Envoy 2WD L6-4.2L (2008)
Oxygen Sensor: Service and Repair
Heated Oxygen Sensor 2 Replacement
Heated Oxygen Sensor 2 Replacement
Tools Required
J 39194-B Heated Oxygen Sensor Wrench
Removal Procedure
Notice: Refer to Heated Oxygen Sensor Resistance Learn Reset Notice.
Notice: Refer to Heated Oxygen and Oxygen Sensor Notice.
1. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
2. Disconnect the heated oxygen sensor (HO2S) electrical connector (2) from the engine wiring harness electrical connector (1).
