GM Service Manual Online
For 1990-2009 cars only

Exhaust Muffler Replacement Front

Removal Procedure

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


    Object Number: 1241655  Size: SH
  1. Remove the nuts and the gasket from the front muffler pipe to the connecting pipe flange.

  2. Object Number: 1241946  Size: SH
  3. Remove the nuts and the gasket from the rear muffler pipe flange.

  4. Object Number: 1241948  Size: SH
  5. Disconnect the front muffler from the rubber hanger.
  6. Remove the front muffler.
  7. Check the exhaust pipe and the front muffler for holes, damage, open seams, or other deterioration which could permit exhaust fumes to seep into the passenger compartment or the trunk.

Installation Procedure


    Object Number: 1241946  Size: SH
  1. Connect the front muffler to the rubber hanger.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Attach the front muffler and the gasket to the rear muffler using the nuts. Secure the front muffler to the rubber hanger.
  4. Tighten
    Tighten the front muffler-to-rear muffler nuts to 30 N·m (22 lb ft).


    Object Number: 1241948  Size: SH
  5. Loosely secure the front muffler assembly to the connecting pipe flange.

  6. Object Number: 1241655  Size: SH
  7. Secure the front muffler assembly to the connecting pipe flange with the nuts.
  8. Tighten
    Tighten the front muffler-to-connecting pipe nuts to 30 N·m (22 lb ft).

Exhaust Muffler Replacement Rear

Removal Procedure

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


    Object Number: 1241946  Size: SH
  1. Remove the nuts and the gasket from the rear muffler pipe flange-to-front muffler pipe flange.

  2. Object Number: 1241949  Size: SH
  3. Detach the rear muffler assembly from the rubber hangers on the tail pipe end.
  4. Remove the rear muffler assembly.
  5. Check the rear muffler and the pipe for holes, damage, open seams, and other deterioration which could permit exhaust fumes to seep into the passenger compartment or the trunk.

Installation Procedure


    Object Number: 1241949  Size: SH
  1. Secure the rear muffler assembly to the rubber hangers on the tail pipe end.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1241946  Size: SH
  3. Secure the nuts and the gasket from the rear muffler pipe flange-to-front muffler pipe flange.
  4. Tighten
    Tighten the front muffler-to-rear muffler nuts to 30 N·m (22 lb ft).