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Home >> Pontiac >> 2003 >> Sunfire Standard >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust System >> Repair Instructions >> Catalytic Converter Replacement >> Removal Procedure

Removal Procedure

  1. Raise the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
  2. Remove the post catalytic converter heated oxygen sensor.
    Fig 1: Removing Post Catalytic Converter Heated Oxygen Sensor
    G01581308Courtesy of GENERAL MOTORS CORP.
  3. Support the three-way catalytic converter.
  4. Remove the intermediate pipe bolts.
    Fig 2: Removing Intermediate Pipe Bolts
    G01581309Courtesy of GENERAL MOTORS CORP.
  5. Remove the exhaust manifold nuts (3).
    Fig 3: Removing Exhaust Pipe-To-Exhaust Manifold Nuts
    G01581310Courtesy of GENERAL MOTORS CORP.
  6. Remove the three-way catalytic converter and seals.
  7. Clean the flange surfaces.
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