Heated Oxygen Sensor Replacement - Bank 1 Sensor 2

Heated Oxygen Sensor Replacement - Bank 1 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.
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.
3. Install the HO2S wiring harness to the transmission case.
4. Lower the vehicle.