Muffler Replacement
Muffler Replacement
Removal Procedure
1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Important: Do not reuse any component of the exhaust system that is corroded or damaged.
Important: When replacing the muffler in a vehicle with the LL8 engine, the resonator and tailpipe must also be ordered. The two pieces may be attached with a clamp.
Inspect the exhaust system components to determine if they can be reused.
3. Remove the frame brace.
4. Remove the nuts that secure the muffler to the catalytic converter pipe.
5. Separate the muffler and the tail pipe assembly from the hanger insulators.
6. Lower the muffler and tail pipe assembly.
7. Suitably support the exhaust system.
8. Cut the exhaust pipe at the dashed line (1).
9. Remove the muffler from the tail pipe.
Installation Procedure
1. Install the new muffler to the tail pipe.
2. Attach the muffler and tail pipe to the hanger insulators.
3. Notice: Install the muffler to the catalytic converter and secure with the nuts.
^ Tighten the nuts to 45 Nm (33 ft. lbs.).
4. Loosely install the clamp to secure the muffler to the tail pipe.
5. Align the tail pipe in the proper position.
^ Tighten the clamp nuts to 50 Nm (37 ft. lbs.).
6. Inspect the exhaust system for leaks and underbody contact.
7. Install the frame brace.
8. Lower the vehicle.