Removal Procedure

WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Refer to Exhaust Service Warning .

WARNING:

Refer to Protective Goggles and Glove Warning .

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
Support the exhaust system near the resonator with a suitable jack.
Remove the oxygen sensor. It is not necessary to disconnect the electrical connector.

Fig 1: View Of Exhaust Pipe To Catalytic Converter

Courtesy of GENERAL MOTORS COMPANY

Remove the nuts securing the catalytic converter to the exhaust manifold pipe.

Fig 2: View Of Center Exhaust Hangers & Bolts

Courtesy of GENERAL MOTORS COMPANY

Remove the bolts securing the center exhaust hangers to the rear suspension support brackets.
Remove the catalytic converter from the manifold pipe.
Lower the exhaust system.

Fig 3: Identifying Catalytic Converter Gasket

Courtesy of GENERAL MOTORS COMPANY

Remove the catalytic converter gasket (1). Do not reuse the gasket.

Fig 4: Identifying Pipe Cut Location

Courtesy of GENERAL MOTORS COMPANY

NOTE:

Ensure the cut (1) is made 34 mm (1.3 in) from the weld on the intermediate pipe.

Cut the intermediate pipe 34 mm (1.3 in) from the resonator weld.