GM Service Manual Online
For 1990-2009 cars only

    Object Number: 682822  Size: SH

    Important: Do not reuse the intake manifold-to-cylinder head sealing gaskets.

  1. Remove and discard the intake manifold-to-cylinder head gaskets.

  2. Object Number: 682823  Size: SH
  3. Remove the pressure relief valve bolts.
  4. Remove the pressure relief valve.

  5. Object Number: 522675  Size: SH
  6. Remove the vacuum cap.