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Professional Automotive Repair Technical Discussions for January 5, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1994 Buick Roadmaster Limited 5.7L body seals VIN: 1G4BT52P6R We have this Roadmaster with a water leak under the dash on the left side of the car. We have tried everything we can think of to stop it and everytime we think its ok then the first rain, the floor is very wet. Running water around the windshield shows no lea... |
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| 1996 Buick Regal 3.1L Running Warmer VIN: 2G4WB53M5T Customer states that engine is running warmer than usual. Have verified this. Engine is not overheating. Just running warmer than usual. Have found #2 cooling fan relay is not being energized by PCM. Have done everything except check wiring harness wiring from... |
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| 1989 Cadillac Allante 4.5L consul fuse #8 VIN: 1G6VR3188K Hi guys I have a drain on battery of 900ma from fuse #8. It will go away after disconnecting the BCM. Mitchell on demand doesn't have a good diagram of BCM and wanted to know if this was a common problem with BCM or could it be something keeping it turned on.... |
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| 1984 Chevrolet C20 Suburban Custom 7.4L spark VIN: 1G8GC26W0E Truck came in with the complaint of no start under "cold" conditions. Pull distributor cap off 1 inch..turn key and truck will start everytime. I know it sounds strange. But any help would be greatly appreciated. |
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| 1992 Chevrolet Lumina 3.1L Excessive Emissions VIN: 2G1WL54T6N hey guys, car came in for failing nox on emissions test, pulled the egr valve and found passages pretty badly carboned up, i thought this was going to be an easy one, nox did not come down at all after reasssembly. oxygen level seems high to me, customer stat... |
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| 1998 Chevrolet Astro 4.3L Misfire, MIL Lamp on VIN: 1GNDM19W7W This van came in with customer complaining of check engine light on and running rough. I checked the codes and found a PO121 throttle position sensor code so I replaced the TPS and cleared the codes and test drove it and it ran great so I let it go. About a we... Trouble codes: P0121 |
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| 2002 Chevrolet Silverado 1500 4.3L Misfire VIN: 1GCEC14W12 Need some help with this silverado i had this truck come in about a month ago had a misfire code in it.It would barely run pull plugs they were fuel fouled checked cap and rotor witch had a ton of corrosion and moisture replaced both ran fine . two weeks later... Trouble codes: P0300 |
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| 2002 Chevrolet Silverado 1500 4.3L No Start, Stall, Misfire VIN: 1GCEC14W62 Towed in quit driver states that it lost power and started to miss and back fire, it finale died and wouldn't restart. I checked for spark have spark at plug's sounds like it is out of time. I looked at sensors on my scanner and the weird thing is the scanner ... Trouble codes: P0300 |
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| 1999 GMC Sierra 1500 SL 5.3L Ignition VIN: 1GTEK19T6X Hi everyone. Hope someone may have some suggestions for me. I have a '99 GMC Sierra 1500 4X4 that came in on a hook, customer stated that vehicle died while driving down the road. When ignition is turned to run position, the high beam indicator on the dash sta... |
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| 2000 GMC C3500 Sierra SL 6.5L battery VIN: 1GDKC34F2Y Happy new year to all techs . we have this gmc truck (it's our weld truck)this vech. does not get alot of use,the problem is this vech. has had three sets of batts . in the last year even with a dead switch installed on the ground side,so today we started to c... |
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| 1989 Oldsmobile Delta 88 Royale 3.8L Unknown VIN: 1G3HN54C2K the car is making a pop pop pop noise when braking. this noise is most noticable between 20 mph and complete stop. it sounds like a drum that was not macine properly and is alowing the pads to scew out and snap back to the backing plate. the drums have been ma... |
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| 1997 Oldsmobile Aurora 4.0L Stall, MIL Lamp on VIN: 1G3GR62C9V Vehicle came in with PO101 code performed diag from Alldata for code and found sensor dirty cleaned sensor and test drive code gone. Return to customer they drive for 2 days PO101 resets go through checkout and replace Mass Air Flow sensor with new AC Delco Se... Trouble codes: P0101 |
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| 1999 Oldsmobile Alero GL 2.4L No Start VIN: IG3NL52TXX Well this vehicle was towed in as a "no start". The customer had replaced the spark plugs in an attempt to repair it himself. The plugs he took out were wet with gasoline. I was able to get what Snap-on's Vantage considers an acceptable waveform from the CKP s... Trouble codes: P0463, P0705 |
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| 2000 Pontiac Grand Am SE 2.4L engine missfire VIN: 1G2NF52T7Y well hello all!i have a freind with a nice one-it just started to miss all at once-we pulled the quad cluster(coils and module out)we could not see any tracking-only one plug was wet-i was wondering if anyone has ran into this problem,with this engine-i am at ... |
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| 1997 Saturn SL2 1.9L No Start, Cuts out VIN: 1G8ZK5276V car was running fine. Just stalled while driving, and would not restart. No code. Checked systems,leaning to fuel system to be problem. Reason for that is that when I just crank it it will start and die. Then will only restart with foot to floor. Then will die... |
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| 2000 Saturn LS2 3.0L pressure VIN: 1G8JW52R4Y Hello. this is not in my normal work load and i am not sure if i am correct on this, this car came in with the service light on ---only-- after it warms up and is in lots of stop and go with lots of upshifting, this is not the check engine light, i only have 9... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1995 Buick Riviera 3.8L starter VIN: 1G4GD2212S thanks to everyone who replied.with the ohm test info some of you suggested i was able to determine it was the key cyl. the wire is broke at the cyl. waiting for customer to save up money to repair. again thanks. mike [...] |
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| 1994 Chevrolet Cavalier RS 2.2L No fluid coming from bleeder in abs unit VIN: 3G1JC1140R We finally got the true story from the customer, he has been having this problem for a year and a half. It has been to garage after garage, but no one could seem to fix the problem, (Or didnt want anything to do with it due to fluid contamination). There has... |
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| 1995 Chevrolet Lumina LS 3.1L Poor Idle Quality VIN: 2G1WN52M8S Thanks for the plethora of valuable information. There must be a ton of GM techs on this forum! Anyway all the replies were very helpful. After fitting an EGR block off plate and having the customer drive the car for 4 days, the rough idle never returned. What... |
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| 1995 Chevrolet Tahoe LS 5.7L abs VIN: 1GNEK13K3S thanks to allthe guys who came to the rescu we replaced both front abs sensors with the hub assimblies and that fixed it. i realy appriciate all the help from all. mike |
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| 1996 Chevrolet Astro 4.3L Fuel Injection VIN: 1GCD19W9TB First, thanks for all the replies. I learned a lot, and that is never wasted time. I finally took the uninterrupted time to just DO this thing. I had a reman distributor and properly positioned it, only to have the crankshaft sensor code pop up after installat... |
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| 1999 Chevrolet C1500 Suburban 5.7L engine VIN: 3GNEC16R9X i received a few ideas on this. i know that manufacturers say that 1 qt. per 1,000 miles is normal usage. in my opinion this is there way out,(of course we all have opinions). i replaced pcv valve with updated one from gm & we will see what happens. thanks for... |
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| 2000 Chevrolet Astro 4.3L Misfire VIN: 1GCDM19W6Y Hello to all.good news. astro is fixed! being my first help post,I failed to include new fuel pump & filter in related repair history. sorry to all.re-scaning van 'cam retard' reading -12. removed distributor insected gear and was worn.istalled new gear,fine t... Trouble codes: P0300 (random misfire). |
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| 2001 Chevrolet Silverado 1500 4.8L Differential VIN: 2GCEK19V71 Thanks to everyone who replied! Special thanks goes out to Rusty from Michigan, the idea about marking the tires and checking them again after about 10 rotations proved simple and effective. Even though during the visual inspection I had checked tire size(all ... |
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| 1989 GMC S15 4.3L No Start VIN: 1GTCT1422K Thanks to all who replied. This truck had two problems, one being that the 12 volt supply from the ecm to the fuel pump relay was intermitantly failing. The other was the pickup coil. Thanks again to all who replied. |
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| 2002 GMC Yukon XL 2500 SLT 8.1L water in the oil VIN: 3GKGK26G32 Well I have not been able to find out any information on this vehicle. The pcv system in internal, somewhere under the intake manifold, Still do not know where it breathes from. I guess I will just have to put up with it or wait until I take it apart for somet... |
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| 1990 Pontiac Grand Prix SE 3.1L abs light VIN: 1G5WT54V5L Thanks for the replies, almost all pointed to the accumulator leaking causing the pump to run so often. New accumulator lists at $420.00. Customer is trying to catch his breath, will let you know if we get a chance to replace the accumulator and if that correc... |
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| 1995 Pontiac Sunfire SE 2.2L Surge, Cuts out, Stall VIN: 3G2JB124XS Well, after getting the replys, which had varing ideas, the fix for this fault was a torque convertor. It appears the torque convertor was slipping. Thanks to one and all for their ideas. |
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| 2002 Pontiac Grand Am SE 2.2L No Start VIN: 1G2NE52FO2 Thank for all of the replys on this bird. It seems that we either have a blown head gasket or a cracked head. At this time the customer is trying to get the dealer to fix it due to the fact that it is just out of warranty. I guess when we first checked the cyl... |
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