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Professional Automotive Repair Technical Discussions for December 18, 2005 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1998 Chevrolet K3500 Cheyenne 7.4L MIL Lamp on VIN: 1GCHK39JXW happy holidays men ! this truck was taken to the dealer because it broke-up under full throttle, misfire, and set code po103. i replaced spark plugs to colder range and 34 gap. reset intake metal piping to supercharger, just after maf, so it did'nt intrude ins... Trouble codes: P0103 |
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| 1999 Chevrolet C1500 Suburban 5.7L Poor Idle Quality, MIL Lamp on VIN: 3GNEC16RXX First sign of problem started with the engine being hard to start when hot (Summer) - cold starting never a problem. Problem progressed into rough idle, heavy fuel smell, but engine runs and performs smooth above idle. Parts replaced: New Delco Plugs, New Roto... Trouble codes: P00, 172 (System too rich left bank), P00, 300 (Eng. Misfire detected) |
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| 2001 Chevrolet Silverado 1500 4.3L MIL Lamp on VIN: 1GCEC14W31 Got a 01 Chev pickup in the shop the MIL was on. Seems to start and runs fine. Pulled PO codes out, P0 341 CMP sensor out of range. P0 345 CKP/CMP cordination problem. I have ordered a distributor gear and I plan on slotting the distributor hold down clamp. Ac... Trouble codes: P00, 341 (CMP sensor out of range), P00, 345 (CKP/CMP cordination problem) |
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| 1996 Oldsmobile 88 Royale 3.8L Misfire, MIL Lamp on VIN: 1G3HN52K2T This car came in with two codes. P0171 and P0300. When you drive the car it will run fine for a few minuets than starts to loose power and will pop occasionally at speed under load.. Like it's lean. I drove the car with my fuel pressure gauge taped tothe winds... Trouble codes: P0171 (Lean fuel trim), P0300 (Random miss fire) |
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| 1992 Pontiac Grand Am SE 3.3L Poor Idle Quality, Surge, MIL Lamp on VIN: 1G2NE14N3C Customer recently bought this lemon. This 3.3 will intermittently surge at idle and set a 26 and 27. When this occurs the integrator will drop to 80 with blocklearn at 113 and the IAC will read 0%. According to shopkey the ccp sol,cooling fan relay,ses,tcc sol... Trouble codes: DTC, 26 (QDM failure), DTC27 |
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| 1994 Pontiac Trans Sport 3.8L Surge, Cuts out, Misfire VIN: 1GMDU06L9R hello fellow technicians, i need assistance with a transport that is being difficult. i have a 94 pontiac transport that feels like an ignition misfire affecting several cylinders that occurs under light load (1500 - 2500 rpm) while accelerating from a stop, o... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1980 Cadillac Eldorado 5.7L Excessive Emissions, Stall, FLOODS VIN: 6L578AE651 i wish i could say i've fixed this ,but not yet-i'm still working on it as time allows.most replies on this concerned the coolant/air temp sensors-i did switch sensors as they are interchangable with no improvement.the car will start but then run rich as it wa... |
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| 1994 Chevrolet C1500 Suburban 5.7L Misfire VIN: 1GBFK16K5R We found a leaking intake gasket under the intake, many good replies. Thanks to all and especially Todd from Wisconsin. We suspected it and decided to take a chance and just pull it off. |
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| 1997 Chevrolet Express 2500 4.3L Hesitation VIN: 1GCFG25W5V Hello everyone, After we replaced the 1-1 o2 sensor the van acted up yet for the rest of the day. The customer needed the van back and drove it for 2 days and when it returned for further diagnosis it never acted up again (possibly needed to learn the new o2??... Trouble codes: P0135 (o2 sensor 1-1 heater circuit). |
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