Exhaust Muffler Replacement V8

Servicing of the muffler, resonator or pipe requires the replacement of the exhaust system as a complete one-piece unit.

Warning: Refer to Exhaust Service Warning in the Preface section.

Warning: Refer to Protective Goggles and Glove Warning in the Preface section.

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Remove the 2 bolts securing the floor panel tunnel brace to the floor panel.
3. Remove the floor panel tunnel brace from the floor panel.
4. Suitably support the exhaust system.
5. Remove the exhaust pipe nuts securing the exhaust pipes to the catalytic converters.



6. Pry the front exhaust hangers (1) free from the rear suspension hanger rods.



7. Apply a suitable lubricant to the tail pipe hanger rods in order to ease the removal of the tail pipe hangers (1).
8. Pry the tail pipe hangers (1) free from the tail pipe hanger rods.



9. With the aid of an assistant, lower the exhaust system (1).
10. Remove the catalytic converter seals. Do not reuse the seals.



11. While the exhaust system is on the floor complete the following:

11.1.

Apply a suitable lubricant to the exhaust pipe hanger rods (3) in order to ease the removal of the front exhaust hangers (2).

11.2.

Pull the front exhaust hangers (2) from the exhaust pipe hanger rods.

1. While the exhaust system is on the floor complete the following:

1.1.	Apply a soapy solution to the following in order to ease the installation of the hangers:

•	The inner diameter of the front exhaust hangers (2)

•	The exhaust pipe hanger rods (3)

•	The inner diameter of the tail pipe hangers

•	The tail pipe hanger rods (1)

1.2.	Press the front exhaust hangers over the exhaust pipe hanger rods.

2. Place NEW seals on the catalytic converter flanges.



3. With the aid of an assistant, raise the exhaust system (1) into position, aligning the exhaust pipe flanges with the studs located in the rear of the catalytic converters.
4. Finger tighten the exhaust pipe nuts to the catalytic converter studs.



5. Press the tail pipe hangers (1) over the tail pipe hanger rods.



6. Press the front exhaust hangers (1) over the rear suspension hanger rods.

Caution: Refer to Fastener Caution in the Preface section.

7. Tighten the exhaust pipe nuts to 17 N·m (13 lb ft).



8. Position the floor panel tunnel brace to the floor panel.
9. Install the 2 bolts securing the floor panel tunnel brace to the floor panel and tighten to 25 N·m (18 lb ft).
10. Lower the vehicle.