The overdrive fuse keeps blowing. Overdrive light would stay on and not turn off not blinking
The problem is that either the wiring harness going to the overdrive control motor has chafed and is shorting out, or the overdrive control motor is bad. Check out the wiring harness VERY carefully, if it's OK replace the control motor.
SOURCE: overdrive transmission
this is the old style transmission code you have a problem with a solenoid inside the transmission go to a transmission shop to read and replace the solenoid only not a rebuild usually
SOURCE: hard shift and blinking overdrive
The blinking overdrive button is telling u that a serious fault has occurred in the electronic controls or a mechanical fault such as excess slippage is occurring.
SOURCE: 1998 ford expedition blinking overdrive light
This blinking light indicates a problem. You will have to have it scanned for trouble codes to find out
what it is.
SOURCE: f150 transmission neutralizes when shifts to overdrive
I have that exact same truck and transmission and My Transmission did the exact same thing about a year ago and there was some kind of snap ring inside the transmission that broke. I originally thought it had to be an electirical problem because the truck shifted fine until OD or if i turned OD off. The 4r70w is a light transmission and i would suggest you have a shift kit put in and they make a heavier kit to beef it up.. Sorry its probably not the new you were looking for.
SOURCE: Overdrive switch blowing fuse on 2002 F150 Ford
Remove the shroud around the steering column and shifter and look closly at the wires coming out of the shifter at the pivot of the shifter, if its not to bad you can tapeit and reposition it and be good to go.
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