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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 199 (Engine Control System & Fuel - 4.8L, 5.3L, 6.0L, Or 6.2L - Introduction (2 Of 2)) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (1500 Series) >> Removal Procedure

Removal Procedure

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NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice .
    Fig 1: View Of Engine Wiring Harness Electrical Connectors, (CPA) Retainers & Engine Harness Clips
    GM1704006Courtesy of GENERAL MOTORS CORP.
  1. Remove the right wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side .
  2. Remove the connector position assurance (CPA) retainer (2).
  3. Disconnect the HO2S electrical connector (7) from the engine wiring harness electrical connector (1).
  4. Remove the HO2S clip (8) from the engine wiring harness.
    5. Fig 2: View Of Catalytic Converter Assembly HO2S's
    GM1704008Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Excessive Force and Oxygen Sensor Notice .
  5. Remove the HO2S (3).
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