So over the weekend, I bought two F-250 7.3. They both have very little brakes, the pedal goes almost to the floor and only have about two inches of "braking", they also have little to no power steering. I'm thinking its probably the hydro boosts on both of them are bad, but I want to make sure this is the problem before breaking open the system. One of them, when I first was driving it, brakes felt fine at first, but when I came around a curve and hit the brakes, I heard a kinda "pffff" noise and then they just went to the floor. They have been sitting for almost a year, so could a fluid flush help?? Any help on this would be greatly appreciated!