I have a 1989 Dodge D100. It quit shifting into overdrive today. It shifts smoothly into 1,2and 3 but will not go into o.d.. I am thinking it is the od unit but I have no idea where it is. Any help would be appreciated. It gets poor enough mileage without losing the overdrive.
06-20-2010, 08:32 PM
Could be lots of things bad solenoid, blown fuse, bad wires, bad TPS. Does the OD switch work?