GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Firebird 🢒 Engine 🢒 Engine Controls - 5.7L 🢒 Exhaust Pipe and Muffler Heat Shields Replacement

Removal Procedure
  1. Remove the exhaust muffler. Refer to Muffler Replacement .

    2. Object Number: 21701 Size: SH
  2. Remove the exhaust pipe heat shield bolts.
  3. Remove the exhaust pipe heat shield.

    4. Object Number: 223008 Size: SH
  4. Remove the exhaust muffler heat shield bolts.

    5. Object Number: 223010 Size: SH
  5. Remove the exhaust muffler heat shield bolt.

    6. Object Number: 223012 Size: SH
  6. Remove the exhaust muffler heat shield bolts and bracket.
  7. Remove the exhaust muffler heat shield.

Installation Procedure

    Object Number: 223012 Size: SH
  1. Install the exhaust muffler heat shield.
  2. Install the exhaust muffler heat shield bracket and bolts.

    3. Tighten
    Tighten the muffler heat shield bolts to 2.0 N·m (18 lb in).


    Object Number: 223010 Size: SH
  3. Install the exhaust muffler heat shield bolt.

    4. Tighten
    Tighten the exhaust muffler heat shield bolt to 2.0 N·m (18 lb in).


    Object Number: 223008 Size: SH
  4. Install the exhaust muffler heat shield bolts.

    5. Tighten
    Tighten the muffler heat shield bolts to 2.0 N·m (18 lb in).


    Object Number: 21701 Size: SH
  5. Install the exhaust pipe heat shield.
  6. Install the exhaust pipe heat shield bolts.

    7. Tighten
    Tighten the exhaust pipe heat shield bolts to 2.0 N·m (18 lb in).

  7. Install the exhaust muffler. Refer to Muffler Replacement .