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

  1. Position and support the catalytic converter under the vehicle.
  2. Install a new catalytic converter gasket.
  3. Install the catalytic converter bolts. Do not tighten the bolts.
    Fig 1: Installing Catalytic Converter Gasket And Bolts
    G01501631Courtesy of GENERAL MOTORS CORP.
  4. Install a new catalytic converter seal.
  5. Install the catalytic converter nuts.

    Tighten 

    1. 5.1. Tighten the nuts to 35 N.m (26 lb ft).
    2. 5.2. Tighten the bolts to 34 N.m (25 lb ft).
  6. Install the oxygen sensor.
  7. Lower the vehicle.
    Fig 2: Installing Catalytic Converter Nuts
    G01501632Courtesy of GENERAL MOTORS CORP.
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