Removal and Installation

WARNING: This page is about a different car, the 2009 Ford Flex. However, it is still accessible from the selected car via links, so may be relevant.

With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING .
Disconnect the Catalyst Monitor Sensor (CMS) electrical connector.

NOTE: If necessary, lubricate the sensor threads with penetrating and lock lubricant to assist in removal.

Using the Exhaust Gas Oxygen Sensor Socket, remove the CMS .
- Calculate the correct torque wrench setting for the following torque shown in illustration.
  
  Fig 1: Identifying Torque Wrench Adapter Formulas
  Courtesy of FORD MOTOR CO.
- To install, tighten to 48 Nm (35 lb-ft).
  
  Fig 2: Disconnecting Catalyst Monitor Sensor (CMS) Electrical Connector
  Courtesy of FORD MOTOR CO.

NOTE: Apply a light coat of anti-seize lubricant to the threads of the CMS .

To install, reverse the removal procedure.