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Ford F150 Pickup. Instruction - part 1284
Fig. 7: Intake Manifold Spacer Tightening Sequence (4.2L)
Courtesy of FORD MOTOR CO.
Removal & Installation (4.2L - Lower Intake Manifold)
1. Remove upper intake manifold. See REMOVAL (4.2L - UPPER INTAKE MANIFOLD) . Remove
intake manifold spacer. See REMOVAL & INSTALLATION (4.2L - INTAKE MANIFOLD
SPACER) . Disconnect injector harness connectors. Disconnect wiring harness from fuel supply
manifold. See Fig. 10 . Disconnect EGR valve vacuum hose and upper tube fitting. Disconnect upper
radiator hose from engine. Disconnect fuel lines, IMRC harness connector and fuel pressure regulator
hose.
2. Disconnect by-pass hose and PCV heater hose from lower intake manifold. Remove lower intake
manifold bolts, noting position of short and long bolts. See Fig. 11 . Remove lower intake manifold.
Clean all mating surfaces.
3. To install, apply a bead of silicone gasket and sealant to the intake manifold front and rear end seal
mounting points. See Fig. 8 . Install lower intake manifold front and rear end seals. Apply a bead of
silicone gasket and sealant to the lower intake manifold mounting. See Fig. 9 . Position lower intake
manifold. Install lower manifold with short bolts and long bolts in proper positions. See Fig. 11 . To
complete installation, reverse removal procedure. Tighten fasteners in sequence to specification. See Fig.
2003 Ford Pickup F150
2003 ENGINE PERFORMANCE Removal & Installation - Blackwood, Expedition, F150 Pickup & Navigator - Gasoline