Question about 1994 Ford Aerostar Extended
On my 96 the PSOM module went bad. That is located on the back of the instrument cluster. Mine is analog not digital. What was happening was that the PSOM (Programable Speedometer Odometer Module) would mess up and the speedometer would jump all over the place. The tranmission is electronic and the computer would adjust and shift depending on the speed reported by the speedometer. The van would **** and shake. At slower speeds it was much better. I changed the speed sensor first without success. Changed the instument cluster and all was well.
Posted on Feb 03, 2009
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Posted on Jan 02, 2017
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