Removal and Installation

Rear sensor 

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING .

   Both sensors 

2. Disconnect the Heated Oxygen Sensor (HO2S) electrical connector.
3. Using the Exhaust Gas Oxygen Sensor Socket, remove the HO2S  .
   • Calculate the correct torque wrench setting for the following torque. Refer to Torque Wrench Adapter Formulas in illustration.
     Fig 1: Identifying Torque Wrench Adapter Formulas

     Courtesy of FORD MOTOR CO.
   • To install, tighten to 48 Nm (35 lb-ft).
   NOTE: If necessary, lubricate the sensor threads with penetrating and lock lubricant to assist in removal.
   Fig 2: Identifying Exhaust Gas Oxygen Sensor Socket

   Courtesy of FORD MOTOR CO.
4. To install, reverse the removal procedure.
   NOTE: Apply a light coat of anti-seize lubricant to the threads of the HO2S  .