GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 LaCrosse 🢒 Engine 🢒 Engine Controls - 3.6L 🢒 Intake Manifold Installation

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

    2. Object Number: 1531007 Size: SH
  2. Install the intake manifold assembly.

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

  3. Install the intake manifold bolts.

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


    Object Number: 1531006 Size: SH
  4. Connect the fresh air positive crankcase ventilation (PCV) hose to the left camshaft cover fitting.

    5. Object Number: 1531001 Size: SH
  5. Connect the dirty air PCV hose to the intake manifold and the right camshaft cover fitting.

    6. Object Number: 1530999 Size: SH
  6. Install the evaporative (EVAP) solenoid.
  7. Install the EVAP solenoid bolt.

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


    Object Number: 1530995 Size: SH
  8. Connect and remove the intake manifold-to-solenoid EVAP hose to the intake manifold and to the EVAP solenoid.
  9. Install the intake manifold-to-solenoid EVAP hose bracket bolt to the intake manifold.

    10. Tighten
    Tighten the intake manifold-to-solenoid EVAP hose bracket bolt to 10 N·m (89 lb in).


    Object Number: 1530992 Size: SH
  10. Connect the vehicle-to-solenoid EVAP hose to the EVAP solenoid.
  11. Install the hose clip to the intake manifold.

    12. Object Number: 1530988 Size: SH
  12. Connect the brake booster hose to the upper intake manifold.