GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  2. Object Number: 1238995  Size: SH
  3. Remove the muffler and resonator assembly from the intermediate or crossover pipe.
  4. Remove the muffler from the hangers.

Installation Procedure

  1. Install the muffler to the hangers.

  2. Object Number: 1238995  Size: SH
  3. Install the muffler assembly to the intermediate pipe.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Tighten the muffler assembly nuts.
  6. Tighten
    Tighten the muffler assembly nuts to 20 N·m (15 lb ft).

  7. Lower the vehicle.