Lower Intake Manifold

Lower Intake Manifold





Material





Removal

WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited, resulting in possible personal injury.

WARNING: Fuel in the fuel system remains under high pressure even when the engine is not running. Before repairing or disconnecting any of the fuel system components, the fuel system pressure must be relieved to prevent accidental spraying of fuel, causing personal injury or a fire hazard.

1. Release the fuel system pressure.
2. Disconnect the battery ground cable.
3. Remove the upper intake manifold.





4. CAUTION: When reusing liquid or vapor tube connectors, make sure to use compressed air to remove any foreign material from the connector retaining clip area before separating the tube.

NOTE: Carefully release the locking tabs to avoid breakage.

Release the fuel tube-to-fuel rail quick connect coupling primary locking tab.





5. Rotate the primary locking tab to the fully opened position and squeeze the secondary locking tabs to release the locking mechanism.





6. Push the locking mechanism outward and release the tube.
7. Disconnect the fuel rail pressure and temperature sensor electrical connector and vacuum tube.
8. Disconnect the 6 fuel injector electrical connectors.
9. Remove the 8 lower intake manifold bolts and the lower intake manifold.

Installation





1. Position the lower intake manifold and install the bolts.
^ Tighten in the sequence shown to 10 Nm (89 inch lbs.).
2. Connect the fuel injector electrical connectors.
3. Connect the fuel rail pressure and temperature sensor electrical connector and vacuum tube.





4. NOTE: Make sure the collar on the fuel tube is inserted fully into the quick release coupling before the locking tang is locked.

NOTE: Apply clean engine oil to the end of the tube before inserting a tube into the connector.

Connect the fuel tube quick connect coupling.
^ Connect the quick lock coupling to the tube.
^ Press the quick connect coupling locking tangs into position.
^ Pull on the fitting to make sure it is fully engaged.
5. Install the upper intake manifold.
6. Connect the battery ground cable.