Removal Procedure

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: 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.

NOTE: 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 oxygen sensor.

IMPORTANT: The oxygen sensor may be difficult to remove when the engine temperature is less than 48°C (120°F).

Fig 1: Removing & Installing Exhaust Manifold Heat Shield

Courtesy of GENERAL MOTORS CORP.

Remove the exhaust manifold heat shield. Refer to Exhaust Manifold Replacement (RPO L61) .

Fig 2: Oxygen Sensor & Harness Connector

Courtesy of GENERAL MOTORS CORP.

Disconnect the oxygen sensor harness connector.
Remove the oxygen sensor using J 39194-C .