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Home >> GMC >> 2004 >> Jimmy 2D Utility, Part Time, Standard >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust System >> Repair Instructions >> Muffler Replacement (Pickup 4.3L) >> Installation Procedure

Installation Procedure

    Fig 1: View Of Muffler Assembly
    GM42959Courtesy of GENERAL MOTORS CORP.
  1. Install the muffler and NEW gasket to the vehicle.
  2. Connect the insulator to the muffler and tail pipe hanger.
    3. Fig 2: View Of Insulator At Tail Pipe Hanger
    GM364938Courtesy of GENERAL MOTORS CORP.
  3. Connect the insulator to the tail pipe hanger.
    4. Fig 3: View Of Muffler To Catalytic Converter
    GM535790Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the muffler to catalytic converter flange nuts.

    Tighten:  Tighten the muffler to catalytic converter flange nuts to 40 N.m (30 lb ft).

  5. Lower the vehicle.
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