Malibu Classic L4-2.2L (2008)
Exhaust Manifold: Service and Repair
Exhaust Manifold Replacement (L61)
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 connector position assurance (CPA) retainer (1).
2. Disconnect the engine wiring harness electrical connector (4) from the heated oxygen sensor (HO2S) electrical connector (3).
3. Remove the HO2S electrical connector rosebud clip (2) from the thermostat housing.
