Removal Procedure

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
NOTE: Refer to Catalytic Converter Movement Notice in Cautions and Notices.

IMPORTANT: Exercise 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 nuts from the exhaust manifold pipe studs.

Fig 1: Removing Exhaust Manifold Nuts
Courtesy of GENERAL MOTORS CORP.

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

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