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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 357 (Engine Controls And Fuel - Hybrid (LZ1) - Repair Instructions) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:

Refer to Heated Oxygen and Oxygen Sensor Caution .

    Fig 1: HO2S Electrical Connector, CPA Retainer, Engine Wiring Harness Electrical Connector And Clip
    GM1960377Courtesy of GENERAL MOTORS CORP.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the connector position assurance (CPA) retainer (3).
  3. Disconnect the engine wiring harness electrical connector (2) from the HO2S electrical connector (1).
  4. Remove the HO2S clip from the engine wiring harness clip (4).
    5. Fig 2: Exhaust And HO2S Sensors
    GM1960379Courtesy of GENERAL MOTORS CORP.
    CAUTION:

    Refer to Excessive Force and Oxygen Sensor Caution .

  5. Remove the HO2S (2).
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