Muffler and Tailpipe

Muffler and Tailpipe

Removal

NOTICE: Do not use oil or grease-based lubricants on the isolators. They may cause deterioration of the rubber.

NOTICE: Oil or grease-based lubricants on isolators may cause the exhaust hanger isolators to separate from the exhaust hanger bracket during vehicle operation.

NOTE: The production muffler and tailpipe assembly is a one-piece design. The service muffler and tailpipe is serviced with 2 pieces.

1. WARNING: Shut off the electrical power to the air suspension system prior to hoisting or jacking an air suspension equipped vehicle. Failure to do so may result in unexpected inflation or deflation of the air springs, which may result in shifting of the vehicle during these operations. Failure to follow this instruction may result in serious personal injury.

If equipped, turn the air suspension switch OFF.

2. NOTE: Single exhaust shown, dual exhaust similar.

With the vehicle in NEUTRAL, position it on a hoist.

3. Cut the tailpipe as indicated in the illustration.





4. Remove the 2 nuts, the exhaust damper (if equipped) and the exhaust inlet pipe-to-muffler clamp.
- Discard the nuts.

- To install, tighten the new nuts to 48 Nm (35 lb-ft).

5. Detach the muffler from the exhaust isolators.

6. Detach the tailpipe from the exhaust isolator.

Installation

1. NOTE: Check the isolator for wear or damage. Install a new isolator as necessary.

Position the tailpipe and attach the isolator.

2. NOTE: Check the isolator for wear or damage. Install a new isolator as necessary.

Position the muffler and attach the isolator.

3. NOTE: Install new exhaust fasteners. Do not tighten the fasteners until all components are assembled.

NOTE: Alternately tighten the fasteners to specifications, to draw flanges together evenly.

Connect the muffler and tailpipe and install new fasteners.

- Tighten to 33 Nm (24 lb-ft).





4. Connect the exhaust inlet pipe and muffler.
- Install the clamp, the exhaust damper (if equipped) and the 2 nuts.
- Tighten the new nuts to 48 Nm (35 lb-ft).





5. If equipped, turn the air suspension switch on.