Installation Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Removing/Installing HO2S 1

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: A special anti-seize compound is used on the heated oxygen sensor threads. The compound consists of graphite suspended in fluid and glass beads. The graphite will burn away, but the glass beads will remain, making the sensor easier to remove. New or service sensors will already have the compound applied to the threads. If a sensor is removed from an engine and if for any reason is to be reinstalled, the threads must have anti-seize compound applied before reinstallation.

Coat the threads of heated oxygen sensor/catalyst monitor with anti-seize compound GM P/N 5613695 or equivalent if necessary.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.

Install the heated oxygen sensor.
Tighten: Tighten the HO2S 1 (pre-catalytic converter) to 41 N.m (30 lb ft).
Connect the sensor electrical connector.
Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.