GM Service Manual Online
For 1990-2009 cars only

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1254538  Size: SH
  1. Install the vacuum boost fitting.
  2. Tighten
    Tighten the vacuum boost fitting to 2 N·m (18 lb in).


    Object Number: 1254534  Size: SH
  3. Install the manifold vacuum source cap.

  4. Object Number: 1254532  Size: SH
  5. Install the sight shield retainer ball studs.
  6. Tighten
    Tighten the sight shield retainer ball studs to 7 N·m (62 lb in).


    Object Number: 1012862  Size: SH

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

  7. Install NEW intake manifold-to-cylinder head gaskets.