As the title states, after changing my fuel filters, my fuel pressure gauge reads 0psi. Prior to changing fuel filters, truck ran fine and fuel pressurer at secondary housing was 55psi ish.

Fuel filters are Racor, I've tried removing and retightening several times..gaskets are on.

I've tried cracking the secondary top reservoir and cycling the key many times....

hooked up a clear line to the secondary housing and cycled the key probably 30 times until I hear the pump cut off...each time there are what seems to be way to many air bubbles continuously coming out.

Do I have an air leak somewhere or is the pump gone bad???

Thank you!!!

 

A lot of guys do have trouble with the frame rail filter and cap, specially the latest version of that filter. If you are 100% sure the cap and o-ring are all seated correctly then you might want to check the cap itself and see if it isn't cracked?

I know that on mine when I'm installing the cap I reach a point where it feels tighter and tighter like I'm almost home, then it gets past that point and allows me a few more normal turns until it snugs right up.

 

Thanks Piolet...I tighten the mess out of it...but still 0psi with air in fuel...
I wondering if a bad HFCM will show air in the fuel?

Maybe one of the fuel lines have worked their way loose.