Vortech 1986-1993 Ford 5.0L Mustang - Manual (Page 15)

A. Using the factory ground lug between the inner
fenderwell and the water tank, ground the black
wire coming from the water pump.
B. Route the red wire through the firewall to the
fuse panel.
C. With a test light find 20 amp, fused, key-on
power. Remove the fuse and install the
provided fuse tap on fused side and reinstall
the fuse, check again for power. (The heater
blower motor fuse works well.)
D. Fill water tank with 25% antifreeze and 75%
water up to approximately 3” from the top.
E. Turn the ignition key to the “on” position and
check that water is flowing through the system.
Fill tank to one inch below filler ring.
10
9. Water Pump Wiring
NOTE: Do not attach the red wire to power
until the water tank is full of water, running
the water pump without water will lead to
premature failure and void your warranty.
NOTE: In many cases, the water pump must
be primed on initial start-up. This may be
accomplished by turning on the pump,
removing the RETURN line from the tank and
providing light suction on the hose to remove
the air in the system.
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