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Professional Automotive Repair Technical Discussions for February 18, 2006 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1985 Cadillac Seville 4.1L Brake pedal VIN: 1G6KS6980F Customer complains of low pedal and unsafe feeling. States has always been this way since she's owned vehicle. She has owned it for several years, but not since new. Other shops have told her that's how these cars are, and I would have agreed, except she has a... |
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| 1976 Chevrolet Corvette Stingray 5.7L front brakes VIN: 1Z3716S414 Hi, I have a 76 vette that came in with the brakes pulling hard, even while driving in the parking lot, and low pedal.Found the master leaking and calipers leaking. Rotors thin. Replaced master, booster, calipers ,rotors ,pads and hoses. Also replaced leaking ... |
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| 1989 Chevrolet K1500 Cheyenne 5.7L MIL Lamp on hey guys , code 32 keeps coming back have replaced ecm. replaced egr&solenoid replaced lazy o2 sensor cleaned egr passages goes about a week at the time after fix before light returns. what have i missed any suggestions would be highly appreciated thanks guys. Trouble codes: 32 (egr flow malfunction) |
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| 1997 Chevrolet Lumina 3.1L Unknown VIN: 2G1WL52M7V Cust called to make appointment for trans problem. Stated veh was normal until he came to a stop and heard or felt a clunk, and when he pulled away veh had no power. At the next light, veh acted normal again. It acted up a couple more times like that(seemed to... |
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| 2002 Chevrolet Trailblazer LS 4.2L throttle VIN: 1GNDT13S02 Hello everyone, we have this 2002 Trailblazer that keeps coming back with fault codes (P1221 excessive difference between throttle position sensors, P1271 excessive difference between acceleator pedal position sensors, P1635 5v ref. A circuit) The first time w... Trouble codes: P1221, P1271, P1635 |
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| 2002 Chevrolet Tahoe LS 5.3L intermediate steering shaft One of our customers and several acquaintances with late model Tahoes and the other full size vehicles using the same platform have continuing complaints about a clunking noise under the hood that can be felt through the steering wheel while turning. Most of t... |
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| 1989 GMC V1500 Suburban 5.7L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 1GKEV16K9K This vehicle was towed in with a rough running concern. It seemed to be missing at times but the most noticeable and easily duplicated concern is a steady surge of about 200RPM at idle in park or neutral and also at higher (ie 2000RPM) RPM ranges while in park... Trouble codes: 44 (Lean exhaust) |
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| 1998 Pontiac Grand Prix GTP 3.8L Misfire, MIL Lamp on VIN: 1G2WP5216W Engine looses power when supercharger boost comes in. Feels like loss of fuel. Both O2 sensors read the same. No misfire in cyllinders #2 and #6. #4 and #5 miss the worst. Runs perfect unless under load. New spark plugs, fuel filter, air filter. P0300, multipl... Trouble codes: P0300 (multiple cyllinder misfire) |
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| 2002 Pontiac Montana 3.4L MIL Lamp on VIN: 1GMDU03E42 With key on, all modules have no codes and data can be read, after starting, will not communicate data with aftermarket scanner (snap-on), and these codes all return. When abs module left out of circuit, all can be read but code u1040 comes back. Have checked ... Trouble codes: U1040, U1040, U1300, C1298 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1990 Cadillac DeVille 4.5L Stall, Misfire VIN: 1G6CD5330L After several hours of testing and retesting and then some hair pulling I got it out of the car owner that she tought the problem was worse after the last shop replaced the distributor. I decided to buy a new one even though I could find nothing wrong with the... Trouble codes: 49 (air injection system problem). |
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| 1999 Chevrolet Express 3500 LS 5.7L coolant loss VIN: 1GAHG39R7X HELLO TECHS the fix for the chevy exp. van was as most allsaid , needed lower intake gaskets.we never saw one thatjust leaked internally , the ends of gaskets completelydestroyed. thanks for all the help on this gave us thestart on getting this job on the book... |
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