Muffler: Service and Repair

Muffler Replacement (4.3L, 4.8L, and 5.3L Engines)
Removal Procedure





1. Raise and suitably support the vehicle.
2. Remove the exhaust muffler nuts.





3. Apply lubricant to the exhaust insulators in order to aid in removal.
4. Remove the muffler brackets from the insulators.
5. Remove the exhaust muffler.

Installation Procedure





1. Apply lubricant to the exhaust insulators in order to aid in installation.
2. Install the muffler to the insulators.





3. Notice: Refer to Fastener Notice in Service Precautions.

Install the exhaust muffler nuts.
Tighten the nuts to 40 Nm (30 ft. lbs.).