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Prev Professional Automotive Repair Technical Discussions for April 22, 2005
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Open Help Requests for GM
Help Request Answers
1989 Buick Regal Custom 2.8L No Start, Stall VIN: 2G4WB14WXK
When vehicle gets to full temp it will stall and stumble and when it stalls out it wll not resart .Check for spark and fuel after stall and both up to specs.
1994 Buick Park Avenue Ultra 3.8L Poor Idle Quality, Hesitation, Misfire VIN: 1G4CU5213R
customers' car at idle or acceleration will have a light miss, 1 week ago, we changed the spark plugs, fuel filter and performed a fuel system cleaning, the recommendations were made based on the fact that when the vehicle was scoped, 2 to 3 cylinders were fou...
1996 Buick Century Custom 3.1L Hesitation, Surge VIN: 1G4AG55M9T
Need a little advise please, have a 1996 buick 3.1 came in with low power on accel reinstalled egr (on backwards), replaced tps. Perfomance was a little better after repairs but not much scanner shows a lot of knock sensor noise and any time you accelerate tim...
1994 Cadillac DeVille 4.9L Air Ride Suspension VIN: 1G6KD52BXR
Hey Everyone, We've Got This Deville In With A Air Suspension Problem. The Info Center Has A Service Air Sespension Message Coming Up On The Dash. I Pulled Codes And Found I039. The Problem Is The Relay Has Already Been Installed To Bypass The RSS Module By Th...
1999 Cadillac Seville STS 4.6L Steering VIN: 1G6KY5499X
Hello Cadi techs, I installed a steering wheel position sensor on this vehicle & know the service stabilty system comes up on the display. I checked for codes & code is C1283. Most guys say i did not install the sensor properly. Does any body have the proper p...
1994 Chevrolet W4 Tiltmaste 5.7L starter solenoid circuit VIN: 4KBB4BAXRJ
No wiring schematics,relay, or component location info from AllData or ADS as this is bigger than a 1 ton. I am trying to find out where the wiring from the ign. switch crank (blk/wh 10 ga.) goes to on it's way to becoming a white wire at the starter solenoid ...
1996 Chevrolet Corsica 3.1L Hesitation, Surge VIN: 1G1LD55M2T
This car is from a local used car dealer. I'm dealing with an idle surge shortly after start up. I've checked fuel pressure/volume and for a leaking regulator-all ok. Spark plugs are brand new Autolite double platnium. Wires are oem. I've been watching scan da... Trouble codes: P0420 (CAT Efficiency)
1997 Chevrolet Camaro Z28 5.7L MIL Lamp on VIN: 2G1FP22P2V
hey guys thanks in advance for taking time out of your busy scheldule. vehicle came in with check engine light and egr code malfuction code. checked out system and replaced egr with new. now that's fine. customer wanted to do maintenance due to age. performed ... Trouble codes: P0135, P155, P0133, P0153
1999 Chevrolet Corvette 5.7L abs system VIN: 1G1YY22G4X
apparently i filled this out wrong.sorry,its the first time.
2000 Chevrolet Malibu LS 3.1L 2nd gear accelration at 40-50% load from 15-25 mph VIN: 1G1NE52J5Y
original complaint was for surging on highway between 55 and 70 mph on light accel. This surging was originally very duplicateable on the highway before the trans replacement and also trans was slipping and chattering on takeoff. Now trans has been replaced bu...
2001 Chevrolet Venture LS 3.4L EPC Solenoid VIN: 1GNDUO3E31
This came in for hard shift concerns and after scanning, found code for bad EPC Solenoid. I replaced EPC and still had same problem. Replaced with 2nd new EPC and also internal wire harness and checked valve for movement and still get code when van is started....
2001 GMC b7 school bu 8.1L aux brake warning VIN: 1GDL7T1E71
the auxillary brake warning light and buzzer come on intermittently. most times when you cycle the key it light and buzzer stay off. As neer I can tell this system is looking for an open in the circuit, but I can not find any such thing. I tried switching the ...
2000 Pontiac Bonneville SSEi 3.8L steering coloumn VIN: 1G2HZ5412Y
This SSEi bonneville has a heavy sounding (not loud just heavy) clunk or rattle when driving at slower speeds and hitting very small bumps in road. (almost like the old loose lead dampner in steering wheel trick). only notice when going straight. It sounds lik...
2002 Pontiac Aztek 3.4L chime VIN: 3G7DB03E02
customer is complaining of an intermittant chime...3 successive rapid "dings"... no warning lights come on at the time of chime. i could not duplicate it during numerous parts runs yesterday. customer returned today and took me me for a short drive and i heard...

Fixes & Summaries for GM
Fix/Summary Answers
1993 Buick Regal Gran Sport 3.8L steering shaft VIN: 2G4WF14L7P
COuld not get column reassembled to my satisfaction, so I located a used unit, (which I wanted to do in the first placfor reasons of cost and turnaround time) installed it and all is well.
2003 Buick Rendezvous CX 3.4L No Start, Stall VIN: 3G5DA03E73
Education is a wonderfull thing . Only two replies , but boy what a good bunch of information was contained . First , the starter clue was no clue at all . The starter will continue to try even with the key released for a few seconds or untill it gets a run si...
1993 Cadillac Eldorado Sport 4.6L Mechanical VIN: 1G6EL12Y5P
Thanks for all the responses. I didnt think there would be a problem but needed to hear it from others I guess. transplant on it's way from washington this coming week. Great price...compression...oil pressure and warranty. Again, thanks Scott [...] Wrights A...
1997 Cadillac Seville SLS 4.6L MIL Lamp on VIN: 1G6KS52Y2V
Thanks to all. Special Thanks to Charles [...] They was right. On the back of the intake manifold there is a (trap door) (pop-off) valve and it was leaking. Trouble codes: P0174.
1998 Cadillac DeVille 4.6L oil light blinks VIN: 1G6KDS4Y8W
thanks to all who replied found with scanner oil switch read oil pressure with engine off had already put two delco switchs in engine went to caddy and bought one customer has drove car 1500 miles and no light
1983 Chevrolet Chevette 1.6L MIL Lamp on VIN: 1G1AB68C7D
Thanks to all that replied. Thomas [...] called it by the right name which helped me get my head around this concept. The 'Tach Filter' is a capacitor. With this title in mind, I took the old one to Radio Shack to try to identify it and learned that the more c...
1993 Chevrolet C3500 Silverado 6.5L Mechanical VIN: 1GCGC33F0P
Sorry for taking so long to close this help request. We ended up changing the injectors and this helped a big part of the problem. We no longer had the engine miss and the truck didn't smoke when running. However, the next morning, when the client went to star...
1995 Chevrolet C1500 Cheyenne 6.5L No Start VIN: 1GCEC14SXS
thanks to all of you who replied to my post, I recieved many helpfull ideas on this diesel driveability problem. I ghecked for 5v ref. at baro sensor, and this checked out good.I also checked for fuel delivery to inj. pump,this also seems to be good. the fuel ...
1997 Chevrolet Lumina 3.1L No Start VIN: 2G1WL52M8V
hello I want to thank everyone I though I close this a few weeks ago must be the system. well for those that said it was cranf sensor on rear of block were right, But I want to thank everyone for their help Thank you all
2000 Chevrolet Silverado 2500 6.0L high trans. line pressure VIN: 1GCGK29U6Y
front pump was not flat allowing fluid to run across to other channels. thank guys for the responses.
2000 Chevrolet S10 2.2L Surge, Cuts out VIN: 1GCCS1445Y
Thanks to all who replied, this puppy runs smooth again. As i posted the truck would cut out violently at tip in and slightly above that point, i had noticed this problem once on decel. I have already graphed my tps on the vantage meter and it looked fine, whe...
2003 Chevrolet Avalanche 1500 5.3L radio volume,warningbuzzer VIN: 1GCEK14T4T
thanks has not happened again?thankyou to bobby from was simaler
2004 Chevrolet Suburban 2500 LT 8.1L compressor VIN: 3GNGC26G64
First of all, I would like to thank everyone for their replies. First, I tried to reprogram all motors with the tech 2 and it would not accept reprogramming due to bo229, it was a hard code and could not be erased. I was starting to lean towards a bad recircul...
1993 GMC K1500 Suburban SLE 5.7L poor A/C VIN: 1GKFK16K6P
Hello techs, first I want to excuse me for this late note. Thanks to all technicias that took their time to help me. I made the diagnosis: the control panel and the blend motor was bad and when I present the quotation to my customer he said to me that hi is go...
2000 Oldsmobile Alero GL 2.4L Poor Idle Quality VIN: 1G3N152T71
Thanks for the replies. The TPS value of 3.50% was incorrect i disconect the batery for a longer time than the first time and then the tps value reset to 0% the car is running good. with 680 rpm at idle, the costumer have to day with the car and say that the p...
1995 Pontiac Bonneville SE 3.8L Cuts out VIN: 1G2HX52K8S
The fix was the positive bat. double stack in between the two at the spacer.never caught a drop in voltage checked after reading reply taped into cable with volt meter and drove till problem occured again then saw a drop in voltage customer had car at several ... Trouble codes: P0321, P0341, P1630, P0117, P0112, P0123.
2001 Pontiac Sunfire SE 2.2L 1-2sol VIN: 1G2JB52401
It way a blown ERLS fuse in the IP fuse block. Circuit 439 (pink) is possibly shorted to ground at the Evaporative Emission (EVAP) Canister Vent and Purge solenoids at the rear of the vehicle near the fuel tank retaining strap and rear suspension. Thanks Eric ...
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