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Professional Automotive Repair Technical Discussions for September 4, 2019 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2007 Buick LaCrosse CXL 3.8L Poor Idle Quality, Reduced Power VIN: 2G4WD582X7 Greetings all. The vehicle came in with complaint of rattles on startup, won't go over 20mph, engine decreased power message displayed. And, boy howdy it does. Code stored, P1516. If you clear codes it will start fine and drive fine. Cycle the key, maybe i... Trouble codes: P1516 (Electronic Throttle Module vs Throttle Position Performance) |
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| 1987 Chevrolet LLV 2.5L Poor Idle Quality, Poor Idle Quality, Poor Idle Quality, Poor Idle Quality VIN: 1GBBS10E6H This postal vehicle has been a problem child for years and we get it running ok for extended periods of time but it seems to always come back with similar symptoms that defy our diagnostic procedures. Currently it is running very poorly and claims to be le... |
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| 2003 Chevrolet Suburban 1500 LT 5.3L Cruise Control VIN: 1GNFK16Z23 Cannot find where this 5v is coming from. The stop lamp circuit to the TAC module should be 0v brakes off, and 12v brakes on. With the lt blue wire unpinned from the tac mod there is 0v brakes off and 12v brakes on. Again with the wire unpinned from c1 of ... |
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| 2009 Chevrolet Silverado 1500 WT 4.3L Electronic VIN: 1GCEC14X99 At idle, sometime the speedometer move to 10 mph and rear speed sensor data indicate 90 to 105 mph. Code p0602,p0603,p0711,p0716,p0717,p071a,p0722,p0723.p0741. Transmission shift ok until abs warning light stay on. It does not shift any gears. If i turn ke... |
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| 2013 Chevrolet Silverado 2500 HD LT 6.0L Reverse Lights VIN: 1GC1KXCG0D Trying to repair reverse light for state safety inspection. They turn on and off through the BCM with a scanner. Scanner shows proper gear position in TCM. Instrument panel shows proper gear position. No codes on any of those systems, no communication code... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2009 Chevrolet Express 2500 4.8L stalling VIN: 1GCGG25C49 I am convinced this is an internal transmission problem. Transmission shop I am looking at this for is not. They sent it to the dealer and they have had it for 2 weeks now with no resolution. I am running out of time on this post so I must close it out. As soo... |
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| 2013 Chevrolet Silverado 1500 LTZ 6.2L MIL Lamp on VIN: 3GCPKTE2XD I appreciate everyones feedback especially the Cylinder delete info. I am fairly certain cylinder 5 is toast at this point with low compression. Cylinder leak down test fail. Checked the valve springs and they look ok so im assuming a valve or piston issue. I... Trouble codes: P0011 (Cmp not passed), P0053 (Ho2s), P0054 (Ho2s), P0059 (Ho2s), P0060 (P0300- Cylinder misfires), P0300 (Cylinder misfires). |
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