Installation Procedure

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Heated Oxygen Sensor (HO2S)

Courtesy of GENERAL MOTORS CORP.

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.

NOTE: Refer to Fastener Notice .

Install the HO2S.
Tighten: Tighten the HO2S 1 to 42 N.m (31 lb ft).
Connect the oxygen sensor electrical connector.