Oxidation Catalytic Converter 6.5L Diesel, All

1. Raise the vehicle.
2. Remove the U-bolts from the rear of the oxidation catalytic converter assembly.
3. Remove the nuts and washers from the front flange.
4. Remove the oxidation catalytic converter from the front of the exhaust pipe and the intermediate exhaust pipe.
5. Remove the oxidation catalytic converter assembly.

1. Install the new oxidation catalytic converter to the front exhaust pipe and the intermediate exhaust pipe.
2. Install the new U-bolt at the rear of the oxidation catalytic converter.

Tighten
Tighten the nuts to 40 N·m (29 lb ft).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Install a new flange gasket and the flange washers and nuts.

Tighten
Tighten the flange nuts to 48 N·m (35 lb ft).

4. Check for clearance and alignment.
5. Lower the vehicle.