Output Shaft Speed Sensor

NOTE: MERCON Automatic Transmission Fluid is being replaced by MERCON V as a service fluid.


Removal
1. Raise and support the vehicle.





2. Remove the output shaft speed (OSS) sensor.
^ Disconnect the OSS sensor electrical connector.
^ Remove the bolt.
^ Inspect the OSS bore.





3. Inspect the O-ring seal for nicks or cuts; install a new as necessary.

Installation

NOTE: Apply a light coat of petroleum jelly to the O-ring before installation.





1. Install the OSS sensor.
^ Connect the OSS sensor electrical connector.
2. Lower vehicle.





3. Check the transmission fluid level, add Motorcraft MERCON or MERCON V automatic transmission fluid or equivalent meeting FORD specification as necessary.





4. Start the engine and move the transaxle range selector lever through all gear positions.