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Upstream O2 Sensor

  1. Apply anti-sieze compound to the threaded portion of the O2 sensor.
  2. Install the O2 sensor (1). Tighten to 50 N.m (37 ft. lbs.).
    Fig 1: Installing Upstream O2 Sensor
    G01860798Courtesy of DAIMLERCHRYSLER CORP.
  3. Connect the O2 sensor harness connector.
  4. Install the air cleaner housing. See 3.2L V6 article.
  5. Connect the negative battery cable.