Forum Discussion
BurbMan
Apr 15, 2015Explorer II
OK, thanks for that, I see what you are talking about now. The black wire runs the hyd pump all the time, and the blue from the brake controller activates the solenoid that sends pressure to the wheel cylinders as needed. Agreed you wouldn't want to rely on your battery to keep the pump running if it draws more amps than your truck is putting in there..
When you say the circuit in the truck is fused at 20, is that what the owners manual calls for or is that the fuse that's in there now? Most are fused at 30 or 40 from the factory, so is it possible a previous owner replaced with a smaller fuse than called for?
Maybe post over in Tow Vehicles and ask some owners of same year 350's to check their fuse sizes?
Assuming fuse size really is 20, then I would run a separate #10 wire off the truck battery, fuse it at 30 with an inline fuse under the hood, and connect it into the 7 pin connector at the back of the truck in place of the factory wire.
When you say the circuit in the truck is fused at 20, is that what the owners manual calls for or is that the fuse that's in there now? Most are fused at 30 or 40 from the factory, so is it possible a previous owner replaced with a smaller fuse than called for?
Maybe post over in Tow Vehicles and ask some owners of same year 350's to check their fuse sizes?
Assuming fuse size really is 20, then I would run a separate #10 wire off the truck battery, fuse it at 30 with an inline fuse under the hood, and connect it into the 7 pin connector at the back of the truck in place of the factory wire.
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