I have to hook my primer/ lift pump output strainght into the IP input to get the overflow valve to open up. It primed it perfect. No leaks no air anywhere else when it’s hooked up correctly, but will only prime and run like this. I just loop the in and out of the filter housing. If i hook it up correctly all pressure bleeds off through return line.
This is a swap into an ‘88 4runner. But as for as I’ve been able to see i do have itbdouted correctly. Will add pics in a bit.
What keeps the pressure from just dumping into the return?
Again, when main filter is integrated “correctly”, pressure bleeds off to return and it will not bleed or run