Dave H M wrote:
Pat
I took my filler neck out and the neighbor welded a tubing into it for a fuel hose.
I pump from the aux straight into the filler neck and have the aux tank vented to the atmosphere.
This on a 2012 F250 and nary a problem has arisen.
I also have an electrical shut off valve since I had problems with the fuel siphoning thru the fuel p0ump on its own.
I can understand both a fuel/vent line running from the aux tank to the filler neck to make a closed loop system, but your second sentence was throwing me.
I like your set up.
Thanks for the help.
Pat