Muffler: Service and Repair

Muffler Replacement (4.3L RWD)

Removal Procedure

1. Raise and suitably support the vehicle.

2. Remove the catalytic converter to muffler flange nuts.

3. Disconnect the insulator from the tail pipe hanger.

4. Disconnect the insulator from the muffler and tail pipe hanger.

5. Remove the muffler and gasket 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 insulator to the tail pipe hanger.

4. Install the muffler to catalytic converter flange nuts.
Tighten the muffler to catalytic converter flange nuts to 40 N.m (30 lb ft).
5. Lower the vehicle.

Muffler Replacement (4.3L 4WD)

Removal Procedure

1. Raise and suitably support the vehicle.