Vortech 1999-2001 Ford 5.4L/6.8L Super Duty/SUV - Manual (Page 19)

P/N: 4FT020-010
©2004 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
02AUG04 v2.1(99-03SuperDuty(4FT v2.1))
7
A. (See Fig. 6-a for the following instructions.) With
the two wiring looms above the fuel pump,
locate the red wire with black stripe in the wiring
loom that runs to the fuel tank. Check the red/
black wire (with a test light) for key-on power,
this wire should show power for approximately
two to four seconds with the key in the on
position.
B. From relay terminal #85 tap the yellow wire into
the red wire with black stripe using the provided
wiretap. Using the test light double check the
wire to ensure a good electrical connection has
been made.
C. From terminal #30 route the heavy red wire
along the chassis up to one of the main power
lugs at the front of the power distribution box.
With the supplied solderless connectors, install
the fuse holder and 20 amp fuse in the red wire
and check with a test light.
D. Connect the short black wire from relay terminal
#86 to a secure ground, free from paint or use
the same ground as the fuel pump.
E. From terminal #87 route and connect the long
red wire to the positive (+) side of the fuel pump.
Secure all wires with the provided tie wraps.
6. FUEL PUMP RELAY INSTALLATION
NOTE: Double check that all wires are connected to their
proper relay lug.
Fig. 6-a
87
87A
86 85
30 GROUND (+)12 VOLT MAIN
POWER LUG
(+) FUEL PUMP
TO RED WIRE w/
BLACK STRIPE
RELAY
7. IN-TANK FUEL PUMP REPLACEMENT (6.8L H.O. Systems Only)
NOTE: The following steps are best performed with the gas
tank with the least amount of fuel in it as possible.
A. Support the gas tank with a jack and remove the
screws securing the two gas tank straps.
B. Slightly lower the gas tank and disconnect the fill
& vent tubes from the gas tank, front and rear.
C. Disconnect the fuel pump/sender wiring har-
ness located in the frame rail and the fuel fill and
overflow lines.
D. Disconnect the fuel feed and return lines using
a springlock tool.
E. Completely lower the gas tank to the ground.
F. Unscrew the outer ring securing the fuel lines
and remove the cover.
G. Depress the two clips securing the plastic fuel
pump enclosure and slide it out of the tank, the
fuel sender float is attached to the fuel pump
enclosure and must be handled with care. Be
careful not to damage the filter.
H. Remove the two screws securing the plastic fuel
pump outlet manifold to the enclosure cap. Pull
the manifold up and away from the fuel pump.