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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 624 (Engine Exhaust System) >> Repair Instructions >> Muffler Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
  1. Deflate the rear suspension air bags, if equipped. Refer to Air Suspension Depressurization Procedure in Air Suspension.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
    3. Fig 1: Exhaust Muffler Nuts
    GM665520Courtesy of GENERAL MOTORS CORP.
  3. Remove the exhaust muffler to catalytic converter flange nuts.
  4. Loosen the exhaust pipe clamp.
  5. Support the rear axle with jack stands.
  6. Remove the right side lower stabilizer nut and position link aside.
  7. Remove the rear track bar right hand nut and bolt.
  8. Remove the right hand rear shock lower bolt and nut.
  9. Disconnect the right hand air suspension level sensor, if equipped. Refer to Air Spring Leveling Sensor Replacement in Air Suspension.
  10. Lower the axle.
    11. Fig 2: Insulators & Muffler Hangers
    GM863025Courtesy of GENERAL MOTORS CORP.
  11. Remove the insulators from the frame hangers.
  12. With the aid of an assistant, slide the muffler rearward in order to remove the muffler from the catalytic converter.
  13. Remove the insulators from the muffler hangers.
  14. Remove the muffler from the vehicle.
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