Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Raise and support the vehicle. Refer to JACKING AND LIFTING 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.

Important: Use caution handling the pipe that contains an oxygen sensor. Do not cut the wire. For removal or repositioning disconnect the connector.
Remove the exhaust manifold pipe stud nuts from the exhaust manifold studs.

Fig 1: Removing Exhaust Manifold Pipe Stud Nuts From Exhaust Manifold Studs
Courtesy of GENERAL MOTORS CORP.

Important: Support the exhaust system where hangers are removed.
Remove the catalytic converter exhaust hangers.
Reposition the exhaust system.

Fig 2: Removing Catalytic Converter Exhaust Hangers
Courtesy of GENERAL MOTORS CORP.
Remove the exhaust manifold pipe gasket.

Fig 3: Removing Exhaust Manifold Pipe Gasket
Courtesy of GENERAL MOTORS CORP.