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Professional Automotive Repair Technical Discussions for March 18, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1995 Buick LeSabre Custom 3.8L No Start, Stall VIN: 1G4HP5215S car came in stalling frequently but would always start right up. checked codes. had codes po101, maf low, po341, camshaft error & po 1361 ignition toggle. all came up intermittent. we tapped & wiggled everything to no avail. we unhooked injector & plug wire on... |
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| 1990 Cadillac Seville 4.5L Poor Idle Quality VIN: 1G6KY533OL Hello, we are working on a STS with a original concern for intermittent stalling and intermittent idle a bit too high. Also customer was complaining that sometimes the service engine soon light would come on. We scanned and checked for codes, found tps code an... |
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| 1991 Cadillac Allante 4.5L No Start VIN: 1G6VS3383M Good morning fellow Techs, What I need is a wiring diagram of the fuel pump circuit on the vehicle in question a 91 Allante. It must be from the GM service manual. The information MOD & Alldata is not correct. Also I need the location of the fuel pump relay. ... |
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| 1992 Cadillac DeVille 4.9L Stall VIN: 1G6CD53B6N The customer states that when the fuel level is 12 gallons or less the vehicle will stall on decel from a slow speed, at idle or while driving at a speed just above idle (5 mph). The customer states that the fuel gauge has also read inaccurately after the stal... |
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| 1995 Chevrolet Cavalier 2.2L Poor Idle Quality, Misfire VIN: 3G1JC1242S customer has just bought vehicle from used car lot and it has a rough idle ,all sensors ect are opperating properly , fuel trim is in line , spark is strong , injectors test good etc, cyl # 1 if you pull the plug wire there is very little change in engine , if... |
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| 1995 Chevrolet Astro CL 4.3L Poor Idle Quality, Surge, Stall, Misfire VIN: 1GNDM19W0S this van has had a rough unstable idle for a while but had goten worse and customer wants to fix the problem. there was along with the unstable idle speed and idle surging black smoke at idle. fuel pressure was 55-60psi and held. the EGR was inspected and was ... |
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| 1998 Chevrolet Malibu 3.1L ABS light VIN: 1G1ND52M8W Hello fellow iATN techs. This one has me guessing what to do instead of having the information needed to do a through diagnosis. I have an OTC Enhanced 4000 scan tool with the '98' ABS cartridge in the tool. I also have all the appropriate cables hooked to the... |
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| 1998 Chevrolet Camaro 3.8L Misfire VIN: 2G1FP22K3W we first had a crank sensor code, so we threw a crank sensor on it, the problem still occurs, without a code now. Put new plugs and wires on it, and a new ignition module and one coil, and the car still misfires. everything else tests ok, tps, crank sensor. ti... |
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| 1999 Chevrolet Tahoe LS 5.7L abs VIN: 1GNEK13R6X Truck is pretty rusty, started by cleaning up some grounds. ABS activates on non-abs stops in the last 5-6 feet of a stop. No individual wheel speed sensor "drops out", I've experienced that before on other vehicles. One thing that's weird is when stopped, all... |
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| 2002 Chevrolet Suburban 1500 LT 5.3L Dash fire VIN: 1GNFK16Z12 We have a 2002 Suburban in our fleet that had a DASH FIRE. The driver parked it in the evening and came back the next day to find all the window black, and big cracks in the windsheild. The key was off, in fact the vheicle was locked. It burned about a 8" hole... |
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| 2003 Chevrolet 1500P/U 4.3L Broadcast VIN: 1GNDC13WX3 Customer called in with a stange question and I thought I see if anyone had run into this. Customer has a Nextel phone with walkie talkie and everytime he goes to broadcast with the truck running the signal gets chopped up. He has tried 3 different phones all ... |
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| 1997 Oldsmobile Cutlass Supreme 3.1L Excessive Emissions, Hesitation, Misfire, MIL Lamp on, no MAF on scanner VIN: 1G3WH52MOV This vehicle came in with a rough idle, lack of power, and C.E.L. for multiple cylinder misfire (po300), misfire counters on snap-on modis scan tool showed cyl. #4 misfires. Swapped spark plug and wire with another cylinder, no change, still #4 misfire. Ran co... Trouble codes: P0300 |
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| 1995 Pontiac Trans Sport 3.8L door locks VIN: 1GMDU06L6S fellow techs, thanks in advance for any help you may offer. i have this pontiac transport with the lh. drivers door lock actuator buzzing or humming at times. sort of like it is trying to actuate but doesn't have enough voltage to do it. it does it intermitten... |
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| 1997 Pontiac Grand Prix SE 3.8L 3rd gear VIN: 1G2WP5215W hey guys have this car here what i need to know is to pull the transmission do i have to pull the engine with it or can i just drop the tranmission any help i thank you have a great day god bless |
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| 1995 Saturn SL1 1.9L Hesitation, Cuts out, Stall VIN: 1G8ZH5286S Intermittently, but fairly regular when at a stop light, when you start to accellerate vehicle will cut out and die. Will Sart back up and then be o.k. with no other symptoms untill next stop light (maybee). Feels like a bad tps, but is sweeping good, and neve... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1996 Chevrolet Astro 4.3L dash gauges and starting well fellow techs this ended up being a wiring problem on the d5 circut. when the key was off there wsa power to the switch when the key was in the run/start position the wire would go to ground which would not start the van or run anything. what i did was run... |
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| 2000 Chevrolet Cavalier 2.2L service light VIN: 1G1JC5248Y Thanks for all of the help. It is just to let you know that the bcm has seen something out of order.This was just ahesdlight out. To bad the manuel can't tell you this.Thanks again for all of the help. DAVID |
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| 2001 Chevrolet Malibu 3.1L brakes VIN: 1G1NO52J71 I would like to say thank to all for the response to my post. as it turns out, the problem was in the rear brakes.Fresh ideas get you thinking after running into dead ends. Apparently the wheel cylinders had been replaced about 30,000 mi. ago and the customer ... |
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| 2001 Chevrolet Silverado 1500 5.3L axle seals VIN: 2GCEK19T51 Thanks again everyone of the 9 that responded. This group provides just the type of information I was needing. Eric [...] helped with the plastic vent piece mounted above the lf axle stub that was loose. I blew out the hose and made sure t... |
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| 2001 Chevrolet Impala 3.4L cooling fans VIN: 2G1WF52E31 thanks to all techs who took the time to respond. overwhelming majority said to try cooling fan relay(apparently a common failure item). vehicle had acted up twice in a three day period before replacing relay. been four days since replacement and no problems s... |
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| 1991 GMC Sonoma SLE 4.3L rear brakes VIN: 1GTDT19Z2M hi all fixed this truck. turned out to be low presssure from the master cylinder. other replies suggested bad replacement parts. thanks for the help!!! |
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| 1992 GMC C1500 Sierra SLE 5.0L Poor Idle Quality, Stall, stumble VIN: 2GTEC19H8N thanks to every one who helped. i went back and checked the dealers prior work and found a nut in the number 8 intake valve runner. the nut at times would get jammed in between the valve and seat holding the valve open. the nut pounded on the valve and seat re... |
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| 1996 GMC K3500 Sierra SL 7.4L 2-3 shift VIN: 1GTHK33J2T Thanks to all that replied.The original post was not 100% correct.After personaly driving the pickup I found it was stuck in 3rd gear until about 40mph then it would act like you kicked it out of gear. Michael [...] and Paul from Florida hit it on the head. ... |
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| 1987 Oldsmobile Toronado Brougham 3.8L 'Electrical Problem" seems 800 data circut faulty VIN: 1G3EZ1134H This car is gone!,after much testing and crummy bullitens from alldata, and a few techs reccomended the CPS central power supply, we still had no obvoius test results, all the test data supplied, our tests were inconclusive, finnaly reset computer and drove ca... |
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