Installation Procedure

WARNING: This page is about a different car, the 2002 Pontiac Aztek and 2002 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Position and support the catalytic converter under the vehicle.
Install a new catalytic converter gasket.
Install the catalytic converter bolts. Do not tighten the bolts.

Fig 1: Installing Catalytic Converter & Bolts
Courtesy of GENERAL MOTORS CORP.
Install a new catalytic converter seal.
NOTE: Refer to FASTENER NOTICE .
Install the catalytic converter nuts.
Tighten
1. 5.1. Tighten the nuts to 35 N.m (26 lb ft).
2. 5.2. Tighten the bolts to 34 N.m (25 lb ft).
Install the oxygen sensor. Refer to HEATED OXYGEN SENSOR .
Lower the vehicle.

Fig 2: Installing Catalytic Converter Seal & Nuts
Courtesy of GENERAL MOTORS CORP.