79. Intake Manifold Installation
Important: The intake manifold carrier gaskets are attached to the intake manifold through a snap-lock feature. When you install the intake manifold, the carrier gaskets will remain attached to the manifold. It is not necessary to replace the gaskets unless there is damage to the seals.1. Clean any debris from the cylinder head or intake manifold gaskets. Place the intake manifold in position on the cylinder heads.
Notice: Refer to Fastener Notice in Service Precautions.
2. Install the four spacers (2) and studs (1) and install the remaining six bolts (3).
^ Tighten the intake manifold bolts and studs starting from the center and working outward in a circular pattern to 10 Nm (89 inch lbs.).
3. Connect the throttle body coolant hose (3) to the throttle body inlet pipe (1) and water crossover (4) with hose clamps (2).
4. Connect the fuel rail ground wire at the front of the rear (right) cylinder head.
^ Tighten the fuel rail ground wire retaining bolt to 11 Nm (97 inch lbs.).
5. Attach the fuel rail (1) to the rear left lift bracket (4) using the retaining bolt (3).
^ Tighten the fuel rail bracket retaining bolt to 4 Nm (35 inch lbs.).
6. Install the purge solenoid harness and retaining bolt. Connect the hose to the intake manifold.
^ Tighten the purge solenoid harness retaining bolt to 12 Nm (106 inch lbs.).
7. Connect the throttle body coolant outlet hose (1) to the throttle body coolant pipe (3) with hose clamps (2).
8. Place the coolant overflow pipe (5) on the intake manifold studs (4).
9. Install a new PCV valve in the camshaft cover.
10. Connect the PCV fresh air feed tube (1) to the camshaft cover and the intake manifold,
11. Connect the dirty air PCV tube (1) to the PCV valve (2) and camshaft cover.
12. Connect the EGR and crankcase ventilation pipe at the throttle body spacer.