Ford ranger transmission problems.
Use, borrow, or come by a ELM scan tool & running FORScan diagnostic freeware (that's tweaked for Fords), on the viewing device of your choice as discussed here https://www.ford-trucks.com/forums/1...-scantool.html, as this inexpensive but powerful combo can query all of the vehicle computer controllers (including the tranny controller), for trouble code clues that can help focus a trouble shoot. Post up All trouble code Numbers.
This combo can also monitor & display live PID sensor feeds to the computer/controllers, so we can watch what's going on back & forth between them.
You mentioned you've been dealing with this problem for some time, so did it come about suddenly after some event, or slowly over time?
How many miles on the tranny & has the tranny filter & fluid been changed with a licensed Mercon V fluid & if so, was it just a pan drop, filter change & pan refill, or was a Full tranny fluid pump-out performed?
Some initial thoughts for consideration, let us know what you find.








