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Home >> Pontiac >> 2004 >> Sunfire Standard >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust System >> Repair Instructions >> Catalytic Converter Replacement >> Installation Procedure

Installation Procedure

  1. Install the three-way catalytic converter seals.
    Fig 1: Exploded View Of Intermediate Pipe Bolts
    GM25258Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  2. Install the intermediate pipe bolts.

    Tighten:  Tighten the intermediate pipe bolts to 30 N.m (22 lb ft).

  3. Install the three-way catalytic converter to the exhaust manifold.

    Tighten:  Tighten the exhaust manifold pipe nuts (3) to 30 N.m (22 lb ft).

    Fig 2: Locating Exhaust Manifold To Flex Decoupler Nuts
    GM783174Courtesy of GENERAL MOTORS CORP.
  4. Install the post catalytic converter heated oxygen sensor.
    Fig 3: View Of HO2S 2
    GM10975Courtesy of GENERAL MOTORS CORP.
  5. Lower the vehicle.
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