For 1990-2009 cars

1. Install the intake manifold spacer (2) and install the intake manifold spacer seals.
2. Install the intake manifold spacer bolts (1).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Tighten
Tighten the intake manifold spacer bolts to 20 N·m (15 lb ft).

3. Install the intake manifold (2) and install the intake manifold seals (3).
4. Install the intake manifold bolts (1).

Tighten
Tighten the intake manifold bolts to 20 N·m (15 lb ft).