GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Chevy K Silverado - 4WD 🢒 Engine 🢒 Engine Mechanical - 8.1L 🢒 Exhaust Manifold Installation - Right Side

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 470723 Size: SH
  1. Install the exhaust manifold studs into the cylinder head, if necessary.

    2. Tighten
    Tighten the exhaust manifold studs to 20 N·m (15 lb ft).


    Object Number: 470719 Size: SH
  2. Install the NEW right exhaust manifold gasket.
  3. Install the right exhaust manifold.
  4. Install the right exhaust manifold nuts and center bolt.

    5. Tighten

        • Tighten the right exhaust manifold center bolt to 35 N·m (26 lb ft).
        • Tighten the right exhaust manifold nuts to 16 N·m (12 lb ft).

    Object Number: 470706 Size: SH
  5. Install the right exhaust manifold heat shield.
  6. Install the right exhaust manifold heat shield bolts and nuts.

    7. Tighten
    Tighten the right exhaust manifold heat shield bolts and nuts to 25 N·m (18 lb ft).


    Object Number: 470727 Size: SH
  7. Install the right spark plugs.

    8. Tighten
    Tighten the right spark plugs to 30 N·m (22 lb ft).


    Object Number: 470704 Size: SH

    Important: Fully install the spark plug wire by pushing on the exposed end of the spark plug boot. Do not push the spark plug wire on to the spark plug by using the metal heat shield.

  8. Install the right spark plug wires to the spark plugs and ignition coils.

    9. Object Number: 635635 Size: SH
  9. Install the exhaust gas recirculation (EGR) pipe and NEW EGR pipe gaskets.
  10. Install the EGR pipe nuts to the right exhaust manifold.

    11. Tighten
    Tighten the EGR pipe nuts to 25 N·m (18 lb ft).

  11. Install the EGR pipe bolts to the EGR adapter.

    12. Tighten
    Tighten the EGR pipe bolts to 25 N·m (18 lb ft).

  12. Install the EGR pipe bracket bolt.

    13. Tighten
    Tighten the EGR pipe bracket bolt to 50 N·m (37 lb ft).