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Professional Automotive Repair Technical Discussions for April 26, 2017 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2005 Cadillac STS 3.6L ecm VIN: 1G6DW67775 Hey guys this 2005 sts was towed in to me as a no start, and had not been running for some time due to the same problem. When you push the button to start it it looses power to everything, simulating a bad battery connection. It has a brand new battery and ter... |
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| 2003 Chevrolet Silverado 2500 HD 6.6L vacuum diagram VIN: 1GCHK23103 I need EGR vacuum hose routing diagram with legible labeling or pictures of a EGR system that is intacted. Customer attempted to delete egr system for California emissions and failed miserably. He attempted to restore vacuum hose connections and mis-routed the... |
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| 2004 Chevrolet Silverado 2500 HD 6.6L Starting VIN: 1GCHC29284 Truck was towed in for a no start customer installed his own alt.no start or crank i have no communication with the pcm i have all my others computers firing up only code is U1000 in the BCM ive pulled the pcm connection i have power and grounds all the fuses ... |
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| 2004 Chevrolet Venture LS 3.4L Poor Idle Quality, Cuts out, Stall VIN: 1GNDX03E54 Got this car in as a know start. One of the other techs here did the diag. I was given work order and told too do the job. The was know codes written down nothing but need pump. So I installed pump try too start and it a crank know start. Then told too look in... Trouble codes: P0128, P0141, P0300, P0446, P0463, P0520 |
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| 2004 Chevrolet Venture LS 3.4L Hesitation, Cuts out, Stall, Misfire VIN: 1GNDX03E54 I'm reopening this help request per I have pissed off a few college perfesers it seems. I apologize for my ignorance in my last help request. Some times it's hard to get everything perfect when your frustrated and the boss is turning the light out as your writ... Trouble codes: P0128, P0141, P0300, P0446, P0446, P0520 |
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| 2011 Chevrolet Cruze LT 1.4L compressor VIN: 1G1PF5S95B This one is driving me crazy. I have a 2011 cruze with no ac engagement. First, I made sure there was plenty of freon in the system. After digging through hvac data, I found the section ac permission data. In this section PIDS currently are: compressor inhibit... |
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| 2011 Chevrolet Traverse LT 3.6L MIL Lamp on VIN: 1GNKRJED9B Have a 2011 Traverse here giving me headaches. I'm leaning toward an injector problem, but got in consistent results. Steps taken: Low side fuel press. 65psi Checked for exhaust leaks per TSB Smoke checked Intake sys. Fuel trims look good Fuel looks OK, but ca... Trouble codes: P2099 (Post Catalyst Fuel Trim System High Limit Bank 2) |
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| 2012 GMC Sierra 2500 HD SLT 6.6L Hesitation, Cuts out VIN: 1GT121C89C I have this 2012 GMC Duramax that is causing us issues. When driving it runs great. This truck does have a mild tune on it with EFI Live and DEF delete. Every once is a while when accelerating it will fall on its face. When this happens the Fuel Rail Pressure ... Trouble codes: P0087 (Low Rail Pressure) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2007 Cadillac Escalade 6.2L Seat Position Sensor? VIN: 1GYFK63857 Boy,oh, Boy what an ordeal, but we found the problem.After looking at a schematic there are 2 wiring diagrams-AN3 and Except AN3- in this diagnosis. So we had to be sure that we were looking at the right schematic. There is a lt green wire that foes to the sea... |
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| 2003 Chevrolet Suburban 2500 LS 6.0L data link , dash , windows VIN: 3GNGC26U53 Late reply because I was waiting for the instrument panel to come back , anyway after just about pulling the wiring harness out in total frustration I disconnected the radio (after market) and now everything works. The customer had this installed over 3 years ... |
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| 2006 Chevrolet Impala LT 3.9L Starting, brake lights, etc VIN: 2G1WC58186 So, a hard reset did nothing. I was able to verify using the wiring diagrams for the power distribution center outputs that its internal relays were fine, but the problem of the BCM not waking up remained. Narrowed it down to the 5v reference output that runs ... |
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| 2012 GMC Savana 2500 4.8L Remanufactured Engine VIN: 1GTW7FCA2C Thanks for everyone's response. Several of you were close, or on the money. The mechanicals of the engine are in time, so that is how it passed Jasper's quality check. However, the camshaft actuator/reluctor wheel and sensor were mounted at least 15 degrees ou... |
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