Removal Procedure

The muffler is serviced as one piece from the catalytic converter to the tail pipe.

1. Raise and support the vehicle. Refer to JACKING AND LIFTING in General Information.
   NOTE: To prevent internal damage to flexible coupling of the catalytic converter assembly, the converter must be supported. The vertical movement at the rear of the catalytic converter assembly must not exceed 6 degrees up or down.
2. Use a utility stand in order to support the catalytic converter.
3. Remove the catalytic converter bolts.
4. Remove the catalytic converter gasket.
5. Remove the exhaust hanger insulators from the exhaust pipes.
6. Support and lower the rear crossmember.
7. Remove the muffler and exhaust pipes towards the front of the vehicle and over the rear axle.
8. Clean the catalytic converter flange and the muffler flange.
   Fig 1: Removing Catalytic Converter Gasket

   Courtesy of GENERAL MOTORS CORP.
   Fig 2: Removing Muffler And Exhaust Pipes Towards Front Of Vehicle And Over Rear Axle

   Courtesy of GENERAL MOTORS CORP.