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Home >> Chevrolet >> 2004 >> Tracker 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 2.0L (Introduction) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Position 2 (w/o PUP-TWC) >> Installation Procedure

Installation Procedure

    NOTE: Refer to Component Fastener Tightening Notice in Cautions and Notices.
    IMPORTANT: The new HO2S 2 comes with an anti-seize coating on the sensor threads. Take precautions in order to prevent the removal of any of the anti-seize coating prior to installation. If the sensor was removed and is being reinstalled, an anti-seize compound must be applied to the threads before installation.
  1. Install HO2S 2 (2) into the exhaust pipe.

    Tighten:  Tighten HO2S sensor to 45 N.m (32 lb ft).

  2. Connect the HO2S 2 (2) electrical connector.
  3. Insert the HO2S 2 electrical connector (1) up through the opening in the floor pan.
  4. Lower the vehicle.
    5. Fig 1: View Of HO2S 2 & Electrical Connector
    GM451371Courtesy of GENERAL MOTORS CORP.
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