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Prev Professional Automotive Repair Technical Discussions for November 3, 2004
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Open Help Requests for GM
Help Request Answers
1994 Buick LeSabre Custom 3.8L Cuts out VIN: 1G4HP52L4R
customer complaining of the vehicle stalling every once in a while. customer will be driving over 50mph car will stall out but start right back up. there are no codes. the car stalled out for us but starts right back up. just before it stalls it runs rough for...
1995 Buick Century Special 3.1L Cuts out VIN: 1G4AG55M0S
Hello to any GM mavens out there. I have an intermittent cut out that occurs after about 15 - 20 minutes of running - usually on decel or at idle, restarts immediately. I had it occur on the highway and took a snapshot with the scanner and all parameters looke...
1997 Buick Skylark Custom 2.4L Charging VIN: 1GANJ52T2V
This vehicle has a no charge situation. It has had 2 reman alternators put on in one month as well as a reman PCM which was replaced because of this same situation. I can control voltage to terminal L with the scan tool and yet it does not charge, I suspect th...
1998 Buick Park Avenue 3.8L oil warning lamp VIN: 1G4CW52L5W
hello, I have this Park Ave. that the customer is complaining of the oil warning light going on and the chime sounding for low oil psi. If you start the vehicle the oil psi on instrument warning center indicates 129 psi which is normal. If you accelerate in pa...
1987 Cadillac Eldorado 4.1L Poor Idle Quality, Stall VIN: 1G6EL1180H
Hey everybody! I'm getting killed by this eldorado. It was brought in originally for a/c work but when the customer picked the car up it was idling at 3000 rpms. I checked it out and noticed the ISC wasn't moving at all. I replaced the ISC due to a stripped ge...
1997 Cadillac DeVille 4.6L Stall VIN: 1G6KD52Y8V
Car runs great fuel trims seem fine takes along decel car shuts down and starts back up fine tried to get amovie on scanner but can not get car to die again cleaned throttle body relearned idle put in new fuel filter what am I over looking !DEVILLESSSS ! Trouble codes: P1599
1992 Chevrolet Astro CL 4.3L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy VIN: 1GNDM19Z5N
this is a van that i bought for my wife checking things out found that the fuel milage was not what it should be for this van checked into the problem found the timing was 8 degreis retarded un plug timing conector to set timing to base ran o/k untill i plug t...
1996 Chevrolet Lumina 3.1L long crank time VIN: 2G1WL52M6T
This car came in for long crank time. Customer reports this has been going on for some time. It seems worse when the engine is warm. It will crank for sometime then start and die or idle rough, if it dies it will long crank again if you give it some gas it wil...
1998 Chevrolet c7500 7.0L no throttle VIN: 1GBL7H1M8W
driving along shifting through gears, suddenly you have no throttle,engine goes to idle,i have no access to any info on anything bigger then 1 tons. local dealers no help. not familiar with bigger trucks with goveners on throttle.this is a local fire dept. wat...
1999 Chevrolet Metro 1.0L fuel injector VIN: 2C1MR226XX
no fuel coming out of the injector. there is fuel too the injector. used noid light to check injector no noid.there is 12 volts too the injector but the is no ground yel/blk wire. checked ground wire at computor. the wire is ok. what concerns me is the km's ar...
2000 Chevrolet Suburban 1500 LT 5.3L hard start hot VIN: 3GNFK16T7Y
customer complains of hard start after short hot soak, did motorvac twice for extened period, cleaned throttle plates, 58psi fuel pressure, i suspect stuck injector poppets but motorvac did not improve truck so customer says, he also complains of intermittant ...
2001 Chevrolet Silverado 2500 6.0L Vibration VIN: 1GCHK29U31
vibration started after the yoke and ujoints were replaced. the vibration starts at about 73 mph and stops about 85mph the transfer case was rebuilt, the drive shaft has been balanced at two different driveline shops, but still the same problem. removing the t...
1995 Oldsmobile 88 Royale 3.8L Poor Idle Quality, Surge, Cuts out, Stall, MIL Lamp on VIN: 1G3HN25K2S
Car came in light on code 171. Block learn 149 integrator `182. No crosscounts ever even on a long road test.Checked for vacum leaks non found.O2 sensor .45v or less always some times it will stay at .45 sometimes it will stay at 0 . Tried new o2 stayed same. ... Trouble codes: 171 (lean always)
1995 Oldsmobile Aurora 4.0L trans shifting VIN: 1G3GR62C4S
trans techs or anyone with exp.. on these 95- auroras.. who has seen these cars go out og o/d when the check engine lite comes on and now no third or o/d and have to rev up to 5k rpm to go,,,seems like a solenoid or relay disingage and no more high gear...***...
1997 Pontiac Grand Prix SE 3.8L Misfire, MIL Lamp on VIN: 1G2WJ52KXV
no repair, code sets when in idle or load, cyl one disconnected as well as injector has same misf. or no change at rpms happens intermediatly...replace injector,coil,wire, and spark plug...injector has pulse Trouble codes: P0301, P0300
1999 Pontiac Grand Prix GTP 3.8L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: 1G2WR1215X
This one has got me stumped. Intermitanly the engine will stumble very hard. When this happens, the lights flicker, the a/c compressor turns off, the alternator pattern flat lines, the ECM response by opening the IAC more. Once this happens everything stablize...
1999 Pontiac Grand Am GT 3.4L Hesitation, Surge, MIL Lamp on VIN: 1G2NW52E9X
Hi This is my first posting. This vehicle has P0327 code. Knock sensor and wiring test good. Alldata and Mitchell say if P0327 code is present with no 24X signal and no cam signal to use p0336 power and ground diagnosis. Found no power at Red/White wires (powe... Trouble codes: P0327

Fixes & Summaries for GM
Fix/Summary Answers
1988 Buick Electra Limited 3.8L Broken Hood release cable VIN: 1G4CX69B9G
Thanks for all the help as most replies stated this is not an easy task if it is broken at latch. Fortunately for me it was not broken at the latch I was able to pull on outer casing inside car untill it released
1990 Buick Century Custom 3.3L Steering VIN: 1G4ALS1N7L
Thanks for the help everyone. This is an older car and we have spent allot on it already. There is no safety hazard here so the customer has decided to continue using it the way it is and will see if it gets worse. Some have told me that a new balancer and a n...
1988 Chevrolet G30 Hi-Cube 5.7L rear brakes VIN: 2GBHG31K7J
Hey guy's, Sorry for taking so long to respond but this has been a very eventful week. As it turns out the drums where not only out of round but way over specs. The wear on the brakes since the last time this bus was in here was remarkable. The driver must u...
1995 Chevrolet Corvette 5.7L Throttle VIN: 1G1YY22P15
Hello All, I should have tested this car out first before asking for your help. The owner told me that the throttle went to wide open when you make a sharp right turn. Today the guy said that the throttle would stay at the rpm where you had the throttle set ...
1998 Chevrolet K1500 Cheyenne 5.7L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2GCEK19RXW
Thanks for all the responses. Yes it was a bad o2 sensor. BUT,the intake leaking oil onto the harness is what I believe took it out. When I unplugged the connector all kinds of oil came out. We did intake gaskets and valve cover gaskets. Cross our fingers it d... Trouble codes: P0300 (Random Misfire), P0153 (HO2S B2S1 Slow Response), P0174 (Bank 2 Lean).
1999 Chevrolet Silverado 1500 5.3L 4 X 4 and Directionals VIN: 2GCEK19T5X
'FIXED' I just love the sound of that word!!! I guess sometimes you should just SLOW DOWN. I checked and rechecked powers and grounds during the diagnostic process, We finally made some new ground wires and that is when we noticed that the Body shop had moved ...
1992 GMC Sonoma SLE 4.3L Poor Idle Quality, Hesitation, Surge, Stall VIN: 1GTCS19W2N
the fix for this vehicle was a combination of things there was a vacume leak inside the plenum 'cracked gasket' the supply lines were leaking the return line in particular, and the connector to the injector was loose and intermittant. replaced the lines ,injec...
1993 Pontiac Sunbird SE 2.0L Reverse Linkage VIN: 1G2JB14K2M
Sorry about not getting to a close on this sooner...between getting the customer in and having three different companies ordering the wrong cable it has taken longer than hoped for to find success. The problem was the cable, it was pretty freyed just out of si...
1996 Pontiac Grand Am SE 2.4L Hesitation, Cuts out VIN: 1G2NE52T3T
I am happy to report that I found the problem that has been affecting both of these Grand Ams. I decided to drive one of them to pick up some lunch and I realized that the initial 'cold' stumble went away when I pushed the clutch in. With the clutch in, I coul...
2004 Pontiac montana 3.4L wind noise
First I want to tell all that replied thanks, A friend of mine let me know that there was a bulletin #02-08-58-005A for this condition. Sealed up the seam under the windshield and all is well. Stephen [...] Jr. also had th...
2000 Saturn LS2 3.0L MIL Lamp on VIN: 1G8JW52R2Y
Waiting for customer to returnwith car. we replaced evap vent solenoid but customer called and said light is back on . will update when car returns and fix is complete. Trouble codes: P0455.
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