For 1990-2009 cars

Caution: Refer to Fastener Caution in the Preface section.

1. Install the vacuum boost fitting.

Tighten
Tighten the vacuum boost fitting to 2 N·m (18 lb in).

2. Install the manifold vacuum source cap.
3. Install the sight shield retainer ball studs.

Tighten
Tighten the sight shield retainer ball studs to 7 N·m (62 lb in).

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

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