GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 LaCrosse 🢒 Engine 🢒 Engine Mechanical - 3.8L 🢒 Upper Intake Manifold Removal

    Object Number: 638520 Size: SH
  1. Remove the spark plug wires from spark plugs and retaining clips.
  2. Remove the wiring harness from fuel rail.
  3. Disconnect the ignition control module connector from the ignition control module assembly.
  4. Remove the ignition control module assembly nuts.
  5. Remove the ignition control module assembly.

    6. Object Number: 965455 Size: SH
  6. Remove the fuel injector rail nuts.
  7. Remove the fuel injector rail.

    8. Object Number: 965462 Size: SH
  8. Remove the engine wiring harness heat shield bolt and nut.
  9. Remove the engine wiring harness heat shield.

    10. Object Number: 965473 Size: SH
  10. Remove the throttle body nuts and bolts.
  11. Remove the throttle body.
  12. Remove the throttle body seal.

    13. Object Number: 965482 Size: SH
  13. Remove the upper intake manifold bolts and studs.
  14. Remove the upper intake manifold.