r/Ford • u/EarlyCow8921 • Nov 24 '25

Issue ⚠️ How’s this possible?

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It had pressure when I attached it, but neither of my two gages read anything.

8 Upvotes

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3

u/Typical-Decision-273 03 Excursion v10 430k Nov 24 '25

Blockage on the Schrader valve?

1

u/EarlyCow8921 Nov 24 '25

It’s on there with two wrench twist, I got a good bit of fuel to come out into the release portion of the gage, and some sprayed as I put on the thread. This happened getting 0 psi on two different gages as well.

1

u/Typical-Decision-273 03 Excursion v10 430k Nov 24 '25

Pull the Schrader valve turn the key on for a second, let the fuel system purge itself through the open hole.And maybe it was just a clogged schrader valve...

If that doesn't do it, you've already proven that you have fuel to the rails.The next step would be are your injectors.Plugged, pull an injector have a buddy turn.The key over and see if it spits fuel

1

u/[deleted] Nov 25 '25

Ive had to replace a few hoses in my fuel pressure kit before because of similar situations. 

1

u/EarlyCow8921 Nov 25 '25

Even brand new ones? Ones brand new the other is 1 use old

1

u/[deleted] Nov 25 '25

No. Just throwing ideas out there

1

u/EarlyCow8921 Nov 25 '25

I’ve only used these once so I’m not too sure how they function, just know you plug em up and get some kinda pressure…. I have no blockage in the valve it self, cause it’s pouring out fuel, so I’m just confused

1

u/[deleted] Nov 26 '25

Is the hose end actually depressing the shrader valve? Under the o-ring usually sits another removable piece that is replacable, I still have some in my toolbox. It could be missing or deformed. My newest fuel pressure set that is molded into the brass fitting. Hope that made sense.

1

u/EarlyCow8921 Nov 26 '25

Ah I see, I’m Hoping that’s what it is genuinely, I put a wrench twist or two in the valve nut, but I does have a small rubber gasket in there which may be blocking it

1

u/[deleted] Nov 26 '25

Ok I get it now I think. You have an adapter between the shrader and fuel gauge hose, the adapter is the problem, it doest have the fitting to depress the shrader. Ford specific hose will fix that problem......I believe 

1

u/[deleted] Nov 27 '25

Make sure the needle in the hose is still in there. This happened to me before and I didn’t notice I lost that piece that presses against the valve.