How to check fuel pressure?

Thanks Doc I checked the pressure and it give me 28 key on only and the same on idol and when I give some gas it goes up to 35 and when I let go of the gas it goes under 28 to 26 and stays on 28 again.

Well it stalls when driving to the point that it turns off hesitate to turn back on and when u give it gas. I have replace almost everything except the EGR changed the TPS and the IACV. The air flow master changed the fuel filter the plugs, wiring, the hole disturbing system and still no fix.

When I turn my key on I hear a hum sound coming from the gas tank. My truck used to start but it wouldnt until the sound stopped and now it wont start at all.

No engine light no code took it Ford and couldn't find anything gave it a body throttle cleaning but no luck. Let me go back to say that I had the head gasket replaced due to white smoke and from there it began check compression good. I can't remember what else.

Thanks Doc cleaned the EGR the pintel was stuck. It's still doing it do I need to run it around so that it gets stable. I will run it today see what it will do

Ok did some driving and runs a little better but not quit. It stall when coming to a stop or turn on a corner. Hesitates a little when taking off but stables when I floor it.