Servicing of the catalytic converter requires the replacement of the muffler and tailpipe as a complete one-piece unit.

1. Remove the oxygen sensor. Refer to Heated Oxygen Sensor Replacement in Engine Controls.
2. Support the converter.



3. Remove the front pipe to catalytic converter nuts.



4. Remove the intermediate pipe hangers at body mounts.
5. Remove rear hanger at the tailpipe to chassis mount.
6. Remove the exhaust system from the vehicle.

1. Support the exhaust system at the converter.
2. Align the exhaust to the underbody of the vehicle.
3. Align the converter to the front pipe flange and start the nuts on the converter studs.




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.

4. Connect the center exhaust hanger to the the underbody.

Tighten
Tighten the fastener to 30 N·m (22 lb ft).

5. Connect the rear exhaust hanger to the the rear compartment rail.

Tighten
Tighten the fastener to 50 N·m (37 lb ft).

6. Tighten the front pipe to converter nuts.

Tighten
Tighten the nuts to 25 N·m (18 lb ft).

7. Install the oxygen sensor. Refer to Heated Oxygen Sensor Replacement in Engine Controls.