Installation Procedure

Fig 1: Identifying Heated Oxygen Sensor (HO2S) Electrical Connector

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice in Cautions and Notices.

NOTE: A special anti-seize compound is used on the oxygen sensor threads. New service sensors should already have the compound applied to the threads. Coat the threads of a reused sensor with anti-seize compound P/N 5613695 or equivalent.

Install the HO2S.
Tighten: Tighten the HO2S 2 to 42 N.m (31 lb ft).
Connect the HO2S electrical connector.
Lower the vehicle.