Hey guys new to the page but have pulled info off it before for little things here and there.. ill get to the point, my truck looses about 7-10 psi while pulling my 40’ trailer only on a hard pull up a hill. Thing is that it will drop the psi but after a little bit it comes back. I run about 25-28 while pulling and it will all of a sudden drop to 18-20 then come back and go away periodically while pulling the hill.. running a mechanical boost gauge of that helps at all... thanks