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Removal Procedure

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Locating Oxygen Sensor Wiring Harness
    GM195267Courtesy of GENERAL MOTORS CORP.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
    2. NOTE: Refer to Catalytic Converter Movement Notice .
  2. Support the exhaust system.
  3. Remove the catalytic converter. Refer to Catalytic Converter Replacement .
  4. Remove the oxygen sensor wiring harness (3) from the catalytic converter heat shield.
    5. Fig 2: View Of Catalytic Converter Heat Shield
    GM289490Courtesy of GENERAL MOTORS CORP.
  5. Remove the catalytic converter heat shield rivets.
  6. Remove the catalytic converter heat shield.
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