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Professional Automotive Repair Technical Discussions for February 2, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1987 Buick LeSabre 3.8L Unknown VIN: 1G3HN5433H This is a strange one. Belongs to a cab company. Customer has a walkie talkie type two way radio. The radio is not connected to the car. When you key the mike the car cuts off. As long as you are within 3 feet of the car it will cut off when you key the mike. ... |
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| 1993 Cadillac DeVille 4.9L Excessive Emissions VIN: 1G6CD53B5P Hi, This car came in with a high nox failure. The egr tubes under the throttle body were stopped up, the timing was set at 25* btdc. Now these items are working fine, i can see the egr opening when the engine is loaded in gear. Looking at scan data,it doesn't ... |
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| 1994 Chevrolet S10 Blazer Tahoe 4.3L oil consumption VIN: 1GNDT13W1R after replacing injector,gaskets,plugs,vehicle ran fine for one day. customer brought vehicle back complaining of smoke from exhaust,and vehicle using 2qts of oil in 200 miles. we found plugs oil fouled,pulled plenum back off and found valley filled with oil. ... |
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| 1996 Chevrolet Blazer 4.3L MIL Lamp on VIN: IGNDT13W1T we have replaced all four o2 sensors and the catalytic converter and the lite keeps coming back on , the o2s seem to be working perfectly . |
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| 1999 Chevrolet K3500 7.4L Misfire, CODES VIN: 1GCHK33J0X CUSTOMER CAME IN COMPLAINING OF AN INTERMITTENT HEAVY MISS AND BACK FIRE THROUGH INTAKE.MORE PREVELENT AFTER EXTENDED HIGH WAY DRIVING. COULD NOT CONFIRM COMPLAINT ON TEST DRIVE. CHECKED CODES AND GOT PO339 INT CKP SENSOR PROBLEM AND PO341 CMP SENSOR CIRCUIT O... Trouble codes: P0339, P0341 |
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| 2001 Chevrolet Astro 4.3L Surge, Low power VIN: 1GCDM19W11 This van will intermittantly lose power, surge and detonate as if the fuel pump was going bad. Fuel pressure stays steady at approximately 64 psi when the condition occurs. A few weeks ago, the van got new plugs (AC), wires, cap, rotor, PCV valve, fuel filter,... |
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| 2002 Chevrolet Trailblazer LS 4.2L compressor clutch bearing VIN: 1GNDT13S82 This Trailblazer has a noisy compressor clutch bearing. NAPA lists a bearing for this unit, but to be sure it fit, I called GM for a part number to cross-referance, and was told the compressor is non-serviceable. Has anyone serviced this compressor with an a... |
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| 2002 Chevrolet Trailblazer LS 4.2L power windows and locks VIN: 1GNDS13S52 the power windows do not work at the front right and left, the rear windows do work from there own switchs, but not from the main switch. power locks do not lock or unlock from the two front switches, nore with the remote. I did notice that the rear door loc... |
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| 1978 GMC c10 5.0L Mechanical VIN: TCL448B501 I have a 78' model C10 truck that weights approx. 4500lbs. with a 383 motor that has 520 hp without NOS plus another 150 with NOS, with compression 11.3:1 and competition Cam 300AR, Victor Junior intake manifold and for the last five years It has been burning ... |
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| 1989 Oldsmobile Cutlass Ciera 3.3L Drive Belt VIN: 2G3AJ51N8K Hello Group, I need a swift kick in the brain on this one. The accessory belt is squealing; it's coming from the crank pulley, so one of the accessories is obviously locking up. More tension doesn't help, so the tensioner is adequate. I chaulk marked the crank... |
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| 1993 Oldsmobile Cutlass Supreme 3.1L Excessive Emissions, Poor Idle Quality, Hesitation, Surge VIN: 1G3WH14T1P Hesitation, very brief but strong, at initial accel. Long and short fuel trims, too low. 100 long and decreasing short trim at idle. Short trim will work down to 100, car will surge and short trim is back at 128 but working it's way down to 100 (30 seconds) fo... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1995 Chevrolet Monte Carlo Z34 3.4L tcc VIN: 2G1WX12X1S Well, the trans shop says it's fixed. It will be back today, and we will testdrive it again. But, I believe it's done. They took our core and pulled it apart. They figured out that the one they were giving us had a different valve body with different boost pre... |
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| 1997 Chevrolet Venture 3.4L oil pressure VIN: 1GNDX06E2V After much deliberating as to whether the customer wanted to try and change the oil pump (I wasn't going to guarantee that the problem would be fixed). The customer after talking to GM techs he knew, decided to go ahead and replace the pump. To say it is hard ... |
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| 1994 Oldsmobile 88 Royale LS 3.8L crankshaft VIN: 1G3HY52L9R Obviously this engine had high mileage and the intake was leaking coolant on the outside, but if it was leaking internally we don't know. I can't tell you if there was coolant in the oil before hand and we did'nt do an oil analysis. So then we can surmise that... |
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| 1995 Oldsmobile Achieva S 2.3L No Start VIN: 1G3NLSSD9S Thanks to everyone that replied. Most of you thought ground or wire problems. We have very cold temps. So car would not start in mornings. First we cleaned grounds, we did find some really corroded grounds near battery. Following morning no start. Battery seem... |
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| 2000 Pontiac Montana 3.4L No Start, Poor Idle Quality, Stall VIN: 1GMDU23E6Y Thank you to all who took some of their valuble time to help us. This one appears to be fixed. After finding the main connector at the PCM not fully seated, we went back to the basics and reinspected the IAC. We removed the IAC, plugged it in and actuated it w... Trouble codes: P0300, P0410, P0506, P0507. |
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