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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 2 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:

    Refer to Safety Glasses Warning .

    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.

  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
    4. Fig 1: Identifying HO2S Electrical Connector
    GM1949882Courtesy of GENERAL MOTORS COMPANY
  4. Detach the heated oxygen sensor (HO2S) wiring harness from the transmission case.
  5. Disconnect the HO2S electrical connector (1) from the engine wiring harness.
    6. Fig 2: Locating HO2S
    GM1949886Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Refer to Exhaust Service Warning

    CAUTION:

    Refer to Heated Oxygen and Oxygen Sensor Caution .

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