Intake Manifold

REMOVAL PROCEDURE
1. Disconnect the negative battery cable.

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

2. Raise the vehicle. Suitably support the vehicle. Refer to Vehicle Lifting.
3. Remove the front splash shield.
4. Drain the coolant. Refer to Draining and Filling Cooling System in Cooling System.
5. Close the radiator drain cock.
6. Install the front splash shield.
7. Lower the vehicle.
8. Remove the supercharger. Refer to Supercharger Replacement.





9. Remove the thermostat housing.
10. Remove the EGR tube at the intake manifold.
11. Disconnect the electrical connection at the temperature sensor.





12. Remove the intake manifold.


INSTALLATION PROCEDURE




1. Install the intake manifold.

IMPORTANT: In order to install 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.
^ Apply a GM approved sealer to the ends of the intake manifold seals.
^ Clean any adhesive compound from the intake manifold bolts and the bolt holes.
^ Apply a GM approved thread locking compound to the intake manifold bolts.

2. 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.

3. Install the electrical connector at the temperature sensor.
4. Install the EGR tube to the intake manifold.





5. Install the thermostat housing.
6. Install the supercharger. Refer to Supercharger Replacement.
7. Refill the coolant. Refer to Draining and Filling Cooling System in Cooling System.
8. Connect the negative battery cable.