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Oxygen Sensors: Installation

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CAUTION: Correct tightening of oxygen sensor is critical to prevent crushing glass beads in graphite anti-seize compound. Crushing glass beads will cause sensor to seize in exhaust pipe. This may necessitate repair or replacement of exhaust pipe upon next removal.
  1. Whenever oxygen sensor is removed, coat threads with anti-seize compound (5613695) before reinstallation. New oxygen sensors already have this compound applied to threads.
  2. Install oxygen sensor into exhaust pipe using Oxygen Sensor Tool (J-39194-B). Tighten oxygen sensor to specification. See TORQUE SPECIFICATIONS . Reconnect harness connector to oxygen sensor. Lower vehicle. Test system.
Fig 1: Locating Heated Oxygen Sensors (4.8L & 5.3L Shown; 6.0L & 8.1L Are Similar)
G00147744Courtesy of GENERAL MOTORS CORP.