GM Service Manual Online
For 1990-2009 cars only

    Object Number: 959544  Size: SH

    Important: To remove the 5 upper manifold bolts, use a 1/4 inch drive T-30 TORX and long 1/4 inch drive extension.

  1. Remove the upper manifold to spacer plate bolts.

  2. Object Number: 952138  Size: SH
  3. Remove the intake manifold bolt near the throttle body.
  4. Remove the upper intake manifold assembly.

  5. Object Number: 946642  Size: SH
  6. Remove the lower intake manifold spacer plate bolts.

  7. Object Number: 951932  Size: SH
  8. Remove the intake spacer plate.
  9. Seals are re-usable if not damaged. If O-ring seals are being replaced, remove seals from both sides.

  10. Object Number: 963025  Size: SH
  11. The intake spacer plate has O-ring seals on both sides.
  12. Mask off the ports to the intake manifold spacer. Failure to mask off the ports may allow foreign objects to enter the engine resulting in severe damage to the engine.
  13. Clean the spacer plate bolt holes and bolts. Remove all thread locked material.