Catalytic Converter: Service and Repair

Three-Way Catalytic Converter (TWC)

Removal





1. Turn the air suspension service switch OFF. Raise the vehicle on a hoist.
2. Remove the nuts and bolts.





3. Remove the clamp.





4. NOTE: It may be necessary to heat the TWC joint to ease removal.

Separate the Three Way Catalytic Converter (TWC) from the muffler.

Installation

1. NOTE: It may be necessary to heat the TWC joint to ease installation.

Connect the three way catalytic converter to the muffler.





2. Install a new exhaust outlet gasket and install the nuts and bolts. Lower the vehicle and turn the air suspension switch ON.