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Professional Automotive Repair Technical Discussions for August 16, 2008 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1978 Cadillac Seville 5.7L No Start VIN: 6S69B8Q505 To start this car you have to do what you would normally consider "clear flood". The difference is that by the wiring diagram, I don't think this dinosaur has "clear flood". The TPS is actually a Throttle switch and triggers the injectors if you press the acce... |
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| 1996 Chevrolet Blazer 4.3L Cuts out, Stall VIN: 1GNDT13W9T Customer brought vehicle in with complaint of very intermittnent stall and restart. Test drove vehicle, it took almost 45 minutes under hot conditions to get it to act up. Found that it will stall under almost any load wether cruising at 65, under full throttl... |
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| 1998 Chevrolet Astro 4.3L No Start, Poor Idle Quality, Cuts out, Stall VIN: 1GCM19W1W1 Good Saturday afternoon all. If I'm not the only one working this late on a Saturday, maybe someone can shine some light on my van of the day. Customer towed to me this astro with no start. He replaced fuel pump and filter and after some sweat and tears broke ... |
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| 2000 Chevrolet Impala 3.8L No Start VIN: 2GIWF55E8Y Hello I have ths 2000 Impala that will sometimes start and throws the security light on. Also there are times that the vehicle hasn't started for the customer. I haven't had that for me. The vehicle came in with codes with codes P2958 and P2960. I ran tsb's a... Trouble codes: P2958 (passlock sensor learned voltage), P2960 (passlock sensor voltage range) |
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| 2000 Chevrolet Venture 3.4L No Shift VIN: 1GNDX03E7Y Howdy ya'll. What I have here is one sick Chevy Venture. It came to us with a check engine light and the vehicle would not shift when it got hot. Our transmission tech diagnosed it with a faulty tcc solenoid. He removed the side cover and replaced the tcc sole... |
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| 1998 GMC 8000 7.2L No Start VIN: 3BPNHD7X9W hope some cat guys can help me with this one truc came in with wiped out cam customer did not want to go for areman engine we get arunning 99 engine original engine has 40 pin computer new engine has 70 pin computer remove computer and engine harness from orig... Trouble codes: 19000 (engine overspeed) |
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| 1989 Pontiac Firebird Trans Am 3.8L Poor Idle Quality, MIL Lamp on VIN: 1G5FW2174K This little turbo 3.8 is very lean at idle. It acts like a large vacuum leak but none can be found. Fuel trims and O2 readings come back to near normal values above 1800 RPM. I have checked the intercooler,Blocked EGR, intake gasket,brake booster and all vacuu... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1998 Chevrolet Malibu 3.1L MIL Lamp on VIN: 1G1ND52M1W THANKS TO ALL MEMBERS WHO TRY TO HELP ME THE PROBLEM END UP BEING THE PCM BUT AFTER I CHANGE THE PCM I WAS STILL NOT READING 24X BECAUSE I BROCK THE REFERENCE BLUE WIRE AT THE SENSOR PLUG WHEN I WAS READING FREQUENCY AFTER THE WIRE WAS FIX EVERY CODE WAS CLEAR... Trouble codes: P0336. |
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| 2001 Chevrolet Express 1500 4.3L No Start, MIL Lamp on VIN: 1GCGF15WX1 Thanks for all the help. There were two problems keeping this thing from running. The first issue was the ignition switch after checking the pcm outputs we noticed that power was being cut off to the pcm while cranking. A new ignition switch and cylinder case ... Trouble codes: U1041 (No Communication With EBCM/ETBCM). |
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| 2003 Chevrolet Silverado 1500 5.3L Transfercase VIN: 1GCEK19T43 Thanks for all the help, I replaced the encoder motor sensor and have not seen any problems reaccur as of yet. Thanks again for all the help Chris |
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