Muffler: Service and Repair

Muffler Replacement (Utility 4.3L)

Removal Procedure

Caution: Refer to Protective Goggles and Gloves Caution.

Notice: Refer to Vehicle Lifting and Jacking notice.

Notice: Refer to OEM Standard Notice in Service Precautions.





1. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
2. Remove the catalytic converter to muffler flange nuts.





3. Disconnect the insulator from the tail pipe hanger.





4. Disconnect the insulators from the muffler hanger (4-door utilities).





5. Disconnect the insulator from the muffler and tail pipe hanger.
6. Remove the muffler from the vehicle.

Installation Procedure





1. Install the muffler and NEW gasket to the vehicle.
2. Connect the insulator to the muffler and tail pipe hanger.





3. Connect the insulators to the muffler hanger (4-door utilities).





4. Connect the insulator to the tail pipe hanger.

Notice: Refer to Fastener Notice in Service Precautions.





5. Install the muffler to catalytic converter flange nuts.
^ Tighten the muffler to catalytic converter flange nuts to 40 Nm (30 ft. lbs.).
6. Lower the vehicle.