Question about 1999 Ford F250 Regular Cab
I turn on the switch but hubs do not lock 'Is this vacum related?
It sounds like the electric switch motor, or the relay that powers the motor. Remember 4wd high can be switched at any time below a certain speed(55mph?) but for 4wd Low you must be stopped with the transmission in neutral before it will engage. You might try tapping on either the relay or the motor while someone else works the switch...
Posted on Jan 28, 2009
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