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Professional Automotive Repair Technical Discussions for July 26, 2016 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2005 Chevrolet Express 2500 4.8L Ecm VIN: 1GCGG25V55 On first visit with same problem, replaced battery/mega fuse and cleaned all grounds. Ran fine Returned with no spark or fuel after 2 weeks. Has no communication with ECM. code U1088 |
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| 2007 Chevrolet Silverado 3500 HD WT 6.6L MIL Lamp on, Reduced power mode VIN: 1GCJK33697 sets p0101- maf performance in about 2 minutes after code clear, if it is warmed up. I did some reading & ID'd it as an 08 & observed the airflow leak equivalence ratio, which was .84-.86 with egr off. Maf is reading 44-45g/sec (3800Hz) idle with egr off. Maf ... Trouble codes: P0101 (Maf sensor performance) |
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| 2013 Chevrolet Avalanche Black Diamond LTZ 5.3L MIL Lamp on VIN: 3GNTKGE70D Smoke tested intake and exhaust non found. Replace Oxygen sensor OE bank 1 sensor 1. Clear fault and do drive cycle same fault is back? Trouble codes: P015B |
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| 2001 GMC Sierra 2500 SL 6.0L neutral safety switch VIN: 1GTHK23U61 rewiring neutral safety switch wiring have all wires found and run but the c2 connector neutral safety switch wire pin (b) lt green circuit 275 trans mounted neutral safety switch output park . found it runs to underhood fusebox connector c2(black)pin e-3 but ... |
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| 2002 Saturn L300 3.0L Interior lights, trunk release, door chime, A/C VIN: 1G8JW54R52 Vehicle has a number of intermittent electrical issues. Interior courtesy lights inoperable, electric trunk release intermittent, door chime intermittent, A/C compressor clutch inoperable. Aftermarket alarm/keyless entry/remote starter seems to work fine excep... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2013 Chevrolet Camaro LS 3.6L 1st Brake to 1st VIN: 2G1FA1E30D Well, the problem is internal. Replaced the transmission and all is good. I'll need to researched the flow charts to narrow it down some more. I know it's related to the two solenoids that turn off. Need to trace the flow of them. I just don't have the ti... |
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| 2007 GMC Sierra 1500 WT 5.3L No shift from 1st VIN: 2GTEK13M57 Was hoping for a more definitive way to diagnose this issue. Specifically how and why there was a VSS signal when symptom was present. The problem was with the reluctor wheel snap ring coming off and allowing the wheel to move side to side. By removing the VSS... |
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