Heated Oxygen Sensor - Upstream

REMOVAL
1. Disconnect the battery ground cable.







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.