Might be stuck from moisture and corrosion. Not familiar with the soft
underbelly of the Aerostar but you might be able to get your head under
the radiator/front bumper area and get a good shot at lubing it with
some liquid wrench or wd-40. Try to work the mechanism free with your
hand or tap it lightly with a small hammer.
Had this happen on my old Escort. Once you get it free put some white
grease spray on the latch mechanism once in a while. Do your door
I have a 98 Ranger, and kept having trouble with the "Door Ajar" light on
the dash staying on while running, and the overhead cab light staying on
even when the ignition was shut off. A little WD-40 on the door latches
solved the problem. A Google search turned up several others having the
same problem, that's how I found the WD-40 solution.
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