Removal Procedure
Courtesy of GENERAL MOTORS CORP.
- Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle
.
- On automatic transmission equipped vehicles, it may be necessary to lower the rear suspension crossmember to provide clearance for removal of the exhaust muffler.
- Remove the intermediate pipe. Refer to Intermediate Pipe Replacement (6.0L) or Intermediate Pipe Replacement (7.0L) .
- On the 7.0L engines, disconnect the vacuum line from the muffler assembly.
- Remove the left muffler from the hangers (3).
- Remove the left muffler (1).