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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 789 (Engine Exhaust System) >> Repair Instructions >> Catalytic Converter Replacement (L61) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the wheel drive shaft heat shield. Refer to Wheel Drive Shaft Heat Shield Replacement .
  3. Remove the heated oxygen sensor (HO2S). Refer to Heated Oxygen Sensor 2 Replacement .
    4. Fig 1: Identifying Catalytic Converter & Muffler Pipe
    GM1650810Courtesy of GENERAL MOTORS CORP.
  4. Remove the catalytic converter to the resonator pipe nuts.
    5. Fig 2: Identifying Catalytic Converter
    GM1650780Courtesy of GENERAL MOTORS CORP.
  5. Remove the catalytic converter to exhaust manifold nuts.
  6. Remove the catalytic converter.
  7. Discard the exhaust gaskets.
  8. Clean the flange mating surfaces of any remaining gasket material.
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