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  1. Introductions
    2011 GMC Sierra 2500HD Denali 110K So I think my TCM decided to take a dump. Getting P0700 and P0708. Got it to limp home and shut it down for dinner. 1/2 hour later it goes into a high idle at start up (800 rpm, regen not possible) won’t go into any gear, shift indicator message, getting a...
  2. 2001 - 2007 (GMT800) Non Powertrain
    Hi everybody, I’m hoping someone may be able to help me with my problem. it all started in July, my 03 Chevy2500 hd Allison started feeling like it was slipping between 1-2 and 2-3 only when starting out from cold and it would get better the more you drove it. The instrument cluster also...
1-2 of 2 Results