Intake Manifold Replacement (On Vehicle)

REMOVAL PROCEDURE





1. Disconnect the battery ground (negative) cable.
2. Drain the coolant.
3. Remove the supercharger.
4. Remove the thermostat housing.
5. Remove the EGR tube at the intake manifold.
6. Remove the electrical connection at the temperature sensor.





7. Remove the intake manifold. The coolant bypass tube will release from the intake manifold as the manifold is removed.
8. Remove the intake manifold gaskets.

INSTALLATION PROCEDURE





1. Install the intake manifold gaskets.

Important: Before installing the manifold, complete the following steps:
^ Use a suitable solvent in order to clean all oil from the cylinder block, the cylinder heads, and the intake manifold sealing surface.
^ Clean any adhesive compound from the intake manifold bolts and the bolt holes.
^ Apply a GM approved sealer to the ends of the intake manifold seals.
^ Apply a GM approved thread locking compound to the intake manifold bolts.





2. Align the coolant bypass tube with the opening in the manifold.
3. Install the intake manifold bolts.
^ Tighten the intake manifold bolts in sequence to 15 Nm (11 ft. lbs.).

Notice: Refer to Fastener Notice in Service Precautions.

4. Install the electrical connector at the temperature sensor.





5. Install the EGR tube to the intake manifold.
6. Install the thermostat housing.
7. Install the supercharger.
8. Fill the cooling system.
9. Connect the battery ground (negative) cable.