1999 Ford Expedition ran on only a few cylinders, it stalle

How do I identify the "schrader valve"?

Joe,

Thanks very much for your response.

The video starts with music as it opens.

As soon as the man starts to talk the SOUND IS GONE.

I released the Schrader Valve. At first some gas got on the rag; NO REAL PRESSURE.

It didn't start. I released more, then some air; but still NO REAL PRESSURE.

Now I want to locate the Fuel Filter. Moving down the line & hoping for the cheaper item over the more expensive fuel pump replacement.

I think a Fuel Injected system requires a higher pressure than a carburated system.

Where would I find the Fuel Filter on the 5.4 V8 in my 99 Expedition?

Thanks,
Del