Join Date: Nov 2002
Location: SouthEastern PA
I think you have a problem with your transmission, not your motor. It sounds like it is probably electronic in nature, which would be the best thing. If it is mechanical, you will probably need a complete rebuild. I would suggest that it could be the MLPS (manual lever position sensor). I don't know how to check it, but I know that they do go bad. Maybe you can get one from a junkyard and try swapping it. It could also possibly be a problem with the computer, since the 94-97 transmissions are computer-controlled. There is also the possibility of a bad connection or shorted wiring. Maybe check the connectors and wires to the transmission and clean up and corrosion that you find, and retape any chafed wires.
Owner, 1990 Thunderbird SC, white w/ gray cloth