Posted 7/21/2021 21:56 (#9122507 - in reply to #9122500) Subject: RE: 7.3 diesel Ford Powerstroke
Fuel pressure regulator on the side of the fuel bowl. There is a screen in one of the lines that gets plugged. Also maybe pump is weak ? Remove complete fuel bowl and clean.
My suggestion is for early years only , 99 and up is a completely different system.