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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 2 >> 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
    GM1960375Courtesy of GENERAL MOTORS CORP.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. If equipped with 2 wheel drive (2WD) perform the following steps, if equipped with 4 wheel drive (4WD) proceed to step 5.
  3. Remove the connector position assurance (CPA) retainer (2).
  4. Disconnect the HO2S electrical connector (3) from the engine wiring harness electrical connector (5).
    5. Fig 2: View Of CPA Retainer
    GM1960373Courtesy of GENERAL MOTORS CORP.
  5. Remove the connector position assurance (CPA) retainer (2).
  6. Disconnect the HO2S electrical connector (4) from the engine wiring harness electrical connector (3).
    7. Fig 3: View Of Exhaust Sensors
    GM1960379Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Excessive Force and Oxygen Sensor Notice .
  7. Remove the HO2S (4).
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