Removal And Installation

WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Before servicing a vehicle equipped with a fire suppression system, depower the system by following the procedure in FIRE SUPPRESSION SYSTEM article. Failure to follow the instructions may result in serious personal injury.

With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING AND LIFTING article.
Disconnect the catalyst monitor sensor electrical connector.

Fig 1: Catalyst Monitor Sensor Electrical Connector

Courtesy of FORD MOTOR CO.

Using the special tool, remove the catalyst monitor.
- To install, tighten to 40 Nm (30 lb-ft).

Fig 2: Catalyst Monitor Sensor Special Tool (303-476)

Courtesy of FORD MOTOR CO.

WARNING: If the vehicle is equipped with a fire suppression system, repower the system. For important safety warnings and procedures, refer to FIRE SUPPRESSION SYSTEM article. Failure to follow these instructions may result in serious personal injury.

To install, reverse the removal procedure. If equipped with fire suppression system, repower the system.
- Apply a light coat of anti-seize lubricant to the threads of the catalyst monitor sensor.