Installation Procedure

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

Install the oxygen sensor to the catalytic converter. Refer to Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 .

IMPORTANT: Inspect the catalytic converter seal/heat shield sealing surface. Replace the seal/heat shield if the sealing surface is worn or damaged.

Install the catalytic converter seal/heat shield to the catalytic converter.

Fig 1: View of Catalytic Converter & Nuts

Courtesy of GENERAL MOTORS CORP.

Carefully install the catalytic converter to the exhaust manifold.
Install the catalytic converter nuts.
Connect the oxygen sensor electrical connector.

Fig 2: Identifying Muffler Pipes At Left And Right Side Catalytic Converters

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .

IMPORTANT: Inspect the catalytic converter seals. Replace the seals if they are worn or damaged.

Install the exhaust pipe and nuts to the left and right side catalytic converters.
Tighten: Tighten the nuts to 22 N.m (16 lb ft).
Lower the vehicle.
Tighten the catalytic converter to exhaust manifold nuts.
Tighten: Tighten the catalytic converter nuts to 50 N.m (37 lb ft).
Install the right bank exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement - Left Side .