i have a 94 ram 1500 4x4 the speedo dosent work the check engine light comes on when it suppose to shift into overdrive but it dosent, and pretty sure the torque converter is not locking.
i replaced the rear diff speed sensor tried two t case speed sensors idk.. ground wires?? is there another sensor im overlooking? i think its throwing code 37 but im not fully sure i really dont want to take it to a shop in fear the bill will be more than the truck is worth thanks.