My 03 F250 7.3 will not shift into 4x4.
It showed a code of P720 ( speed output sensor malfunction) I replaced that,
still nothing. The only power going to the selector switch is to the light. Is
there a 4x4 control module that powers the switch? Or does it all go through
the PCM? Any help is appreciated,parts are to expensive to just start
Search Ford F-250 Super Duty Questions
Ford F-250 Super Duty Experts