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Prev Professional Automotive Repair Technical Discussions for August 30, 2006
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Open Help Requests for GM
Help Request Answers
1998 Buick Century Custom 3.1L engine VIN: 2G4WS52M1W
this more for direction after diagnosis than an actual fix, just need opinion from those of you with alot of experience on this engine especially after the fact on repairs. Car came in with lifters raising all kinds of h@ll, but oil pressure warning not on. ...
1994 Cadillac Seville SLS 4.6L Excessive Emissions VIN: 1G132A12Q3
Hello techs, This vehicle stinks real bad especailly during warm up. I have no access to Gas Analyzer. Plug in my Soulus, o2 readings around .900v when cold til warm up. Then switches real fast .200-.800 (havent seen anything this fast). Also spark advance -20...
2001 Cadillac DeVille 4.6L electric window VIN: 1G6KD54YX1
I need to replace the window regulator in this Caddy, and for the life of me can't figure out how to get this door panel off, without destroying it...I removed the switch panel & found a nut holding the armrest, but the armrest still wont come off...no visible...
1987 Chevrolet Monte Carlo SS 5.0L clutch VIN: 1G1GZ11G1H
Car came in shop ,could not put in gear unless shut off. Checked hydraulic system everything OK.Removed clutch assembly to check pressure plate etc. Seemed OK but replaced anyway & had flywheel machined.Worked great.Now its back , same problem but only when cl...
1990 Chevrolet Lumina Euro 3.1L Cuts out, Stall VIN: 2G1WN14T7L
Hello all, This car will just up and quit (Like the key was turned off) most of the time when it is accelerated hard. Hard meaning all the way to the floor. Very seldom will it quit when just normally accelerated. Sometimes if you let off the accelerator it w...
1992 Chevrolet Corvette 5.7L starter VIN: 1G1YY33P7N
Hi, this corvettes starter sounds like it has a bendix kicking in and out when warm or hot and id say thats what is happeneing with it. I got this from another shop. The repair history is the original starter bound up and fried, They installed a new delco unit...
1994 Chevrolet Camaro Z28 5.7L Poor Idle Quality, Misfire VIN: 2G1FP22P1R
Car has an intermitant noid or no noid on all injectors. Engine always runs rough or stalls. Never do all 8 injectors have noid at the same time. Cleaned grounds, checked fuses, ok, installed reman computer, checked continuity on wires from pcm to injectors, a...
1997 Chevrolet S10 4.3L Hesitation, Surge VIN: 1GCDT14X7V
This little S10 doesn't get a lot of miles but it is used about every day. Friday I recived a report it was surging pretty bad, I also found the exhaust smelled pretty bad as if the converter was plugged but that's not the case. From 0-30 mph at part throttle ...
1998 Chevrolet K3500 Cheyenne 5.7L Misfire VIN: 1GCHK34R9W
hello i have probably a dumb question but i'm getting lost on this one and i shouldn't.engine has miss on cyl 3 at idle missfire counts are continuois.if you bring it up to 1500 rpm the counts seem to stop.replaced injector for cylinder 3 since it failed ohms ...
2001 Chevrolet Monte Carlo SS 3.8L Hesitation, Surge, Cuts out, Misfire VIN: 2G1WX15K51
plugs wires,plugs all filters. map sensor fine, maf fine,could i lack flow in fuel but have pressure? i can't get any other codes i drove it with fuel pressure gauge on my lap and as soon as your driving and step on it pressure stay right at 55-56 never drops ... Trouble codes: P0300
2001 Chevrolet S10 2.2L tailights/fuse box VIN: 1GCC519551
Has anybody encountered fuse box issues on thi trus truck,..started with turn signal issues,..replaced multi-function switch,.for erratic signals,..was fin for a while,.then the siganl stat went erratic,..replaced it,..fine for a while then no tail lights,..wa...
2002 Chevrolet Silverado 3500 6.6L No Start, Stall VIN: 1GCJK33162
we have a 2002 chevy 3500 with the duramax which came in on the hook. engine lost power and died while pulling a load at highway speed. first scan check showed dtc p0087 (rail pressure low) but dtc didn't come back. customer replaced fuel filter on the road ri... Trouble codes: 0087 (fuel rail pressure low while high pressure commanded)
1992 Geo Prizm 1.6L a/c VIN: 1Y1SK5467N
When the car came in it had no a/c. Once checked I found that the #6 circuit on the a/c amplifier (blk-yel) had no power wich is fed from the dual pressure switch wich does have power going in and coming out but is not making it to the amp. between the amp. an...
1997 GMC K2500 Sierra SL 6.5L No Start VIN: 1GTGK29F9V
this truck will not start after it sits for 3 or more hours. it will crank but not fire. fuel filter has air in it when this occurs. after i bleed it, it starts and runs fine. is there a check valve somewhere that is not working allowing fuel to drain back to ...
2004 GMC Envoy SLE 4.2L Battery Light VIN: 1GKDT13S64
Battery light comes on sporadically. Custome states, head lights pusled the last time, for 10 minutes. Battery light stays on with the key off. Not bright but dim, sometimes so vaint you hardly notice it. Doesn't always happen. Disconnected plug in terminal fr...
1995 Pontiac Grand Am SE 2.3L MIL Lamp on VIN: 1G2NE5SD2S
scan tool shows map sensor at 10 kp's, zero voltage. ran all available tests, 5 volt signal present from controller jumper to signal wire shows 5 volt all way to contoller connector, but never shows on scan tool. would assume faulty pcm. (tried two other pcm's... Trouble codes: 34 (map sensor signal low)

Fixes & Summaries for GM
Fix/Summary Answers
1995 Chevrolet Lumina APV 3.1L starting VIN: 1GNDU06D5S
replaced dist again rechecked ignition timing and dried the plugs...runs goos now i can reassemble...thankd for all your help
1995 Chevrolet Tahoe 5.7L Brake control module VIN: 1GNEK18K9S
Well thanks to those who replied. Finally after the third unit I was able to communicate and install this used unit and it works for now. Customer spent some change because I had to reinstall his original unit to wait on another used part. Several days later i...
2000 Chevrolet Malibu 3.1L MIL Lamp on VIN: 1G1ND52J4Y
I/we feel it's the balancer. Customer didn't want to spend any more money on it. The question remains, does the tach read from the 24x signal, or 3x? According to the books, it's 3x, yet the 24x seems to be the culprit in this case. Trouble codes: 336 (crankshaft 24x signal).
2001 Chevrolet Venture LS 3.4L MIL Lamp on VIN: 1GNDX03E31
hey guys sorry it took so long but customer picked up car and had to bring it back. Anyway pulled out maf sensor to clean it and discovered that when jiffy lube installed new air filter and performed fuel injector service they installed maf backwards. thanks f... Trouble codes: P0172.
1998 GMC C3500 Sierra SL 6.5L Stall VIN: 1GDKC34F0W
Wow, the overwelming favorite here is the fuel driver solenoid mounted on the side of the injection pump(8 of 9 replies).We replaced it and road tested extensively and can't get this truck to stall anymore.I will call this one fixed.Apparently there is a reloc... Trouble codes: P0238, P1216 (Fuel sol res time too short/This code is not currentFail since clear).
2004 GMC Sierra 1500 SLE 5.3L radio VIN: 1GTEK19T84
We were able to reprogam the radio properly after reading the replys we reveiwed our selections for programing and realized we had not looked thru all the options and had selected the one for the wrong RPO this caused our problem.Being able to run issues by ot...
1989 Oldsmobile Delta 88 Royale 3.8L Cuts out, Stall, MIL Lamp on VIN: 1G3HN54C8K
i would like to thank you guys for all your advice and help. it came in handy. we replaced the module and coils and we had no more problem, the car ran like a champ. i guess i missed something when i tested the spark before. thanks again for all the help. Trouble codes: 13 (o2 sensor), 22 (tps volts low).
2000 Pontiac Grand Am SE 3.4L MIL Lamp on VIN: 1G2NF52E8Y
Thanks to all who replied, once again even the replies that were not the fix informed me of some new helpful info for down the road such as expected voltages and bulletins. The problem on this one ended up being the fuel filler neck leaking between the metal t... Trouble codes: P0440.
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