Forum Discussion
bbaker2001
Jun 25, 2016Explorer
As for the fan - it is really easy to install a 30 amp "Fog lamp relay" from your local auto parts store, and energize it with a switch in the cab of the truck when you see a steep hill coming up (on a hot day). Then run a #10 wire from the battery to a 20 - 30 amp fuse, to this new relay, to the fan input 12 volt power. When you turn on the switch, it will bring on the high speed fan.
do we disconnect the other power wire from the fan ??
do we disconnect the other power wire from the fan ??
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