GM Service Manual Online
For 1990-2009 cars only

Exhaust Muffler Insulator, Hanger, and Bracket Replacement 3.8L

Removal Procedure

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

  3. Object Number: 222976  Size: SH
  4. Remove the exhaust muffler hanger bolts.

  5. Object Number: 222982  Size: SH
  6. Remove the exhaust muffler rubber hanger from the muffler.

Installation Procedure


    Object Number: 222982  Size: SH
  1. Install the exhaust muffler rubber hanger to the muffler.

  2. Object Number: 222976  Size: SH
  3. Install the exhaust muffler hanger bolts.
  4. Tighten
    Tighten the exhaust muffler hanger bolts to 9.5 N·m (84 lb in).

  5. Remove the exhaust muffler support.
  6. Lower the vehicle.

Exhaust Muffler Insulator, Hanger, and Bracket Replacement 5.7L

Removal Procedure

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

  3. Object Number: 222989  Size: SH
  4. Remove the exhaust pipe hanger nut.

  5. Object Number: 222977  Size: SH
  6. Remove the exhaust pipe hanger bracket bolts.
  7. Remove the exhaust muffler interior hanger bracket.

Installation Procedure


    Object Number: 222977  Size: SH
  1. Install the exhaust muffler interior hanger bracket.
  2. Install the exhaust pipe hanger bracket bolts.
  3. Tighten
    Tighten the exhaust pipe hanger bracket bolts to 9.5 N·m (84 lb in).


    Object Number: 222989  Size: SH
  4. Install the exhaust pipe hanger nut.
  5. Tighten
    Tighten the exhaust pipe hanger nut to 20 N·m (15 lb ft).

  6. Remove the support from the exhaust muffler.
  7. Lower the vehicle.