Envoy 2WD V8-5.3L (2007)
Oxygen Sensor: Service and Repair
Heated Oxygen Sensor Replacement - Bank 2 Sensor 1
Heated Oxygen Sensor Replacement - Bank 2 Sensor 1
Removal Procedure
Notice: Refer to Heated Oxygen and Oxygen Sensor Notice.
Notice: Refer to Excessive Force and Oxygen Sensor Notice.
1. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
2. Unscrew the heated oxygen sensor (HO2S) sensor from the catalytic converter.
3. Remove the connector position assurance (CPA) retainer.
4. Disconnect the HO2S electrical connector (2).
Installation Procedure
