GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1996 🢒 Regal 🢒 Engine 🢒 Engine Mechanical - 3.8L 🢒 Intake Manifold Removal

Intake Manifold Removal Upper

  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. 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.


    Object Number: 42225 Size: SH
  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 upper intake manifold. Refer to Intake Manifold Removal .
  2. Remove the EGR outlet pipe from the intake manifold.
  3. Remove the engine coolant temperature sensor wiring harness from the coolant outlet stud.

    4. Object Number: 35806 Size: SH
  4. Remove the lower intake manifold bolts.
  5. Remove the lower intake manifold.