GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1684165  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the frame brace, if equipped. Refer to Frame Replacement .
  3. If equipped with a 2.4L engine, remove the exhaust manifold pipe to muffler nuts.

  4. Object Number: 1459614  Size: SH
  5. If equipped with a 3.5L, or a 3.9L engine with a automatic transaxle, remove the right (rear) catalytic converter to muffler nuts.

  6. Object Number: 1586011  Size: SH
  7. If equipped with a 3.9L with a manual transaxle, remove the exhaust pipe to muffler nuts.

  8. Object Number: 1586052  Size: SH
  9. With the aid of an assistant , remove the muffler insulators from the hangers.
  10. Remove the muffler assembly.

Installation Procedure


    Object Number: 1586052  Size: SH

    Important: Replace the muffler hangers any time the exhaust system is removed from the vehicle. Do not use any mineral oil based lubricants or sharp tools when installing new exhaust system hangers.

  1. With the aid of an assistant , position the muffler assembly.
  2. Install the muffler insulators to the hangers.
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1586011  Size: SH
  4. If equipped with a 3.9L with a manual transaxle, install the exhaust pipe to muffler nuts.
  5. Tighten
    Tighten the nuts to 30 N·m (22 lb ft).


    Object Number: 1459614  Size: SH
  6. If equipped with a 3.5L, or a 3.9L engine with a automatic transaxle, install the right (rear) catalytic converter to muffler nuts.
  7. Tighten
    Tighten the nuts to 30 N·m (22 lb ft).


    Object Number: 1684165  Size: SH
  8. If equipped with a 2.4L engine, install the exhaust manifold pipe to muffler nuts.
  9. Tighten
    Tighten the nuts to 30 N·m (22 lb ft).

  10. Install the frame brace, if equipped. Refer to Frame Replacement .
  11. Lower the vehicle.