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Home › Chevrolet › 2004 › Impala LS › Repair and Diagnosis › Engine Mechanical › Engine Exhaust System › Repair Instructions › Muffler Replacement (Dual) › Installation Procedure

Installation Procedure

  1. Install the muffler to the exhaust hangers.
    2. Fig 1: Installing Dual Muffler
    GM460738Courtesy of GENERAL MOTORS CORP.
  2. Support the exhaust system.
  3. Install a new gasket to the catalytic converter and the muffler.
  4. Install the catalytic converter to the muffler. Refer to Catalytic Converter Replacement (3.4L)  or Catalytic Converter Replacement (3.8L) .
  5. Remove the exhaust system support.
  6. Lower the vehicle.
  7. Inspect for exhaust leaks.
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