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Professional Automotive Repair Technical Discussions for December 30, 2013 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2003 Cadillac CTS 3.2L Gas Tank VIN: 1G6DM57N83 Vehicle came to me with ses light, and complaint of hard starting after fill up. code was Po496. replaced evap solenoid which fixed both issues.Customer called and asked to check a noise in rear of car. Here is the problem. With car running only, from the driv... |
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| 1981 Chevrolet Corvette 5.7L Buzzer VIN: 1G1AY8760B The buzzer for the seat belts, key-in, and doors will not shut off when key is removed. When ignition is put into the "run" position, the timer shuts the buzzer off. This seems to indicate that the switch inside the steering column is defective. However, that ... |
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| 2007 Chevrolet Cobalt LS 2.2L MIL Lamp on VIN: 1G1AK55F27 Orignally vehicle had check engine light with #P0604 control module ram fault. I pinned out the ECM powers and grounds no problem found. Recommended replace ECM. (My customer is a used car lot...) Installed USED ECM performed reprogram with TIS and changed vin... Trouble codes: P062F |
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| 2003 Other GM bus 6.6L 1-2 shift allison ctec 3000 transmission code 56-11 range verification test (between shift1). does anyone have specs. range chart for turbine and speed sensor. i have a 4 channel labscope and can compare both at the same time but i don't know what the should be.this is ... |
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| 2003 Pontiac Bonneville SE 3.8L Air suspension VIN: 1G2HX52KX3 This lady went to the local GM dealer with inop automatic rear leveling suspension. They estimated the repairs and offered the "cheaper" solution of eliminating the system with a spring-over-shock replacement. The ride was stiff and there was a lot of clunking... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1989 Chevrolet Cavalier RS 2.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: 1G1JC5112K Thanks to all who posted. I checked the EGR system and it was working good. I have sprayed down the intake several times and not seen any change on scanner. I found the TPS was very erratic. swapped and no more problems. |
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| 2002 Chevrolet Astro LS 4.3L No Start VIN: 1GNEL19X82 Thanks to ALL that replied. Turned out to be loose ground at frame! Thanks again!! |
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| 2003 Chevrolet Express 3500 6.0L No Start, Stall, MIL Lamp on VIN: 1GCHG39U13 Thanks for all the help, I tried everything that was suggested. The suggestions were spot on since I did everything already, I felt I wasn't way off base. Finally tried an ignition switch as a last resort because of the suggestions and every diagnostic procedu... Trouble codes: P1626. |
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| 2008 Chevrolet Avalanche LS 5.3L MIL Lamp on VIN: 3GNFK123X8 Well I decided to start with the accelerator peddle and plug .I cleaned the throttle body and replaced the pigtail . Although found nothing wrong with these items. She came back . for a no heat condition ( the stupid engine cover was pinching the heater hose d... Trouble codes: P0420 (Cat inefficency), P2138 (App 1-2 corrilation), P2119 (Throttle closed performance), P1380 (Misfire detected), P1175 (Fuel trimcylinder balance bank 2), P0690 (Engine control relay). |
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| 2006 GMC Sierra 1500 WT 5.3L Mechanical VIN: 2GTEK19B56 This is problem that I have endured over the last two winters. I just replaced the blower motor in July, because it had a constant squeak. I guess I just figured that the issue was solved towards the end of last winter, and what water ended up on it had just r... |
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| 2008 GMC Sierra 2500 HD WT 6.0L Limited power VIN: 1GTHC29K08 Well I talked to the driver today and all is well after a week and and half. Most respondents suggested a worn app module. Some suggested the throttle body or wiring. I checked the connections mentioned in the tsb's and all was well there. So since the codes i... Trouble codes: P2138. |
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