Heated Oxygen Sensor Replacement - Bank 2 Sensor 2

Heated Oxygen Sensor Replacement - Bank 2 Sensor 2

Removal Procedure

1. Turn the ignition OFF.
2. Raise and support the vehicle. Refer to Vehicle Lifting.




3. Disconnect the heated oxygen sensor (HO2S) electrical connector (bank 1 shown, bank 2 similar).
4. Remove the HO2S wiring harness from the transmission case.






Notice: Refer to Oxygen Sensor Notice.

Important: Removal of the oxygen sensor is easier when the engine temperature is above 48°C (120°F).

5. Remove the HO2S.

Installation Procedure






Notice: Refer to Component Fastener Tightening Notice.

Important: New oxygen sensors should have a special anti-seize compound already applied to the sensor threads. If you are installing the original sensor, apply anti-seize compound GM P/N 5613695 or equivalent to the sensor threads.

1. Install the HO2S.

Tighten the HO2S to 40 N.m (30 lb ft).




2. Connect the HO2S electrical connector (bank 1 shown, bank 2 similar).
3. Install the HO2S wiring harness to the transmission case.
4. Lower the vehicle.