Oxygen Sensor - Removal

4.7L/5.7L

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 pipes and catalytic converter become very hot during engine operation. Allow the engine to cool before removing the oxygen sensor.





NOTE: 5.7L system shown. 4.7L similar.

1. Raise and support vehicle.

2. Disconnect wire connector from O2 sensor.

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.

3. Remove O2 sensor with an oxygen sensor removal and installation tool.

4. Clean threads in exhaust pipe using appropriate tap.