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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 466 (Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - Repair Instructions) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (2500 Series) >> Removal Procedure

Removal Procedure

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CAUTION:

Refer to Heated Oxygen and Oxygen Sensor Caution .

    Fig 1: View Of Engine Wiring Harness Electrical Connectors, (CPA) Retainers & Engine Harness Clip
    GM1704011Courtesy of GENERAL MOTORS COMPANY
  1. Remove the right wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side .
  2. Remove the connector position assurance (CPA) retainer (5).
  3. Disconnect the HO2S electrical connector from the engine wiring harness electrical connector (1).
    4. Fig 2: View Of Catalytic Converter Assembly HO2S's
    GM1704012Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Excessive Force and Oxygen Sensor Caution .

  4. Remove the HO2S (2).
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