Envoy 2WD L6-4.2L (2008)
Oxygen Sensor: Service and Repair
Heated Oxygen Sensor 1 Replacement
Heated Oxygen Sensor 1 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. Remove the connector position assurance (CPA) retainer from the heated oxygen sensor (HO2S) connection.
2. Disconnect the engine wiring harness electrical connector (2) from the HO2S electrical connector (1).
3. Remove the HO2S electrical connector (1) clip from the transmission fluid fill tube bracket.
