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Professional Automotive Repair Technical Discussions for August 3, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1989 Buick Reatta 3.8L abs VIN: 1G4EC11C2K Hi all, We have this 89 Reatta with the ABS light on, the code we get is 21 for main valve, when we run Mitchells test it says problem is intermittent, and if you clear the code it will not reset untill car is driven forward it will not reset in reverse. When ... |
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| 2000 Buick Regal LS 3.8L ignition lock VIN: 2G4WFS51XY vehgicle intermittently will not return to the release position for the key to be removed. you have to to giggle the key or rotate it back and forth sometimes several times to get it to release. moving floor shift or giggling shifter does not seem to effect th... |
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| 1990 Cadillac Seville 4.5L MIL Lamp on VIN: IG6CD5336L greetings - this Caddy is throwing code E48 (EGR). MIL illuminates only during freeway driving, approximately 20 miles or more. customer has me clear it out about once a week so he doesn't have to look at it. within the past six months, i have replaced the EGR... Trouble codes: E48 (EGR system problem) |
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| 2000 Cadillac Eldorado ESC 4.6L mirror fuse VIN: 1G6EL12Y6Y Customer recently purchased this vehicle,keeps blowing underhood mirror fuse,interior lights also on the same circuit. Only blows fuse when vehicle is put into reverse,removed rear seat and both relays for back up lights,still will blow fuse when put into reve... |
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| 1985 Chevrolet K20 Scottsdale 6.2L No Start, Poor Idle Quality VIN: 2GCGK24J0F Customer brought the vehicle in complaining of no start after 5-20 min hot soak. After checking starter draw and glow plug circuit (Replaced two glow plugs that were bad. All glow plugs omn out at 1.1-1.5 omns)and finding good I diagnosed injection pump at fau... |
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| 1994 Chevrolet Camaro Z28 5.7L engine valve train VIN: 2G1FP22P7R This engine has a strange noise when warm. When I first heard it I would have guessed a dry rocker arm. Noise is a strange metallic rubbing or tapping that is in time with valve train. We pulled both valve covers and no problem found in rocker arm area. Could ... |
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| 2002 Chevrolet Trailblazer LS 4.2L Hesitation, Stall VIN: 1GNDS13S42 This vehicle arrived with customers request to install a fuel filter to repair a stalling problem.(Problem just started that same day)After filter installation, vehicle was driven and seemed perfectly normal until about 5 miles into the testdrive. All at once,... |
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| 1990 Geo Tracker 1.6L No Start, Poor Idle Quality, Surge, Stall, Misfire VIN: 2CNBJ18V0L This 1990 Geo may have multiple problems. I am aware that the new computer may have damage to the injector driver circuit. Because of this I ran some voltage waveforms on the positive and ground side of the injector along with current ramp waveforms. Some othe... |
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| 1995 GMC Jimmy 4.3L engine VIN: 1GKDT13WSK hi guys hope you can help me with this problem. this noise starts up after engine runs for about 3 to 4 minutes. noise can be heard at front of engine and seems to carry to back. it rattles at higher r.p.m. and stops after 2400 r.p.m. drive and driven gears on... |
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| 1996 GMC K2500 Suburban 7.4L cv AXLE VIN: 3GKGK26J3T Help, oh please help. This is my wife's vehicle and she is driving me up a wall. I believe that the problem is caused by her turning the wheel too hard to the left when backing out of the driveway. She, of course, is rejecting this explanation out of hand. She... |
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| 1993 Pontiac Grand Am SE 3.3L Poor Idle Quality, Surge VIN: 1G2NW54NOP HEY YA'LL IVE GOT THIS GRAND AM 3300 NO CODE;S IN ECM , DOSEN'T SEEM TO DO THIS AT ANY OTHER TIME ,idle up and down in park at idle only cold or hot CLEANED MAF IAC THROTTLE BODY AND CURRENT RAMPED INJECTORS CHECKED O2 WAS SLOW ON RESPONSE REPLACED 02 . TESTED... |
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| 1998 Pontiac Grand Prix SE 3.1L Starting VIN: 1G2NJ52M6W This vehicle was towed in with a no start condition. I found that the battery was dead. Charged battery and then load tested battery. Test showed that the battery was good. The starter was bad. Replaced starter and noticed that when you turn key off that the i... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1995 Buick Skylark Custom 3.1L Downshift VIN: 1G4NV55MXS I Do Believe That Everyone's Response That The Problem Lied Within The Valvebody Is correct; However The customer Wanted A Firm Price, Which I couldn't Do Until I Dissassembled It. Customer Opted Out Of any Further Time To Be Spent. |
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| 1997 Cadillac DeVille d'Elegance 4.6L splash shield VIN: 1G6KE52Y1V Thanks, gentlemen, for the prompt replies - Both replies said to replace the belt with updated # - The TSB for that # was not listed in my ShopKey so I opted for the Dayco Polycog belt - AND, I installed a shield I fabricated as the local dealer said they had ... |
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| 1985 Chevrolet G10 Sportvan 5.0L No Start, No spark VIN: 1GBEG25H5E Most of the replies targeted the electronic spark control or the pickup coil. I had a few folks that suggested bypassing the esc module, but there were two differing opinions as to how this was done. Do you short A&C wires or B&C on the distributor side of the... |
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| 1991 Chevrolet K2500 Cheyenne 5.7L Mechanical VIN: 1GCGK24KOM Replacing the combination valve as suggested by several replies fixed the problem with this truck. Thanks, Chad |
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| 1991 Chevrolet C3500 Silverado 5.7L front brakes VIN: 1GBJC34K8M Thanks to all my brother and sister techs, who bust their knuckles, sweat and toil over hot vehicles trying to make a living! Ya'll were right on with the brake hoses!! I just could'nt believe with only 37,595 miles on the beast, that brake hoses could be faul... |
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| 1992 Chevrolet S10 Blazer 4.3L Cuts out, Stall VIN: UNKNOWN Thanx everyone for all the help.The problem was nothing but a bad gas tank filling up the filter.Needs new tank,filter,clean the lines and all that stuff... Joe [...] |
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| 1997 Chevrolet Tahoe LS 5.7L convertor VIN: 1GNEK13R0V Most replies pointed to the TCC solenoid/valve area as the problem. This was what I suspected after verifing that the torque convertor clutch had not welded itself to the torque convertor housing. The TCC solenoid (part# [...]) has a cone shaped screen in t... |
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| 2000 Chevrolet Prizm 1.8L Hesitation, Cuts out, Stall VIN: 1Y1SK5285Y Thank you to all that replied. The new Mass air sensor did indeed fix the problem, (albeit $90 later). I appreciate the input. |
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| 2000 Chevrolet Impala 3.4L Fuel tank VIN: 2G1WF52E7Y I replaced the charcoal canister and apparently this has fixed this vehicle. It is driven in an area with a lot of gravel roads so I'm guessing that it was a dirt and dust problem as described by some of you. Thanks, Chad |
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| 2000 Chevrolet Blazer LS 4.3L Stall VIN: 1GNCS13W1Y thanks for the replies. replaced the fuel pump module & car seems to be fixed. this car was the first one i have had with these symptoms & now have had 2 more. thanks again!!! |
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| 1997 GMC C1500 Sierra SL 5.7L Poor Idle Quality, Misfire VIN: 1GEK19R9VE Most people agree the poppet valve design is a problem. Most said cleaning will work but he had it done with a machine and still has the miss. The best solution I believe is a permanent repair. There is a new style with electrical injectors located where the p... |
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| 1986 Oldsmobile Cutlass Ciera Brougham 2.8L hard start VIN: 1G3AM19W9G well thank you evveryonw tjat sent me help. i have yet to fix this problem and will update this when i do . i have spent too much time tring to condem the injectors and i have yet to find them bad. as many of the post recomend . |
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| 2000 Oldsmobile Silhouette GL 3.4L cruise control VIN: 1GHDX03EIY both replies indicated the brake light circuit grounded the cruise circuit. turns out it was burnt out brake light bulbs |
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| 1995 Pontiac Grand Am SE 3.1L horn VIN: 1G2NE55M2S Thanks to all who replied. It appears that Gerry of New Jersey nailed the problem, although the problem was not what I thought it was. It wasn't the horn relay that was stuck. It was a problem with the horn sounder, or pad, as Gerry said. I discovered this wha... |
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| 2000 Pontiac Grand Prix GT 3.8L 2-3 shift solenoid VIN: 1G2WP52KXY most all of the replies dealt with the shift and pressure solenoids, however I have replaced these along with the wiring harness inside the trans to no avail, any other ideas? I am all out... |
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