OK here is my ?? I want to wire my Intercooler Pump to turn on with a switch under the hood without turning on the ignition key. If I am correct I would run a hot wire to the hot side of the pump thru a switch that connects to the battery.

But also I want to connect a 6.5" electrical fan inline with this. I also would like the fan to run with the IC Pump when the engine is running. I could just run all the power for the fan tapping into the ICPump wires. And run the Hot lead from the switch to the battery. BUTT..

I am thinking I need a relay. I bought a 30 amp one that could be used for foglights. It has 2 spots to connect to the accesory or ICPUmp/Fan. A power lead in, Ground and a switch.

IF any one has done this please let me know

Thanks


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in the process of putting on a 10" fanin a housing around I/C allready made one up for a friend using a 7" and wired it so I can turn it on and off between runs.put switch next to steering column so red light swith wont be seen while driving.fan ran very well at milan dragway.working on I/C temp gauge to get actual readings

 

Looking down about 10 posts I found this info

https://www.f150online.com/forums/sh...threadid=25117

Doug