My 1994 F150 started out losing power throughout the gears and would not downshift when i hit the gas. gradually it got to the point to where it would not barely drive down the road, like it was stuck in overdrive or something. Latest condition is that the overdrive off light will start blinking constantly when im driving then will send the truck to neutral. I then hit the overdrive off button after turning the truck off to turn it off and the truck goes down the road, just no quick acceleration and no overdrive. Now its to the point where as soon as i start it the overdrive off light is blinking and the truck will barely move. When it does decide to move it hops into gear frequently killing the truck when this happens. Any ideas or has anyone experienced this type of issue?
Sounds like bad wiring at the transmission.
Take the solenoid shift pack plug out that is on the passenger side of the transmission hopefully behind a a heat shield. Take the back of the plug loose and see if you have bad wiring at the plug.
If the wire are OK there then unplug the TR sensor on the other side and check is wires.