Installation Procedure

WARNING: This page is about a different variant/trim than selected.

IMPORTANT: A special anti-seize compound is used on the 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 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 before installation.

Coat the threads of the oxygen sensor with anti-seize compound GM P/N 12377953, or equivalent, if necessary.

Fig 1: Oxygen Sensor & Harness Connector
Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .
Install the oxygen sensor.
Tighten: Tighten the oxygen sensor to 30 N.m (22 lb ft).
Connect the oxygen sensor harness connector.

Fig 2: Removing & Installing Exhaust Manifold Heat Shield

Courtesy of GENERAL MOTORS CORP.

Install the exhaust manifold heat shield. Refer to Exhaust Manifold Replacement (RPO LE5) or Exhaust Manifold Replacement (RPO LSJ) or Exhaust Manifold Replacement (RPO L61) .