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Ask A. Penland Your Own Question
A. Penland
A. Penland, Ford Senior Master Technician, ASE
Category: Ford
Satisfied Customers: 6346
Experience:  ASE Master Certified, ASE Advanced Gasoline Engine Performance
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The speedometer quit working and it shifted but really

Customer Question

The speedometer quit working and it shifted but really rough, thought it might be the speed sensor, Is that a possibility
JA: Does the sensor have a wire-wrapped magnet? If so, have you checked it with an ohmmeter?
Customer: I don't really know about that, I had just google when the speedometer quits and it shifts rough, Afraid it would be the transmission but one of the post said to check the speed sensor first. Not even sure where it is on the Ford 250
JA: What year is your E250?
Customer: 1999
JA: Are you fixing your E250 yourself? What have you tried so far?
Customer: We are going to try to fix it ourselves so just started researching the possibilities
JA: Anything else you want the mechanic to know before I connect you?
Customer: Just where to start
Submitted: 5 months ago.
Category: Ford
Expert:  A. Penland replied 5 months ago.

The VSS (Vehicle Speed Sensor) is located on the drivers side of the transmission on the tail shaft where the driveshaft attaches. It controls the vehicle speed signal to the PCM (Engine Computer) and the instrument cluster.