Exhaust Resonator: Service and Repair

RESONATOR/PIPE ASSEMBLY

REMOVAL

WARNING: THE NORMAL OPERATING TEMPERATURE OF THE EXHAUST SYSTEM IS VERY HIGH. THEREFORE, NEVER WORK AROUND OR ATTEMPT TO SERVICE ANY PART OF THE EXHAUST SYSTEM UNTIL IT IS COOLED. SPECIAL CARE SHOULD BE TAKEN WHEN WORKING NEAR THE CATALYTIC CONVERTER. THE TEMPERATURE OF THE CONVERTER RISES TO A HIGH LEVEL AFTER A SHORT PERIOD OF ENGINE OPERATION TIME.





1. Raise vehicle on hoist and apply penetrating oil to band clamps of components being removed.
2. Remove muffler/pipe assembly.
3. Loosen band clamp for resonator/pipe assembly.
4. Remove resonator/pipe assembly.

NOTE:
- Band clamps are spot welded to exhaust system. If a band clamp must be replaced, the spot weld must be ground off the exhaust pipe.
- When replacement is required on any component of the exhaust system, it is most important that original equipment parts (or their equivalent) be used for the following reasons:

- To insure proper alignment with other parts in the system.
- Provide acceptable exhaust noise levels and does not change exhaust system back pressure that could affect emissions and performance.

INSTALLATION

NOTE: Always work from the front to rear of exhaust system when aligning and tightening exhaust system components.

1. Loosely install resonator/pipe assembly and muffler/pipe assembly.
2. Install support isolators to muffler supports.
3. Align resonator/pipe assembly and muffler/pipe assembly to maintain position and proper clearance with underbody parts. All support isolators should have equal load on them. Tighten resonator/pipe assembly band clamp to 54 Nm (40 ft. lbs.).
4. Tighten muffler/pipe assembly band clamp to 54 Nm (40 ft. lbs.).
5. Connect ground strap to muffler.
6. Lower vehicle.