Vortech 2004-2006 Ford 5.4L 3V F-150 - Manual (Page 11)

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P/N: 4FN020-010
©2007 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
02MAR07 v2.0 Ford F-150(4FNv2.0)
A. Relieve the fuel system pressure
B. Disconnect the eight fuel injector plugs and
retaining clips from the injectors.
C. Remove the four screws that hold down the
fuel rail on the intake manifold. Lift up on the
rails evenly and remove all eight injectors.
D. Using a small amount of clean motor oil,
lightly lubricate the O-rings on both ends of
the Vortech supplied fuel injectors.
E. Install the new injectors into the fuel rails
reusing the factory retaining clips.
F. Carefully lower the fuel rail/injector assem-
bly down onto the intake manifold. Check to
see that each injector has been seated
properly into the intake manifold.
G. Tighten down the fuel rail assembly with the
original bolts and attach the injector plugs to
the injectors.
3. FUEL INJECTOR REPLACEMENT
NOTE Complete removal of the fuel rail will aid in injector
replacement. Separate the fuel rail supply line from
the rail using springlock disconnect tool.