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Professional Automotive Repair Technical Discussions for September 26, 2017 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2006 Chevrolet Silverado 1500 LT 5.3L Pcm issue VIN: 2GCEK13T56 Replaced pcm. Pcm downloads information but will not upload information. Tried a second pcm, will not upload any info...serial #, etc. Original pcm (before it was taken out of vehicle) had vehicle running fine. First replacement pcm downloaded old info from or... |
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| 2007 GMC W5500HD Forward W5S042 5.2L Cooling Systems VIN: J8DE5B1617 This gmc is building pressure quickly in the cooling system. Presser pushes coolant out of recovery bottle until system gets low enough to over heat. We have block testes 3 times with negative results, egr cooler is ok, fan clutch good, water pump flowing good... |
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| 2007 GMC Sierra 3500 Classic SL 6.6L Starting VIN: 1GDJC34D67 Vehicle towed to the shop, vehicle will not start. Turns over about 2 seconds and quits with the key. You can use a power probe at the starter relay and the engine will turn over. Also the check engine light doesn't come on the instrument panel but has codes t... |
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| 2009 GMC Savana 2500 4.8L Coolant/ Antifreeze VIN: 1GTGG25C69 We have this cargo van that seems to be consuming antifreeze. The customer has been topping up with water as needed for the past 3 months. The van doesn't overheat when the system is topped up. We performed a visual inspection for exterior leaks, and we found ... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2008 Chevrolet Avalanche LS 5.3L Locks, data display, chime VIN: 3GNFK123X8 Thanks again to all! I Believe I have fixed this vehicle, as I couldn't duplicate the problem. However I found a few possible causes.As Ken and others stated, a ground problem ,especially the battery cable itself could be the source. Since I had the heads off ... |
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| 2008 GMC Yukon SLT 5.3L Misfire, MIL Lamp on VIN: 1GKFK13048 SEEM TO BE A VALVE PROBLEM PUSH OR OTHER RETURNED TO DEALER WHERE HE HAD JUST BOUGHT Trouble codes: P0306. |
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