GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 Lucerne 🢒 Engine 🢒 Engine Mechanical - 3.9L 🢒 Lower Intake Manifold Removal

    Object Number: 1645446 Size: SH
  1. Disconnect the coolant temperature sensor (1).
  2. Disconnect the camshaft position (CMP) sensor (2).
  3. Remove the fuel injector rail bolts.
  4. Remove the fuel rail assembly.

    5. Object Number: 54281 Size: SH
  5. Remove the lower intake manifold bolts and discard.
  6. Remove the lower intake manifold.