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REMOVAL
1. Disconnect the battery ground cable. For additional information, refer to Battery.







2. Disconnect the Heated Oxygen Sensor (HO2S) electrical connector.







3. Remove the HO2S.


INSTALLATION
1. To install, reverse the removal procedure.

NOTE: Apply a light coat of High Temperature Nickel Anti-Seize Lubricant F6AZ-9L494-AA or equivalent meeting Ford specification ESE-M12A4-A to the threads.