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Professional Automotive Repair Technical Discussions for August 15, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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| (Also Available: All, Asian, Chrysler, European, Ford, GM.) | ||
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Open Help Requests for GM
| Help Request | Answers | |
| 1991 Buick Century Custom 3.3L Poor Idle Quality VIN: 1G4AH54N0M Engine idles rough when as soon as it goes into closed loop and integrator goes down to 80 and smells rich coming from tailpipe. Checked fuel pressure and pressure is at 42 psi. Checked vacuum and it is a steady 14 inches. Tried another mass airflow sensor and... |
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| 2000 Chevrolet Blazer LS 4.3L starter VIN: 1GNCT18W5Y 2000 ZR2 Blazer tries to start on its own especially when it is in the rain. |
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| 2009 Chevrolet C4500 Kodiak C4U042 6.6L Programming VIN: 1GDE4C1939 Installed new transmission control module (part from dealer). Performed programming with tech 2 (pass thru mode). Shows that programming was successful, but transmission warning light is on and gear position indicator does not show in gear indicator. When atte... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1999 Chevrolet Silverado 1500 4.3L Poor Idle Quality, Misfire VIN: 1GCEC14W0X Ok as i turns out the Misfire Counter said Cyl. 4 and 5 were Misfiring. After Checking these 2 Cylinders i Found Nothing Wrong. I then Unplugged each plug wire to check for Rpm Drop, Cylinders 1 2 6 Had no Rpm Drop Cylinders 4 5 and 3 all Dropped Rpm. So i R... Trouble codes: P0304, P0305, P0420. |
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