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Home >> Chevrolet >> 2012 >> Caprice 3.6 3 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls/Fuel - 3.6L - Repair Instructions >> Repair Instructions >> Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 >> Removal Procedure

Removal Procedure

  1. Ignition OFF.
    2. WARNING:

    Refer to Battery Disconnect Warning .

  2. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (Primary) , Battery Negative Cable Disconnection and Connection (Auxiliary) .
    3. WARNING:

    To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

    WARNING:

    Refer to Safety Glasses Warning .

  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
    4. Fig 1: Identifying Oxygen Sensor & Wiring Harness Connector
    GM1949877Courtesy of GENERAL MOTORS COMPANY
  4. Disconnect the heated oxygen sensor (HO2S) electrical connector (1) from the engine wiring harness connector.
    5. Fig 2: View Of HO2S
    GM1949879Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Refer to Exhaust Service Warning

    CAUTION:

    Refer to Heated Oxygen and Oxygen Sensor Caution .

  5. Remove the HO2S (1) from the exhaust.
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