Oxygen Sensor - Removal

REMOVAL

CAUTION: Never apply any type of grease to the oxygen sensor electrical connector, or attempt any repair of the sensor wiring harness.

WARNING: The exhaust manifold, exhaust pipes and catalytic converter become very hot during engine operation. Allow engine to cool before removing oxygen sensor.

The engine is equipped with four heated oxygen sensors:

- The right upstream oxygen sensor is referred to as the 1/1 sensor.
- The right downstream oxygen sensor is referred to as the 1/2 sensor.
- The left upstream oxygen sensor is referred to as the 2/1 sensor.
- The left downstream oxygen sensor is referred to as the 2/2 sensor.

Right Oxygen Sensor(s)





1. Disconnect and isolate the negative battery cable.
2. Raise and support the vehicle Maintenance.
3. Remove the right front wheelhouse inner splash shield Splash Shield - Removal.

CAUTION: When disconnecting the oxygen sensor electrical connector, do not pull directly on the wire going into the sensor. The sensor wiring can be damaged resulting in sensor failure.

4. Disconnect the electrical connector from the right upstream 1/1 oxygen sensor (1) or the right downstream 1/2 oxygen sensor (2).
5. Remove the oxygen sensor.
6. Clean the threads in the exhaust pipe using an appropriate tap.

Left Oxygen Sensor(s)





1. Disconnect and isolate the negative battery cable.
2. Raise and support the vehicle Maintenance.
3. Remove the left front wheelhouse inner splash shield Splash Shield - Removal.

CAUTION: When disconnecting the oxygen sensor electrical connector, do not pull directly on the wire going into the sensor. The sensor wiring can be damaged resulting in sensor failure.

4. Disconnect the electrical connector from the left upstream 2/1 oxygen sensor (1) or the left downstream 2/2 oxygen sensor (2).
5. Remove the oxygen sensor.
6. Clean the threads in the exhaust pipe using an appropriate tap.