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Professional Automotive Repair Technical Discussions for November 11, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2004 Cadillac CTS 3.6L No Start, Defective New PCM's VIN: 1G6DM57734 OK, Diagnosis thru IATN & Identifix sources was fairly straight forward, a bad PCM. The oem PCM had no communication. The power mode read all key positions fine. Replaced it with a Reman Delco unit [...]. Once installed before programming the key would retu... Trouble codes: U1000 (Class 2 Comm Fault) |
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| 2004 Chevrolet Silverado 3500 6.6L Low power VIN: 1GCJK33164 This truck has no power. Already replaced the turbo. High fuel pressure matches desired. Low fuel pressure has 2-4 hg vacuum. Smoked checked the intercooler and found no leaks. Going down the road the boost will get up to 30 psi. |
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| 2006 Chevrolet Colorado LT 3.5L Hesitation, Stall VIN: 1GCDT13656 This vehicle laid down on me once after driving it nearly a hundred miles. That was a month ago when I replaced the PCM. It came back after 800 miles. The "reduced engine power" message comes on the dash and it loses power to a point of staling sometimes. Afte... Trouble codes: P0101, P0068 (Map/MAF throttle position correlation), P0106 (MAP or Baro), P0171 (Lean), P0446 (Evap vent control) |
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| 2003 Saturn Ion 1 2.2L Starter VIN: 1G8AG52F53 When cold and the vehicle is attempted to start, the starter relay, in a rhythmic fashion (Once per second roughly), will pulse voltage to the starter solenoid. Static battery voltage of 12.4 volts. The battery has been replaced recently for the same issue els... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2013 Chevrolet Silverado 2500 HD LT 6.6L injector punp VIN: 1GC1CXC86D Thanks for all the help. I was not holding the pump at the correct angle. Once I did it fell right in. I have had the flu for a week so I have the pump in but have not finished the installation. Sorry I cannot tell you about the condition of the injectors yet.... |
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