrolet Trailblazer LS 4.2L Cooling Systems VIN: 1GNDD13Z43
This vehicle came in with a check engine light on. Scanned, found PO495, cleared code and released vehicle to regular customer. Returned next day, followed diagnostic procedures we replace cooling fan relay. Released vehicle again, returned again one week late...
2003 Chevrolet Avalanche 1500 North Face 5.3L service 4wd light VIN: 3GNEK13T73
The C0306 code continues to reset intermintently. It does not reset on every key cycle. We replaced the ATC module and had it programmed at the local dealer, because of a 2.2 volt output to the encoder. The problem didn't change. We put in a new encoder and th...
1998 GMC C3500 Sierra SL 6.5L Engine VIN: 1GTHC33F6W
Needing some serious help guys. Customer brought this truck in to me for front end work, shocks, align. Customer said he just bought the truck. He also noted to me that it didnt run just perfect. Well i had my tech do the work the truck WAS BROUGHT IN FOR and ...
2001 GMC Yukon XL 1500 SLE 5.3L temp and duct control VIN: 1GKEC16T31
Vehicle came in owner complaint of no temp control. It will also not direct air to defrost of feet, always comes out facia vents. Temp door actuator does not move when commanded, replaced acutuator with known good part and still no temp or duct control. GM bul...
2001 GMC Yukon XL 1500 Denali 6.0L air suspension VIN: 1GKFK66U11
2001 Yukon Denali right rear sits high left rear sits low. Air suspension compressor keeps cycling frequently. First knee jerk reaction was to replace both rear air shocks, this solved the bouncy rear but still sits crooked and the compressor frequenly runs. I...
1991 Oldsmobile 98 Regency Elite 3.8L Poor Idle Quality, Misfire VIN: 1G3CW53L8M
After cam sensor magnet repair, car ran fine for about 10 days. Came back with intermittent misfire (no codes). Acted like a bad crank position sensor. Replaced sensor and Balancer. No help. I checked the injectors (A-OK) and ignition. After several test drive...
1999 Oldsmobile 88 Royale 3.8L Starting VIN: 1G3HN52K9X
This vehicle has come to me with an intermittant no crank. I only could recreate the problem once and found that when in a no crank situation, there was no power to the starter. It also sometimes, has a delay before it starts to crank.
2001 Oldsmobile Intrigue GLS 3.5L Cooling Systems VIN: 1G3WX52H21
ok heres the deal if the car is idling it cycles like it should temp gets up to 214 fans kick on temp goes down to 194 fans cut off. fans are entering high mode as well when temp gets over 230. ok now once you get driving down the road the temp starts rising q...
1997 Pontiac Sunfire GT 2.4L Park Brake VIN: 3G2JD12T8V
This Sunfire has a park brake that won't completely release. Rear cables are free, levers free in rear drums, when I pull the front cable back (under car) it releases and stays released. As soon as I pull park brake a couple times(to let self adjuster take up ...
2001 Pontiac Grand Am SE 3.4L codes in pcm VIN: 1G2NF52E81
u1000 comes back immediately after clearing-cruise is inop because of class 2 communication problem-see related history-thanks Trouble codes: U1000 (serial 2 communication)

Fixes & Summaries for GM
Fix/Summary Answers
1997 Cadillac DeVille d'Elegance 4.6L driver's side power mirror VIN: 1G6KE54Y2V
1997 Cadillac Catera 3.0L Cooling System VIN: W06VR54R0V
Well folks looks like we are going to put this one to sleep. Thank you guys for you input and information. Customer decided to let it go as is. When things go bad on this car it becomes very costly to fix. I appreciate everyone's thoughtful input.
1965 Chevrolet CORVAIR 140CID flywheel VIN: 2435134545
Thanks to all that replied. It is really something to see how the labor time varied from a few different answers. I actually had fun working on this car. I appreciate all the help with the pricing and I was able to keep the customer and myself pleased. I h...
1995 Chevrolet K2500 Cheyenne 6.5L No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1GCGK24F85
WOW, this one was one of the GREAT ones...lol First I want to say thank you very much to everyone. I was chasing my tail towards the end there. I got hold of a tech 2 and tryed going back through the timing to no avail. After doing the relearn it still cut o... Trouble codes: 17 (high resoulition fault), 18 (Pump cam referance pulse), 35 (injector pulse width), 54 (TIO fault).
1996 Chevrolet K1500 Cheyenne 5.0L instrument lights,gauges VIN: 1GCEK19M8T
Hi guys I really want to thank you for all the replies on the truck.It turned out replacing the ignition switch solved my problem.Like I said I did not wanna keep replacing parts on this and you guys really came through.THANKS AGAIN!
2000 Chevrolet S10 2.2L MIL Lamp on VIN: 1GCCS1946Y
Since vehicle ran satisfactory customer declined more diagnosing. Customer has been driving the vehicle for three days now and it still runs fine. Sorry I don't have any more information and thank you to everyone who replied. Trouble codes: P1336 (CKP System Variation Not Learned.), P0463 (Fuel Level Sens CKT signal high/low).
2004 Chevrolet Astro 4.3L Poor Idle Quality, Misfire VIN: 1GNDM19XX4
Pinpointed cause to suspect lower intake gasket by sealing engine and smoke test through PCV port, smoke entered crankcase. Ruled out engine mechanical problems with compression test. Customer declined repair so unable to be certian of diagnosis. Trouble codes: P0303.
2000 GMC Sierra 1500 SL 4.3L oil pan VIN: 1GTEC14W3Y
Thank you for your replies as all of you said at the rear of the oil pan remove the two plugs and in there were 2 nuts. With that the oil pan is off and Iam now in the process on installing a timing chain tensioner. Thank You
2001 GMC Jimmy SLE 4.3L Misfire VIN: 1GKDT13W81
lots of good help offered. thanks guys, alot of the suggestions i had already tried including replacing the "spider", checking back pressure, and thanks to one of the guys I work with I tried a know good distributor and module off his truck and no luck, one su... Trouble codes: P0300.
1988 Oldsmobile Delta 88 Royale 3.8L fan speed VIN: 1G3HY51COJ
thanks for everyones help, it was the high speed relay. It tested fine, but had good ones fail before. Thanks RICK
2004 Oldsmobile Alero GL 2.2L passkey VIN: 1G3NL12F64
I relearned the system by following the steps provided by many members. After some probing I found the ignition switch was replaced by customer and this started it all. Seems that when this is done then you need to program but its not the keys that need progra...
2002 Saturn Vue 2.2L Poor Idle Quality, MIL Lamp on VIN: 5GZCZ23D52
OK guys how easy it is when you get the full story. Car had been in a wreck and had the battery replaced. UNfortunately one of the secondary grounds had come loose. Connected it up and problem over. Thanx for all the help but another strange one! Trouble codes: P0502.
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