× 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 April 10, 2014
International Automotive Technicians' Network (iATN) - Members Only
(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
2005 Chevrolet Silverado 2500 HD 6.0L injectors VIN: 1GCHK24U25
hello all thanx in advance for your help.this vehicle came in as a hard start when cold replace fuel pump due to psi readings below 40 psi. fuel psi stays stedy @ 55 psi now. still when cold has hard starting,runs very low rpms and logs missfires on 1,4,5,7 bu...
2007 Chevrolet Silverado 1500 LTZ 5.3L vavle body VIN: 2GCEC19J77
I am hoping for some insight on this 4l60e. I have not yet been able to duplicate the problem but the customer claims that while she is sitting at a traffic light with the trans in drive she will suddenly feel a good stiff "bump" almost as if someone had run i...
2003 GMC Safari 4.3L Misfire, MIL Lamp on VIN: 1GKDM19X23
HI.I have a miss fire # 3 cylinder @ idle in closed loop warm.Compression test leak down test all check good.Ignition @ fuel tested good.The miss fire will go away when I hold pressure on # 3 cylinder exhaust rocker arm running @ idle.I already replaced all th... Trouble codes: P0303 (Miss fire)
2007 GMC Acadia SLT 3.6L trans VIN: 1GKEV23707
Hello GM tech's. I've replaced this automatic trans and I'm curious if I need to reprogram the TCM to the PCM in order to get proper trans function. I know I need to perform an adaptive learn procedure but I'm not too sure if a reflash is necessary to complete...

Fixes & Summaries for GM
Fix/Summary Answers
2007 Pontiac Grand Prix GT 3.8L Shifting VIN: 2G2WR55447
Line pressure is good, no reverse, checked input speed on scanner = 0. Broken input shaft. Probably aggravated by a bad pressure control solenoid.
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next