Malibu L4-2.4L (2010)
Catalytic Converter: Service and Repair
Catalytic Converter Replacement - Left Side
Catalytic Converter Replacement - Left Side
Special Tools
J 39194-B Heated Oxygen Sensor Wrench
Removal Procedure
Caution: The oxygen sensor uses a permanently attached pigtail and connector. Do not remove the pigtail from the oxygen sensor. Damage to or
removal of the pigtail connector could affect proper operation of the oxygen sensor.
Caution: The use of excessive force may damage the threads in the exhaust manifold/pipe.
Note: The in-line connector and louvered end must be kept clear of grease, dirt or other contaminants. Avoid using cleaning solvents of any type. DO
NOT drop or roughly handle the HO2S.
Note: The HO2S may be difficult to remove when the engine temperature is less than 48°C (120°F)
1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement (See: Engine/Tune-up and Engine Performance Checks/Air
Cleaner Housing/Service and Repair).
2. Remove the connector position assurance (CPA) retainer (5).
3. Disconnect the engine wiring harness electrical connector (4) from the heated oxygen sensor (HO2S) electrical connector (3).
4. Remove the HO2S electrical connector rosebud clip from the oil level indicator tube tab.
