Removal And Installation

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. 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 AND LIFTING article.
Remove the 7 bolts (5 shown) and the LH splash shield.
- To install, tighten to 10 Nm (89 lb-in).

Fig 1: Left Splash Shield

Courtesy of FORD MOTOR CO.

Disconnect the catalyst monitor sensor electrical connector and detach the wiring retainer(s).

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

Using the special tool, remove the catalyst monitor sensor.
- To install, tighten to 48 Nm (35 lb-ft).

Fig 2: Catalyst Monitor Sensor Special Tool

Courtesy of FORD MOTOR CO.

NOTE: Apply a light coat of anti-seize lubricant to the threads of the catalyst monitor sensor.

To install, reverse the removal procedure.