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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 894 (Engine Controls And Fuel - 4.3L - Introduction (2 Of 2)) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Engine Harness Clip & Electrical Connectors
    GM1876457Courtesy of GENERAL MOTORS CORP.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the connector position assurance (CPA) retainer.
  3. Disconnect the HO2S pigtail electrical connector (5) from the engine wiring harness electrical connector (4).
  4. Fig 2: View Of HO2S
    GM1876458Courtesy of GENERAL MOTORS CORP.
  5. Remove the HO2S (2).