GM Service Manual Online
For 1990-2009 cars only

Exhaust Muffler Replacement Front

Removal Procedure

    Caution: Refer to Hot Exhaust System Caution in the Preface section.


    Object Number: 1225436  Size: SH
  1. Remove the front exhaust pipe-to-front muffler nuts (1).

  2. Object Number: 1225446  Size: SH
  3. Remove the front muffler-to-rear muffler nuts.
  4. Detach the front muffler from rubber hanger and remove the front muffler.

Installation Procedure


    Object Number: 1225444  Size: SH
  1. Hang the front muffler to rubber hanger.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the front muffler-to-rear muffler nuts.
  4. Tighten
    Tighten the nuts to 25 - 35 N·m (18 - 25 lb ft).

  5. Install the exhaust pipe-to-front muffler nuts (1).
  6. Tighten
    Tighten the nuts to 25 - 35 N·m (18 - 25 lb ft).

Exhaust Muffler Replacement Rear

Removal Procedure


    Object Number: 1225446  Size: SH
  1. Remove the front muffler-to rear muffler nuts.
  2. Detach the rear muffler from the rubber hangers.

  3. Object Number: 1225449  Size: SH
  4. Remove the rear muffler.

Installation Procedure


    Object Number: 1225449  Size: SH
  1. Install rear muffler.
  2. Attach rear muffler to rubber hangers.
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1225446  Size: SH
  4. Install front muffler to rear muffler nuts.
  5. Tighten
    Tighten the nuts to 25 - 35 N·m (18 - 25 lb ft).