huh ... that is truly odd ....

is your pick up tube and feed line the same size I.D. ?

Yup

I must admit ... im at a loss :ouch:

Me as well. Im going to change fuel filter one more time to make sure I didn't pinch the o-ring and of thats not the problem im going to install a electronic pump in line to see If that will keep the prime

almost sounds like it could be a dying LP maybe ???

Im getting 25psi at idle

but if its to blame for the bleed back ... not good maybe the check valve should be in line between tank and the LP ?? :humm:.. might just work ... :c:

I would smoke test the fuel line that was just installed. Or pressurize the tank and entire fuel system and watch for leaks.

Sent from my SCH-I605 using Tapatalk 2

that's what I was thinking but I don't know how bad it would restrict flow

Got a plan. Tommorrow going to put a new filter on if nothing going to try a lift pump inline. If still nothing ill be at a loss