Installation Procedure

IMPORTANT: Use special anti-seize compound on the heated oxygen sensor threads. The compound consists of graphite suspended in fluid and glass beads. The graphite burns away, but the glass beads remain, making the sensor easier to remove. New or service sensors already have the compound applied to the threads. If you remove an oxygen sensor and if for any reason you must reinstall the same oxygen sensor, apply the anti-seize compound to the threads before reinstallation.

Fig 1: Removing/Installing HO2S

Courtesy of GENERAL MOTORS CORP.

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

NOTE: Refer to Component Fastener Tightening Notice in Cautions and Notices.

Install the heated oxygen sensor (2) using a J 39194-B . See Special Tools and Equipment .
Tighten: Tighten the HO2S to 41 N.m (30 lb ft).
Connect the HO2S electrical connector (1).
Lower the vehicle.