Installation Procedure

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: A special anti-seize compound is used on the heated oxygen sensor threads. The compound consists of a liquid graphite and glass beads. The graphite will burn away, but the glass beads will remain, making the sensor easier to remove. New or service replacement sensors will have the compound applied to the threads. If a sensor is removed and is to be reinstalled, the threads must have an anti-seize compound applied prior to installation.

Fig 1: Identifying HO2S

Courtesy of GENERAL MOTORS CORP.

If necessary, coat the threads of the HO2S with anti-seize compound GM P/N 12377953 or Saturn P/N 21485279 or equivalent.

CAUTION: Refer to Fastener Caution .

Using the J 39194-C , install the HO2S and tighten to 42 N.m (31 lb ft).

Fig 2: Identifying Wheel Drive Shaft Heat Shield

Courtesy of GENERAL MOTORS CORP.

NOTE: Use care when securing the HO2S electrical lead into the trough on the exhaust heat shield, as not to pinch the lead.

Bend the heat shield trough (2) up until the HO2S lead (1) is secured.
Lower the vehicle.

Fig 3: Identifying Engine Harness Electrical Connectors

Courtesy of GENERAL MOTORS CORP.

If equipped with RPO M86, perform the following steps, connect the HO2S connector lead to the engine harness electrical connector (5).
Install the CPA retainer (4).

Fig 4: Identifying Engine Harness Electrical Connectors - Top Of Engine

Courtesy of GENERAL MOTORS CORP.

If equipped with RPO MN5, perform the following steps, connect the HO2S electrical connector lead to the engine harness electrical connector (4).
Install the CPA retainer.