Vortech 1993-1996 5.2L Grand Cherokee - Manual (Page 17)

FLOW
FRONT OF VEHICLE
11
10B. AUXILIARY FUEL PUMP
(1996-1997 Models Only)
A. An additional fuel pump is supplied to ensure that
sufficient fuel is available to the engine. The pump
is mounted underneath the new battery tray.
B. Open, then close the fuel filler cap to vent any
residual pressure. Disconnect the stock fuel supply
hose where it enters the fuel rail.
C. Following the graphic on the next page, insert
hose assembly A into the factory feed line until it
snaps into place. Loop the hose assembly around
and into the 1/4" tee assembly.
D. Attach the Vortech fuel pump to the bottom of the
battery tray using the supplied #10 hardware and
adel clamps. See graphic.
E. Use the supplied length of short black wire to
ground the fuel pump.
F. Mark and drill a 1/8" hole and mount the supplied
relay on the passenger side inner fenderwell near
the fuse box. Connect the short black wire from the
relay terminal #86 to ground.
G. From relay terminal #85, route the yellow
wire to the bottom of the underhood fuse
box. Tap the yellow relay wire into the
factory fuel pump relay wire connected to
pin #87 on the factory fuel pump relay (the
wire can be various colors but usually is
green with a white stripe) using the supplied
wire tap. Double check the wire choice by
using a test light to confirm that when the
key is initially turned on, the wire has power for
4-8 seconds and then turns off.
H. Connect the long red wire from relay terminal #87
to the (+) terminal on the fuel pump.
I. Connect the short red wire from relay terminal #30
to the external fuse box (+) lug.
J. Assemble the brass fittings and hoses as shown in
the graphic. Make sure hose "B" makes a positive
snap connection onto the fuel rail.
K. Using the supplied tie wraps, secure all hoses
from sharp edges, moving parts or chaffing.
L. Activate the fuel pump and check all fittings,
connections and hoses for leaks.
WARNING: Take great care to minimize fuel
spillage and always have a second person
stand by with a fire extinguisher as a
precaution.
GROUND
87
87A
30
86 85
(+) FUEL PUMP
LUG FROM BATTERY
TO FUSE PANEL
UNDERHOOD
RELAY
GREEN/WHITE @
PIN #87 OF
FACTORY FUEL
PUMP RELAY
FUEL PUMP MOUNTED
UNDERNEATH
BATTERY TRAY