Econoline E150 1/2 Ton V8-5.4L SOHC VIN L (1999)
5. Install the studs.
6. Install the upper intake manifold.
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Position the upper intake manifold gaskets.
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Position the upper intake manifold.
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Loosely install the nine bolts.
7. On 4.6L, and 5.4L, NGV engines, connect the intake manifold tuning valve connector.
8. Install the water thermostat.
9. Tighten the bolts in two stages, in the sequence shown.
Stage 1: 2 Nm (18 inch lbs.)
Stage 2: 20-30 Nm (15-22 ft. lbs.)
10. Position the throttle body onto the upper intake manifold and install the bolts.
