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Prev Professional Automotive Repair Technical Discussions for September 17, 2007
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Open Help Requests for GM
Help Request Answers
2001 Buick Park Avenue 3.8L instrument cluster VIN: 1G4CWS2KXY
hello all, i have a problem with the instrument cluster on a 2001 buick park avenue. the customer first came in after she had to jump her car & after she got it running the needle on the fuel & temp gauges had rolled all the way around until they were on the o...
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1985 Cadillac DeVille 4.1L Electronic Level Control VIN: 1G6CD6989F
Hi all, Electronic (Air) level control inoperative on this caddy. Compressor operates if I jump the green test connector to ground, and the air shocks dont leak (amazing!). The compressor does kick on in normal operation, but only will run for about 10 seco...
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1989 Chevrolet C1500 Cheyenne 5.0L Poor Idle Quality, Surge VIN: 1GCDC14H1K
I need help please I have this 89 chevy that acts like it is not getting enough fuel but other times it runs great fuel pressure is of the spray pattern looks ok the coolant sensor has been replaced (not by me) and seems to be reading ok , the tp sensor looks ...
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1992 Chevrolet G20 Beauville 5.7L Hesitation, Surge VIN: 1GCEG25K2N
Hi chevy techs, first time asking for help, hope I get you enough info. I have a 92 chvy g20 5.7l TBI that came in lacking power. I scanned the system and found a very lean condition at cruise. a visual inspection of the injectors showed a very rough spray pat...
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1994 Chevrolet K2500 Cheyenne 6.5L Cuts out VIN: 1GCFK29S8R
added 4 foot harness to pmd.moved to behind grill.pmd was mounted on heat sink on manifold.had been working fine.after moving to grill it worked fine for 40 miles then sat for 2 days.after 1 mile truck stalled but restarted.the truck then shut off severaltimes...
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1997 Chevrolet K2500 Suburban 7.4L rotors VIN: 1GKGK26JXV
This vehicle came in with ft brake pulsation . It has cross drilled rotors on it . My question is: Can you machine these or are they replacement only?
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1999 Chevrolet Corvette 5.7L Automatic Door Locks and Loss of Key Fob Memory VIN: 1G1YY32G4X
Hello to all we have a 99 vette that has a problem with the automatic door locks and a "loss of memory" on the key fob. We have used new fobs with the same rusults, works for five to ten minuites then nothing.We can reprogram as soon as it stops working,works ...
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2000 Chevrolet Blazer LS 4.3L headlamps VIN: 1GNDT13W6Y
1st time customer brought me this vehicle today with no headlights on dim and no DRL operation. She explained her son and his buddy had replaced headlamp switch and some more components trying to fix the problem.She did state that all old parts were reinstalle...
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2002 Chevrolet Tahoe LS 5.3L MIL Lamp on VIN: 1GNEK13T52
Hello domestic techs, I am an import tech and not familiar with this code. This code was previously cleared, came back on a couple months later, now comes back on, on the second "trip". The diag proceedure says to monitor the missfire counter to determin the ... Trouble codes: P0351 (Ignition coil 1 control circuit malfuntion)
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2002 Chevrolet Trailblazer LS 4.2L 4wd VIN: 1GNDT13S52
Greetings fellow techs, Our local GM dealership is driving me nuts on this one. Vehicle came in with CK 4wd light on and no reverse in Transmission. Rebuilt tranny and reverse operates normally. Another tech scanned original TCCM for the CK 4wd light on. Came...
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2003 Chevrolet Silverado 2500 HD 6.6L Tempurature VIN: 1GCHK2913E
This truck pulls a large travel trailer and when was pulling an 11 mile grade on a hot day, when the customer noticed that the trans. temp. was getting hot. So when he found a place to pull over and let it idle, the engine overheated as well. After he let it...
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2005 Chevrolet SSR 6.0L MIL Lamp on VIN: 1GCES14H15
Hello I'm trying to access EFI codes of this SSR (check engine mil ON - no driveability concerns). Problem is my "generic OBDII scan tools are not working with this car. I tried with DRB3 and Launch X341. Is there some detail about this EFI system/protocol t...
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2005 Chevrolet Suburban 1500 LS 5.3L abs VIN: 1GNFK16Z85
A friend stopped by tonight. He has had his truck back to dealer 3 times for this problem that does not leave a code. He is still under warranty but I think dealer is lost. I left my shop under medium acceleration and just before it shifted the traction contro...
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1993 GMC Sonoma 2.8L Hesitation VIN: 1GTCCS14R7
This 2.8 showed up with no fuel psi replaced pump+tune parts. Has no power at full throtle.Idles fine.No codes any one out there seen this.See repairs done.Thanks william [...]
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2001 GMC Sierra 1500 SL 4.3L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GTEC14W41
CUST CAME IN WITH A P0300. DID MAJOR TUNE UP. STILL HAD MISFIRES ON B2. CHECKED FUEL PRESSURE, COMPRESSION, AND INJECTOR BALANCE, AND TIMING. ALL OK. REPLACED CAM SENSOR DO TO CORROSION IN DISTRIBUTOR. REPLACED POPPETS FOR TSB UPGRADE TO MPFI INJECTORS. RECORD... Trouble codes: P0300 (random misfire)
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1992 Oldsmobile Cutlass Supreme 3.4L engine swap
Hey sorry for the lack of a VIN all. I have a real nice 92 Cutlass supreme available at the shop with a digital dash, full leather and a busted 3.4. I also own a 92 lumina with a 3.1 and an auto, but the body sucks. Anyone done a swap from 3.4 to 3.1? Just loo...
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1998 Pontiac Grand Prix GT 3.8L No Start, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G2WP12K8W
Customer States Vehicle will stall and not start for a while When vehicle runs it is fine. Sometimes while driving down express way vehicle will stall out and nothing will happen. Never loses voltage just will not start. Scanned Vehile and und mil code there w... Trouble codes: P0336, P0420, P0442, P0440
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1999 Pontiac Firebird Formula 5.7L Alternator VIN: 2G2FV22G6X
Could use some help, what am I missing here. Have heard that ground issues on these can eat alternators sometimes, have already installed a separate ground wire. Any ideas anybody?
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2002 Saturn Vue 2.2L axle seal (right side) VIN: 5HXVX23F02
I would like to know if some has had this problem and how they fix it, thank you, Andy
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Fixes & Summaries for GM
Fix/Summary Answers
2000 Buick Regal LS 3.8L Poor Idle Quality, Cyl 4 misfires VIN: 2G4WB55K14
Thank you all, especially those of you who said broken valve spring. I would have never believed it. I grew enough balls to pull the back valve cover. What bozo designed that? What a stupid design. Anyway, once I got the cover off the springs looked ok. ...
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1996 Chevrolet C1500 Cheyenne 5.7L Misfire VIN: 2GCEC19R3T
Thanks Mark from Nebraska, it was the intake gaskets that the customer put on 2 years ago, we took the intake off and found the gasket sagging right at #4. Won't forget this one, now if only I could fix the dodge in my other help request. Thanks alot people ... Trouble codes: P0300 (Misfire detected).
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1998 Chevrolet K1500 Suburban LS 5.7L Coolant VIN: 3GNFK16R8W
Hi all!! Thanks for all the great responses!!! Most who responded had the right idea-the intake manifold gasket-but the reason it was leaking was not because of the gasket being corroded, it was because it had been replaced before and the intake bolts were...
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1998 Chevrolet S10 LS 2.2L Starting VIN: 1GCCS1947W
Well I REALLY appreciate all of your responses and your valuable time. Unfortunetly the problem never got solved. The customer didn't want to put any more money into it. However to summerize, I felt that we were very thorough with the circuit using a schematic...
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1999 Chevrolet C3500 7.4L 2000 rpm at idle VIN: 1GBKC34J0X
thanks to all who replied,this one is fix the problem was the iac wires shorted in the harness near the firewall.i fixed them now it idles
5
2001 Chevrolet Monte Carlo SS 3.8L a/c clutch VIN: 2G1WX15K81
I was unable to fix the a/c problem on this vehicle. After much analysis, I came to the conclusion that a new pcm was needed but the customer declined to spend that kind of money. So I guess we'll never know! Thanks to those who replied. Those that actually...
5
2001 Chevrolet Silverado 1500 4.8L Misfire, MIL Lamp on VIN: 2GCEC19V41
Yes it worked! I replaced the intake gaskets and afterwards performed the CKP variation calibration. The 'check engine light' is off, the customer is happy and so am I! Thanks again to everyone who replied. Trouble codes: P0300.
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2003 Chevrolet Suburban 2500 LS 6.0L RF Speaker VIN: 3GNGC26UX3
I got a few replies, and tried to use that info but couldn't get the vehicle to act up- I really did hear the noise myself-. I called Bose and they weren't much help at all. The customer has been checking in to see if I have any ideas, but he is using the vehi...
5
2006 Chevrolet Aveo LS 1.6L ABS light VIN: KL1TD56606
Well, having a Tech 2 does help. The Snap On scanner is suposed to comunicate per the Technicians at Snap on, but no go. Tech 2 shows loss of speed sensor code on the right front...Duh! The sensor does ohm check fine and the scope pattern looks good on the rac...
5
2008 Chevrolet Uplander LS 3.9L back up alarm VIN: 1GNDV23W98
I waited to post fix because I had hoped to come up with more info,but apparently there is none. On uplevel models,which these are not,it is possible to turn off this feature through the driver info center.Thanks to David for the info on that. What we did,as ...
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1995 Pontiac Bonneville SE 3.8L Steering VIN: 1G2HZ52145
THANKS ALL THAT REPLIED, CK PRRSURE AT PUMP AND WAS OK, CK EVO WIRRING AND WAS WORKING FINE. CK PRESURE HOSE FOR RESTRICTION AND SEEMD OK. PUT ANOTHER REMAN STEERING RACK IN CAR AND WORK GREAT. MUST HAVE BEEN RESTRICTION IN SPOOL VALVE IN RACK. THANKS AGAIN F...
12
2001 Pontiac Montana 3.4L Poor Idle Quality VIN: 1GMD403E01
checked grounds and wiring to the ecm , all was okay so it must have been the ecm . the customer did not want to proceed any further so he took the vehicle , said if he decides to fix it he would let me know , o well its his option .. thanks guys
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