Removal Procedure

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. 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 .

Fig 1: View Of Catalytic Converter & Exhaust Manifold Pipe Stud Nuts

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Catalytic Converter Movement Notice .

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 2: View Of Catalytic Converter Hangers

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Support the exhaust system where hangers are removed.

Remove the catalytic converter exhaust hangers.
Reposition the exhaust system.
Remove the exhaust manifold pipe gasket.