GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 LeSabre 🢒 Engine 🢒 Engine Mechanical - 3.8L 🢒 Upper Intake Manifold Removal

    Object Number: 638520 Size: SH
  1. Remove the spark plug wires.
  2. Disconnect the ignition wires from the fuel injector 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: 153568 Size: SH
  6. Remove the fuel injector rail nuts.
  7. Remove the fuel injector rail.

    8. Object Number: 192745 Size: SH
  8. Remove the accelerator control cable bracket bolts.
  9. Remove the accelerator control cable bracket from the intake manifold.

    10. Object Number: 211908 Size: SH
  10. Remove the engine wiring harness heat shield bolt and nut.
  11. Remove the engine wiring harness heat shield.

    12. Object Number: 153566 Size: SH
  12. Remove the throttle body nuts.
  13. Remove the throttle body.
  14. Remove the throttle body gasket.

    15. Object Number: 42225 Size: SH
  15. Remove the upper intake manifold bolts and nuts.
  16. Remove the upper intake manifold.