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Professional Automotive Repair Technical Discussions for August 15, 2017 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1994 Chevrolet P30 7.4L Excessive Emissions VIN: 1GBKP37N5R Good afternoon Techs. I have this class A motor home that has a GM 7.4 that runs very rich on cold start up. Looking at scanner data everything looks good except it has a MAT reading of -40 and has no codes. I have looked for a manifold air temp sensor and can... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1998 Chevrolet Camaro 3.8L Cuts out, Stall VIN: 2G1FP22K3W Looking at the wiring diagram I found the ignition control module shares its ignition voltage with the evap vent solenoid, evap purge solenoid and 2-3 shift solenoid. This problem was happening more so when the vehicle was warmed up. I found the evap purge so... |
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| 2002 Chevrolet Trailblazer LS 4.2L No Start, Long crank VIN: 1GNDT13S42 Fuel pressure, volume and quality all good. No loss of injector pulse or spark. Special thanks Jeff [...], removed cam position solenoid pigtail, lots of oil leaking into connection. Replaced solenoid, cleaned pigtail. Vehicle starting as designed, no more pr... |
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