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Professional Automotive Repair Technical Discussions for March 17, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1997 Buick Park Avenue 3.8L fuel gauge VIN: 1G4CW52K1V Customer complained that her fuel gauge didn't register correctly. We saw that the fuel gauge needle was actually on the wrong side of the little stop peg. Pulled the cluster and coaxed the needle to where it belonged. The gauge then appeared to work normally.... |
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| 1992 Chevrolet C3500 Cheyenne 5.7L Hesitation VIN: 1GBJC34KON Thank you in advance. We have this vehicle diagnosed for a bad fuel pump again. The 5 fuel pumps in 8 years is a guess, but I would say an accurate one. The last fuel pump was replaced within the last two years. We replaced pump, sending unit (both delco parts... |
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| 1995 Chevrolet Cavalier 2.2L Excessive Emissions VIN: 3G1JC1241S Hoping for some help with this cavalier. It fails the 40km/hr part of the emissions test (ASM2525) with high co readings. the limit is .44% and it's reading .85% (idle limit is 1%). If a hole is drilled in the pipe just before the convertor (for back pressure ... |
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| 1995 Chevrolet K2500 6.5L No Start, Cuts out, Stall VIN: 1GCGK29F6S Thank you for your time. Customer brought vehicle he had just purchased because of a stall and no start problem. I ran tests, but everything worked fine. Had injector driver codes stored, but didn't fail any tests. Took extended test drive and showed no proble... Trouble codes: 36 (Pulsewidth too long), 35 (Pulsewidth too short) |
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| 1996 Chevrolet Blazer 4.3L 1-2 shift 2-3 shift VIN: 1GNDT13W1T HI fellow techs, i have a real problem here! have this 96 blazer that came in for a check engine light, 2 codes p1122, and p1406. these are tps and egr pintle pos. car shifted funny also, replaced vcm after checking 5v ref and related tsb gm#66-65-06. vcm fixe... |
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| 1997 Chevrolet Express 2500 5.7L overdrive VIN: 1GCGG25R0V I have this van that came in with a 4L80E transmission with shifting problems approx. 18 mo. ago. You can be driving at highway speeds 55-60 mph and lightly accel and trans either goes into neutral or I suspect 1st gear. Trans shop overhauled and returned to c... |
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| 1998 Chevrolet Express 1500 5.7L Coolant VIN: JN1CA31D91 This Van Came In 6 months ago with oil in radiator At that time we suspected oil cooler in radiator leaking.It also at that time had intake gasket leaking (can you belive that)so we repaired the gasket flushed the coolant system and replaced all the oil soked ... |
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| 1998 Chevrolet K3500 Cheyenne 5.7L convertor VIN: 1GCHK34R5W i would like to know if anyone has run across this and knows what is wrong with the convertor? after vehicle gets hot ,idling with your foot on brake ,when you put in gear on occassion it will kill motor. we have tried it numerrous times and the motor will sta... |
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| 1998 Chevrolet Tahoe 5.7L Misfire, MIL Lamp on VIN: 1GNEK13R3X Hi Techs This problem has being on going and the customer has adapted to the problem. I only occurs under heavy engine load. I did go through the archives and a common comment is that this problem will occur if you dont use a gm dist cap the one I put on this ... Trouble codes: P0300 (random miss fire) |
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| 2001 Chevrolet Malibu 3.1L brakes VIN: 1G1NO52J71 Vehicle came in for brake service, replaced front pads, surfaced rotors,rotor thickness good. clamped off front hoses,opened bleeders returned pistons. have tried manuel bleeding sequence from Shop Key, still no luck. Don't see any bleeders on ABS module. When... |
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| 2001 Chevrolet Silverado 2500 HD 6.6L Cooling Systems VIN: 1GCHK23191 Mysterious coolant loss. Highly suspect coolant entering one or more cylinders. The engine is very clean and there is absolutely no signs of a coolant leak but the engine is consuming about a half gallon a week. After a long pressure test of cooling system, th... |
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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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| 1998 GMC Jimmy Envoy 4.3L No Start, Stall VIN: 1GKDT13W5W Hi Everyone Have this 1998 Jimmy in the shop that will just stall intermittently and not re-start. The first time it just restarted after a few mintues. The last 2 time was towed and I jumped in and it started first time. I a thinking fuel pump but can't prov... |
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| 2000 GMC Safari SL 4.3L transfer cas VIN: 1GKEL19W4Y Does the Mastertech communicate with the transfer case and display data? I am able to go to all modules feature and induce trouble codes for transfer case and also clear them at this screen. When I go to transfer case under powertrain section, it displays 'wai... |
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| 2000 GMC Yukon XL 1500 SLE 5.3L steering assist VIN: 3GKFK16T7Y I have read all fixed post on this condition.The steering will catch or bump usually turning left and in a.m. Experience & knowledge had us replace the column mounted speed sensor 1st. It returned - we replaced the fluid flow control valve actuator on the back... |
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| 1996 Oldsmobile Cutlass Ciera 3.1L Hesitation VIN: 1G3AJ55M3T we put master tech on vehicle and all componets are reading to specs. vehicle drives like it just come off the showroom floor for about twenty minutes then starts to struggle for power during acceleration at 1/4 throttle. convertor checked out ok. once we thro... |
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| 1999 Oldsmobile Intrigue GL 3.8L abs VIN: 1G3WS52K8X Hey guys, Im having trouble with this intrigue. I have a Snap-on scanner and can't follow all the steps in the MOD flow chart. This car has the ABS and Brake lights on and codes 1246 and 1286 and as soon as you clear them and start it up they come right back. ... |
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| 1994 Pontiac Trans Sport 3.1L Poor Idle Quality, Hesitation, Stall VIN: 1GMDUO6D1R hey gm guys need some help here. cold start flare ok. aprox. 5-10 secs after engine hunts up and down severly sometimes shuts down sometimes not. as soon as it goes close loop smoothes out but not as good as it should. vacuum is ok. replaced egr valve. port se... |
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| 1997 Pontiac Sunfire GT 2.4L Poor Idle Quality, Stall, Misfire VIN: 3G2JD12T5V hi; hope someone can help we got this one in for a no start when it got here it fired up but would not idle well hooked up the scan tool and found multiple cylinder missfire code po300 and number 2 cylinder missing constantly. i have checked the coil towers an... Trouble codes: P0300, P0302 |
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| 2000 Pontiac Montana 3.4L abs & ? VIN: 1GMDX03E3Y vehicle came in with complaint of poor brake pedal feel(hard). upon visual inspection we noted that it needed front brakes and rotors,also the rear wheel cylinders were seeping and one of the proportioning valves were leaking under the van.after repairing the ... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1992 Buick Skylark Custom 3.3L Cuts out, Stall VIN: 1G4AN54NXN Sorry for late, but i have to wait customer's call, finally she call me yesterday ,said'It looks O.K so far.She left here about 3 weeks ago. The main problem was R/D fan motor connector, it was burnt and had bad connection. When fan is not working(int) prope... Trouble codes: 31 (park/neutral switch /circuit problem). |
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| 1990 Cadillac Fleetwood 4.5L starter VIN: 1G6CB5331L First let me say thank you to all those who responded!!! After reveiwing all your thoughts on this we went over everything & yes we did use a delco starter - we had already dial indicaters on the flywheel checking for run out & carfully inspected the teeth aga... |
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| 1994 Cadillac DeVille Concours 4.6L tcc slip VIN: 1G6KF52Y0R First of all i would like to thank all the people that replied to me. Specail thanks to Brian from colorado, stephen from new jersey and lex from florida. you three gave me some valuable information regarding this transmission. After some careful checking i pu... |
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| 1997 Cadillac Seville SLS 4.6L windshield washers VIN: IG6KY5296V I received 4 replies. Andrew sent me a step by step procedure for testing the system that was right on the money. After I disconnected the harness at the Rainsense module at the top of the windshield,tested all the feeds as instructed and reattached it,it work... |
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| 1989 Chevrolet Corvette 5.7L Poor Idle Quality, Stall VIN: 1G1YY2180K i recieved alot of great leads on were to go with this vehicle- we found 3 injectors out of specs.-resistance too high-we also noticed that the egr was not closing all the way-someone responded that we should check the fuel regulator for fuel leakage and we fo... |
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| 1997 Chevrolet Astro 4.3L engine VIN: 1GNDM19WXV Thank You all that answered... I had the a/c juice removed. after returning to the shop, and letting the van cool down before removing the heads, I found a trail of coolant coming down the intake manifold. This started after the vehicle had sat for more than a... |
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| 2000 Chevrolet Venture Warner Bros. 3.4L DVD player VIN: 1GNDX13E8Y Thanks to all who replied,basically if powers&grounds are O.K. then you need to replace hardware. If my freind decides to fix it, then we will take it to the dealer. Thanks Again!!! Mark |
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| 2001 Chevrolet Suburban 2500 8.1L No Start VIN: 3GNGK26G21 finally got a fix on this one...turns out this engine had excess carbon build-up on the intake valves... I am told that these engines '8100' have higher than normal oil consumption we will likley have to replace intake valve stem seals to prevent a reoccurance... |
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| 1992 GMC Safari SLE 4.3L vibration VIN: 1GKEL19W5N Replaced trans mount and engine mounts vibration lessened and custumer has not returned with the same complaint. |
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| 1991 Oldsmobile 98 Regency Elite 3.8L burned up clock spring VIN: 1G3CW53L5M Summary of Replies. David from www.airbagcrash.com sent in a bulletin/procedure that made sure the spring is properly installed and we reviewed that to see if we have missed anything. After carefull examination of the steering wheel along with switches and com... |
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| 1992 Pontiac Grand Am SE 3.3L High Idle VIN: 1G2NW51N1N After I received all replies I had replaced IAC motor. It solved the problem. Thanks a lot for everybody who respond. |
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| 1992 Saturn SL 1.9L Stall, Misfire VIN: IG8ZK547XN the vehicle had a bad intake valve that was sticking went back to saturn for warranty thanks for the input |
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