96 7.3 losing prime

[Vidpro666]

Truck runs great until it sits all day or over night. Is there a check valve in the fuel bowl? I have replaced the feed and return lines even the ones on the engine. It doesn't seem to be leaking anywhere it just drains the bowl any help or thoughts would be great thanks.

[NoRalPh]

Could it be draining to the tube on the pass side of the motor (over the top of the ft tire, against the motor) that's the "dump" for the water drain valve?

[Vidpro666]

no its not running out the drain you cant see it leaking anywhere. It runs great once you bleed it out.

[Vidpro666]

anybody think of anything that would cause it to bleed off

[jesilvas]

How is your fuel pressure regulator? Ever rebuilt it?

[STROKED_NY_023]

Originally Posted by jesilvas

How is your fuel pressure regulator? Ever rebuilt it?

Also when you had the lines off did you happen to clean the fpr screen?? There is a ball check behind the screen that could fall out which would cause this issue...

Sent from my Galaxy S2 while my wife is yelling at me for being on my phone...

[Vidpro666]

so there is a check in the fuel bowl and no I didn't clean it.

[jesilvas]

In the fuel pressure regulator.
Fuel Pressure Regulator (FPR) Screen Writeup

[Vidpro666]

also it looks like the adrenaline pump I just put in is leaking

[Vidpro666]

what about just deleting the fuel bowl with a spin on filter and a fpr.