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Heated Oxygen Sensor: Installation

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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 sensors will have the compound applied to the threads.
  2. 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 HO2S with Anti-Seize Compound (5613695), if necessary.
  3. Using Oxygen Sensor Wrench (J-39194-B), install the appropriate HO2S and tighten to specification. See TORQUE SPECIFICATIONS  . On HO2S 2, connect harness connector. On all applications, lower vehicle. On HO2S 1, connect harness connector.
Fig 1: Locating HO2S 1
G00114731Courtesy of GENERAL MOTORS CORP.
Fig 2: Locating HO2S 2
G00114732Courtesy of GENERAL MOTORS CORP.
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