Removal Procedure

Replace the entire converter assembly in order to properly service the 3-way catalytic converter.

1. Raise and suitably support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
2. Disconnect the Heated Oxygen Sensor connector. Refer to HEATED OXYGEN SENSOR .
3. Remove the exhaust manifold pipe nuts from the exhaust manifold pipe studs.
   Fig 1: Removing Catalytic Converter & Components

   Courtesy of GENERAL MOTORS CORP.
4. Remove the catalytic converter nuts from the exhaust pipe.
5. Remove the 3-way catalytic converter.
   Fig 2: Removing 3-Way Catalytic Converter & Bolts

   Courtesy of GENERAL MOTORS CORP.