Ford Repair Questions? Ask a Mechanic for Answers ASAP
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The door ajar switches are mounted on the bottom of the inside door latches in each door. The know cause is one or all of them may be sticking. Take some W-D 40 and soak the latch real well and then open and close the door 10 or 20 times and in some case this will free them up.. Its usually the drivers door but do them all.