Ford Repair: Fuel Pump, f 150 truck, fuel rail

Question
What is the right pressure on the fuel pump?
I have a F-150 truck Model 1998 4.6L 2WD and it shakes a lot when I try to accelerate in the streets and i checked the pressure on the fuel pump and I don´t know exactly on what pressure it should be on.

Answer
Conrado-

  Pressure at the fuel rail should be in the low to mid 30s range as far as psi goes.  Much lower or higher and you're looking at problems (although if it's higher I wouldn't expect the fuel pump to be the issue).  Hope this helps.

Steve