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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1309 (Engine Controls And Fuel - 4.3L - 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 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to Heated Oxygen and Oxygen Sensor Caution .
    Fig 1: View Of Engine Wiring Harness Electrical Connector & HO2S Electrical Connector
    GM1876456Courtesy of GENERAL MOTORS CORP.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the connector position assurance (CPA) retainer.
  3. Disconnect the engine wiring harness electrical connector (1) from the HO2S pigtail electrical connector.
  4. Remove the HO2S pigtail electrical connector clip (2) from the frame.
    5. Fig 2: View Of HO2S
    GM1876458Courtesy of GENERAL MOTORS CORP.
  5. Remove the HO2S (4).
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