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Home >> Hummer >> 2005 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Introduction >> Repair Instructions >> Heated Oxygen Sensor (HO2S) Replacement Bank 1 Sensor 1 >> Removal Procedure
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Removal Procedure

    CAUTION: Refer to Vehicle Lifting Caution in Cautions and Notices.
  1. Raise the vehicle.
    2. Fig 1: Identifying O2 Sensor & Related Components
    GM715477Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice in Cautions and Notices.
  2. Disconnect the connector (1) for the HO2S.
    3. NOTE: Refer to Excessive Force and Oxygen Sensor Notice in Cautions and Notices.
  3. Remove the HO2S (2) using a J 39194-B  . See Special Tools .
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