Search results

  1. I

    Updated Transmission Relearn Procedure

    I have an f550 that was modified and tuned (ecm, and tcm) now the truck will start very sluggish with no throttle and won’t start to run right until about 5-10 mins after driving. Does the trans have to relearn? Is there something I can do to get this thing to drive right as soon as I get in it...

Latest posts

Members online

Top