how would i "know" my fuel pump is bad?

[Soot_Life]

So today I got a new pump and began to tear my valley apart. Unfortunately. I was two tools short... an extension for bowl & I'm guessing a 1-1/8" wrench to get bolt attached to banjo loose..

Reason I'm changing is I'm getting no fuel to the bowl and pump has never been replaced. With filter out and diesel poured in bowl the hole on the top towards firewall bubbles alot ..

Once I get pump out is there a way I can test the old pump. Be fore essentially blow a Benjamin putting the new one in?

[sgt dave]

You could test it while it's still in the truck with a gauge hooked up to the Schraeder valve . A good pump should be between 50&60 psi at idle

[sgt dave]

Banjo bolt is 1 1/4"

[Soot_Life]

Alright, thanks a ton. Ill get to that after work tommorow.

[Soot_Life]

Finally got to it. Turned out the old pump was the culprit of my fuel leak. Put new hoses in. And cleaned out a pound of mud in the valley .. the banjo bolt wasn't to hard to get out but it was by far the hardest part trying to get back on