Vehicle Speed Sensor (VSS)
WARNING: This page is about a different car, the 1995 Ford Pickup, 1995 Ford Econoline, 1995 Ford Club Wagon, and 1995 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect VSS electrical connector. Using DVOM, measure resistance across sensor terminals. Resistance should be 190-250 ohms. Replace sensor if not within specification. Faults in VSS sensor or circuit should set a diagnostic trouble code. See QUICK TEST in TESTS W/CODES - EEC-IV (4.9L) article. If no diagnostic trouble code has been set, proceed to CIRCUIT TEST DP in the appropriate TESTS W/CODES - EEC-IV (4.9L) article for additional sensor testing and specifications.