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 Lifting and Jacking the Vehicle in General Information.
NOTE: To prevent internal damage to the 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.
Fig 1: View Of Catalytic Converter Bolts
Courtesy of GENERAL MOTORS CORP.
3. Remove the catalytic converter bolts.
4. Remove the catalytic converter gasket.
Fig 2: Locating Exhaust Hanger Insulators
Courtesy of GENERAL MOTORS CORP.
5. Remove the exhaust hanger insulators from the exhaust pipes.
6. Support and lower the rear crossmember. AWD models refer to Crossmember Replacement in Frame and Underbody.
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.