GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1997 🢒 LeSabre 🢒 Engine 🢒 Engine Mechanical - 3.8L 🢒 Intake Manifold Removal

Intake Manifold Removal Upper


    Object Number: 35834 Size: SH
  1. Remove the right spark plug wires. Set the wires aside.
  2. Disconnect the ignition wires from the fuel rail.
  3. Remove the fuel rail.
  4. Remove the cable bracket from the intake manifold.
  5. Remove the throttle body.

    6. Object Number: 42225 Size: SH

    Notice: The two bolts which fasten the lower intake manifold to the cylinder head are accessible only after the upper intake is removed. The bolts are located in the right front and left rear corners of the lower intake manifold. Remove the upper intake manifold to service the lower intake.

  6. Remove the upper intake manifold bolts.
  7. Remove the upper intake manifold.

Intake Manifold Removal Lower

    Notice: The two bolts which fasten the lower intake manifold to the cylinder head are accessible only after the upper intake is removed. The bolts are located in the right front and left rear corners of the lower intake manifold. Remove the upper intake manifold to service the lower intake.

  1. Remove the EGR outlet pipe from the intake manifold.

    2. Object Number: 42225 Size: SH
  2. Remove the lower intake manifold bolts.
  3. Remove the lower intake manifold and gasket.