This is not a ranger far from it but this being a site with some ford tech's on it maybe they could help... I have a 1999 7.3 powerstroke after making a sharp turn i lost power steering and brakes this must be something with the hydro boost but im not sure any ideas if you think you know what it could be would be great! however at about 2000rpm everything works right good power steering and brakes the power steering pump runs everything (hydro boost) Looked all around no leaks was dark out but with the flash light no pinches or ruptures The fluid is not circulating at a idle in the power steering reservoir.