GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 898891  Size: SH
  1. Disconnect the fuel pressure regulator hose from the throttle body and fuel rail.

  2. Object Number: 895188  Size: SH
  3. Remove the throttle body.

  4. Object Number: 895190  Size: SH
  5. Remove the fuel pipes and clip.
  6. Remove the fuel rail assembly.

  7. Object Number: 897471  Size: SH
  8. Remove the knock sensor connector from the intake manifold.
  9. Remove the knock sensor.

  10. Object Number: 895191  Size: SH
  11. Remove the intake manifold retaining nuts and bolts.
  12. Remove the intake manifold.
  13. Remove the intake manifold gasket. The gasket is reusable if it is not damaged.
  14. If the intake manifold needs to be replaced, transfer the following parts:
  15. • The throttle body
    • The body gasket. The manifold to throttle body gasket is reusable if it is not damaged.