GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Warning: Refer to Safety Glasses Warning in the Preface section.

    Danger: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Warning: Refer to Exhaust Service Warning in the Preface section.

  3. Support the exhaust system using a suitable jack.

  4. Object Number: 1949717  Size: SH
  5. Remove the rear insulator hanger to body retaining bolts (1).

  6. Object Number: 1949729  Size: SH

    Note: The right rear muffler to intermediate exhaust assembly retaining nuts (2) are single use parts. They must be discarded after removal.

  7. Remove the right rear muffler to intermediate exhaust assembly retaining bolts (2).
  8. Disconnect the right rear muffler (1) from the intermediate exhaust assembly (3).

  9. Object Number: 1949730  Size: SH
  10. Remove the right rear muffler (1) from the vehicle.

Installation Procedure

    Note: The originally equipped exhaust extension pipe can be cut and reused when replacing a rear muffler. Only reuse if the extension pipe is in an acceptable condition.

  1. Clean the threads of the rear exhaust assembly with a suitable cleaning solvent.

  2. Object Number: 1949730  Size: SH
  3. Install the right rear muffler (1) to the vehicle.

  4. Object Number: 1949729  Size: SH
  5. Align the right rear muffler (1) to the intermediate exhaust assembly (3).
  6. Caution: Refer to Fastener Caution in the Preface section.

  7. Install the right rear muffler to intermediate exhaust assembly retaining bolts (2) and tighten to 45 N·m (33 lb ft).

  8. Object Number: 1949717  Size: SH
  9. Install the rear insulator hanger to body retaining bolts (1) and tighten to 26 N·m  (19 lb ft).
  10. Make sure that the exhaust system is clear of all other components and chassis. If the exhaust system is not clear of all the other components loosen all retaining nuts and re-align. Refer to Exhaust System Alignment.
  11. Lower the vehicle.