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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 229 (Engine Control System & Fuel - Hybrid (Hp2) 6.0L (LFA) - Introduction (2 Of 2)) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice .
    Fig 1: Locating HO2S & Components
    GM1960351Courtesy of GENERAL MOTORS CORP.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Unbolt the front propeller shaft from the front differential, if equipped with four wheel drive (4WD). Refer to Front Propeller Shaft Replacement .
  3. Remove the connector position assurance (CPA) retainer (4).
  4. Disconnect the engine wiring harness electrical connector (7) from the HO2S.
  5. Remove the HO2S electrical connector clip (6) from the fuel line clip.
    6. Fig 2: View Of Exhaust Sensors
    GM1960379Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Excessive Force and Oxygen Sensor Notice .
  6. Remove the HO2S (1).
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