Notice: Handle the oxygen sensors carefully in order to prevent damage to the component. Keep the electrical connector and the exhaust inlet end free of contaminants. Do not use cleaning solvents on the sensor. Do not drop or mishandle the sensor.

Important: Remove oxygen sensors with the engine temperature above 48°C (120°F). Otherwise the oxygen sensors may be difficult to remove.

Important: A special anti-seize compound is used on the oxygen sensor threads. New service sensors should already have the compound applied to the threads. Coat the threads of a reused sensor with anti-seize compound P/N 5613695 or equivalent.

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the air deflector. Refer to Front Air Deflector Replacement in Body Front End.
3. Disconnect the front oxygen sensor electrical connector.



4. Remove the front oxygen sensor from the front exhaust manifold.

Notice: Refer to Fastener Notice in the Preface section.




1. Install the front oxygen sensor in the front exhaust manifold.

Tighten
Tighten the front heated oxygen sensor (HO2S) to 41 N·m (30 lb ft).

2. Connect the front oxygen sensor electrical connector.
3. Install the air deflector. Refer to Front Air Deflector Replacement in Body Front End.
4. Lower the vehicle.