Removal and Installation

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 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 & LIFTING .
Disconnect the battery ground cable. For additional information, refer to BATTERY, MOUNTING AND CABLES .
Remove the 7 bolts and the LH splash shield.
- To install, tighten to 10 Nm (89 lb-in).
  
  Fig 1: View Of LH Splash Shield And Retainers
  Courtesy of FORD MOTOR CO.
Disconnect the heated oxygen sensor (HO2S) electrical connector.

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

Using the special tool, remove the HO2S.
- To install, tighten to 48 Nm (35 lb-ft).
  
  Fig 2: Removing HO2S Using Special Tool With Torque Specification
  Courtesy of FORD MOTOR CO.

NOTE: Apply a light coat of anti-seize lubricant to the threads of the HO2S.

To install, reverse the removal procedure.