Removal Procedure

WARNING: This page is about a different car, the 2002 Pontiac Aztek and 2002 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

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

Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
Use a utility stand in order to support the catalytic converter.
Remove the catalytic converter bolts.
Remove the catalytic converter gasket.

Fig 1: Removing Catalytic Converter Gasket & Bolts
Courtesy of GENERAL MOTORS CORP.
Remove the exhaust hanger insulators from the muffler.
If the vehicle is equipped with All-Wheel-Drive (AWD) use a utility stand in order to support and lower the crossmember. Refer to CROSSMEMBER .
Remove the muffler towards the front of the vehicle.
Clean the catalytic converter flange and the muffler flange.

Fig 2: Removing Muffler
Courtesy of GENERAL MOTORS CORP.