Malibu V6-3.9L (2007)
Catalytic Converter: Service and Repair
Catalytic Converter Replacement - Right Side (LZ9)
Catalytic Converter Replacement - Right Side (LZ9)
Tools Required
J 39194-B Heated Oxygen Sensor Wrench
Removal Procedure
Notice: 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.
Notice: The use of excessive force may damage the threads in the exhaust manifold/pipe.
Important: 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.
Important: The HO2S may be difficult to remove when the engine temperature is less than 48°C (120°F).
1. Remove the muffler assembly. Refer to Muffler Replacement.
2. Remove the rear stabilizer shaft. Refer to Stabilizer Shaft Replacement (Base Sedan), (Extended Sedan).
3. Remove the connector position assurance (CPA) retainer (1).
4. Disconnect the lower right heated oxygen sensor (HO2S) electrical connector (2).
