all of a sudden (after a fuel filter change) my cruise control stops working, the fan only will blow air out of the windshield/defrost holes in the dash (and not anywhere else), the passenger window will only roll up (not down), and the passenger power doorlock will only unlock (not lock). and it will only do that sometimes. there is either a completely logical explaination for all of this, or else i've done something to **** off the ghost of clessie cummins, or the dodge brothers or something.