84. Intake Manifold Installation - Upper

1. Install the upper intake manifold gaskets.
2. Apply threadlock GM P/N 12345382 or equivalent to the threads of the intake manifold bolts.
3. Install the upper intake manifold.

Notice: Refer to Fastener Notice in Service Precautions.

4. Install the upper intake manifold bolts and studs.
^ Tighten the upper intake manifold bolts and studs to 25 Nm (18 ft. lbs.).





5. Install the spark plug wires.
6. Install the EGR valve pipe and gasket.
^ Tighten the EGR valve pipe to 25 Nm (18 ft. lbs.).
7. Install the EGR valve and gasket.
8. Install the EGR valve bolts.
^ Tighten the EGR valve bolts to 25 Nm (18 ft. lbs.).





9. Install the MAP sensor.
10. Install the MAP sensor bolts.
^ Tighten the MAP sensor bolts to 5 Nm (44 inch lbs.).
11. Connect the MAP sensor electrical connector.