1989 F250 7.3 4x4 E4OD trans in limp mode, tac quit, glowing OD light, does not shift correctly, can a bad TPS affect the tac? Tac has always worked. Went to start in 9 degree, warmed up, went out to drive, trans in limp mode, have to start in second manually to get going then 3rd works. Had to...