GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2008 🢒 SLS 🢒 Engine 🢒 Engine Mechanical - 2.8L, 3.0L, 3.2L, or 3.6L 🢒 Intake Manifold Installation

    Object Number: 902883 Size: SH
  1. Install the NEW intake manifold gasket.

    2. Object Number: 1507461 Size: SH
  2. Install the intake manifold assembly.

    3. Notice: Refer to Fastener Notice in the Preface section.

    Important: Tighten the intake manifold bolts in a circular pattern starting from the center and moving outward.

  3. Install the intake manifold bolts.

    4. Tighten
    Tighten the intake manifold bolts to 23 N·m (17 lb ft).


    Object Number: 1306504 Size: SH
  4. Place the intake manifold brace to the engine front cover and intake manifold.
  5. Loosely install the bolts.
  6. First tighten the intake manifold brace bolt (1) to the intake manifold.

    7. Tighten
    Tighten the intake manifold brace bolt at the intake manifold to 10 N·m (89 lb in).

  7. Finally tighten the intake manifold brace bolt (2) to the engine front cover.

    8. Tighten
    Tighten the intake manifold brace bolt to the engine front cover to 65 N·m (48 lb ft).


    Object Number: 946076 Size: SH
  8. Install the evaporative (EVAP) solenoid.
  9. Install the EVAP solenoid bolt.

    10. Tighten
    Tighten the EVAP solenoid bolt to 10 N·m (89 lb in).


    Object Number: 946068 Size: SH
  10. Connect the EVAP hose to the upper intake manifold and EVAP solenoid.

    11. Object Number: 902887 Size: SH
  11. Connect the positive crankcase ventilation (PCV) tube assembly to the upper intake manifold and the right camshaft cover.
  12. Install the PCV tube assembly bracket bolts.

    13. Tighten
    Tighten the PCV tube assembly bracket bolts to 10 N·m (89 lb in).


    Object Number: 946063 Size: SH
  13. Install the brake booster hose to the upper intake manifold.