WHERE to power electric fuel pump

[DesertBen44]

So the duralift pump is installed, ground is hooked up, no power yet.

I have read to wire battery power to a relay controlled by the FSS to have the pump run when the ignition is in the Run position; but this all goes over my head. Spent over an hour searching here and other sites, wondering if anyone has a picture of this FSS, or an alternative, a description of another way to do it, anything.

Im just looking for the easiest way to power the electric pump, and I would like to avoid a manual switch in the cab. Any help would be great

 

[FORDF250HDXLT]

a relay is simply a switch,which in this case will switch ON when you turn the key forward.it's turned on for you when it receives power.
you'll use the FSS line (or any line you want,that is powered when you turn the key to run.)
the FSS is the top center most solenoid on the ip.

you want fused power directly from the battery to your pump (not a draw from the fss,or other trigger wire.)

very simple.
run a wire with a built in fuse holder (holding a 5 amp fuse for this pump)
to pin #30.
run your pumps + wire into pin #87
run a ground wire to pin #86 (negative terminal or chassis ground)
run the wire you spliced into the FSS line into pin #85
- pumps line simply goes to ground of course as you mentioned being already done.(negative terminal, frame,wherever is grounded good.)


now when you turn the key forward,the FSS power wire tells the "switch" (relay) to simply open/turn on,making pins 87 and 30 a direct connection,thus making the pump spin via a direct flow of electricity from the battery which is protected via a fuse and the whole works.

 

[DesertBen44]

!

Perfect explanation thankyou! I was confused about the numbers until i bought the relay, now i see what your talking about

Thanks Again!

 

[FORDF250HDXLT]

your very welcome.good luck.