GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 LaCrosse 🢒 Engine 🢒 Engine Mechanical - 3.8L 🢒 Upper Intake Manifold Installation

    Object Number: 965482 Size: SH
  1. Install the upper intake manifold gasket.
  2. Install the upper intake manifold.

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


    Object Number: 1229793 Size: SH
  3. Install the upper intake manifold bolts and studs and tighten the upper intake manifold bolts and studs in sequence to 10 N·m (89 lb in).

    4. Object Number: 965473 Size: SH
  4. Install the throttle body gasket.
  5. Install the throttle body.
  6. Install the throttle body nuts and bolts and tighten to 10 N·m (89 lb in).

    7. Object Number: 965462 Size: SH
  7. Install the engine wiring harness heat shield.
  8. Install the engine wiring harness heat shield bolt and nut and tighten to 10 N·m (89 lb in).

    9. Object Number: 965455 Size: SH
  9. Install the fuel injector rail.
  10. Install the fuel injector rail nuts and tighten to 10 N·m (89 lb in).

    11. Object Number: 638520 Size: SH
  11. Install the ignition control module assembly.
  12. Install the ignition control module assembly bracket nuts and tighten to 50 N·m (37 lb ft).
  13. Connect the ignition control module connector to the ignition control module assembly.
  14. Install the wiring harness to the fuel rail.
  15. Install the spark plug wires to the retaining clips and spark plugs.