Transmission won't shift out of drive
My 2004 Ram 2500 4x4 Automatic Tranny with 140k won't shift out of drive. Reverse works fine,you can manually shift to park reverse or drive, but it will only move forward in third gear(drive).So it is taking off in third gear instead of going through 1st 2nd third and overdrive. I tried to manually shift it to 1st and 2nd with no luck. Transmission shop ran a diagnostic on it and said that the computer is telling the tranny to shift,but it is not taking the command.Any help out there would be great!