Lower Intake Manifold: Removal
WARNING: This page is about a different variant/trim than selected.
NOTE:
During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces that enters the oil passages, coolant passages or the oil pan, can cause engine failure.
NOTE:
It is not necessary to remove the fuel rail from the intake manifold assembly.
- With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting - Overview .
- Release the fuel system pressure. Refer to: Fuel System Pressure Release .
- Disconnect the battery ground cable. Refer to: Battery Disconnect and Connect - Vehicles With: Single Battery . Refer to: Battery Disconnect and Connect - Vehicles With: Dual Batteries .
- Drain the cooling system. Refer to: Engine Cooling System Draining, Vacuum Filling and Bleeding .
- Remove the upper intake manifold. Refer to: Upper Intake Manifold .
- Disconnect the fuel tube quick release coupling. Refer to: Quick Release Coupling
.
- Remove the fuel rail sound insulators.
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NOTE: Cover the accessory drive belts to prevent coolant contamination of the belts.
Completely cover the accessory drive belts with waterproof plastic.
- Remove the bolts and position the thermostat housing aside.
- Inspect and replace if necessary.
- Remove and discard thermostat housing O-ring seal.
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- Disconnect the fuel injector electrical connectors.
- Disconnect the coolant tube from the lower intake manifold.
- Remove the bolts and the lower intake manifold.
- Remove and discard the lower intake manifold gaskets.
- Clean and inspect all sealing surfaces.