1995 F 150 Fuel System Problems?

I have a problem with my fuel system in my 1995 F-150. I normally turn my key and hear my pump ramp up and it does not matter which tank that I am on it always sounds like it comes from the same place.

I am confused they (Ford House) say that it has two pumps well how do you find out witch one is bad? I run the switch valve and it makes no diferants. I do not want to pay $400 for a pump and they are two differant pumps.

Could someone help me? This all happend on my birthday. cool right?

Is there anyone out there reading these? Can someone please help.

Exactly what do you need? Your question is very vague. You will have a pump in the tank, and you will have one on the rail.

I have found the problem, it was the hardest trouble shoot of my life( and I rebuild and repair planes) The computer board burned in half on pin 28 opening the drop curcit.