× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for September 26, 2017
International Automotive Technicians' Network (iATN) - Members Only
Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

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...
View
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...
View
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...
View
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 ...
View

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 ...
9
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.
21
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next