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Intake Manifold—Lower Removal 1. Partially drain the cooling system. For additional information, refer to Section 303-03 . 2. Remove the upper intake manifold (9424). For additional information, refer to Intake Manifold—Upper in this section. 3. Remove the fuel supply manifold (9F792). For additional information, refer to Section 303-04B . 4. Disconnect the EGR vacuum tube (9E498). 5. Disconnect the EGR-to-exhaust manifold tube (9D477). * Loosen the nut. 6. Disconnect the upper radiator hose (8260). * Reposition the clamp. * Disconnect the hose. 7. Disconnect the heater hose (18472). * Compress the fitting * Disconnect the hose. 8. Disconnect the intake manifold runner control (IMRC). 9. Position the water bypass tube (8555) aside. 1. Remove the bolts. 2. Position the tube aside. 10. NOTE: Note the location of the six long bolts. Remove the lower intake manifold (9J447). 1. Remove the bolts. 2. Remove the intake manifold. 11. Remove the intake manifold runner control (IMRC) if necessary. For additional information, refer to Section 303-14 . 12. Remove and discard the lower intake manifold sealing components. Installation 1. Refer to the illustration for intake manifold sealing component locations. 2. Install the lower intake manifold front and rear end seals. 1. Apply a bead of sealant to the intake manifold front and rear end seal mounting points as indicated. * Use Silicone Gasket and Sealant F7AZ-19554-EA or equivalent meeting Ford specification WSE-M4G323-A4. 3. Install the lower intake manifold front and rear end seals. 3. Install the intake manifold gaskets (9439). 4. Install the intake manifold runner control (IMRC) if required. For additional information, refer to Section 303-14 . 5. NOTE: The lower intake manifold must be installed within four minutes of applying sealant. Position the lower intake manifold. 1. Apply a bead of sealant to the lower intake manifold mounting at the points indicated. * Use Silicone Gasket and Sealant F7AZ-19554-EA or equivalent meeting Ford specification WSE-M4G323-A4. 3. Position the lower intake manifold.
