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

Removal Procedure

NOTE: To prevent internal damage to the flexible coupling of the catalytic converter assembly, the converter must be supported. The vertical movement at the rear of the catalytic converter assembly must not exceed 6 degrees up or down.
  1. Raise and support the vehicle.
  2. If the vehicle is equipped with All-Wheel-Drive, remove the propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT .
  3. Remove the catalytic converter nuts from the exhaust manifold studs.
    Fig 1: Removing Catalytic Converter Nuts From Exhaust Manifold Studs
    G01501629Courtesy of GENERAL MOTORS CORP.
  4. Remove the oxygen sensor.
  5. Remove the catalytic converter bolts.
  6. Remove the catalytic converter.
    Fig 2: Removing Catalytic Converter Gasket And Bolts
    G01501630Courtesy of GENERAL MOTORS CORP.
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