Well I got the pump inlet hose installed and started the car up to hear the same noise from the brakes and steering, bled the system a couple times, brought the system up to temp and let it cool off a couple times and the brakes are a lot better now. The brake peddle feels more like my Denali which has Hydro-boost brakes and its not noisy anymore but the steering is another issue.
The fluid has metal flakes in it so I started trouble shooting. With the steering wheels off the ground there are hard spots in the rack and pinion. I put the car on the lift and disconnected the tie rods and gave it another try, still have the hard spots while turning the steering wheel with the engine off. It sounds as if the fluid is going through an orifice than it quits and does it again. Iíve ordered a replacement unit so Iíll have to wait on it to take a test drive.
Right now Iíll say that the brakes are much improved but the real test will be once I have the car back on the road and take it for a test drive.
Most installation guides for the Hydro-boost say to give the system up to 500 miles to allow all the micro bubbles to escape. I noticed the accumulator acting funny until all the air was out. Whit air in the accumulator it causes the peddle to kick back when you apply the brakes. I think this is due to the accumulator trying to pressure up with brake fluid but due to the air it canít.
The accumulator pressures up when the peddle is pressed when the car is started, it diverts pressurized fluid into the accumulator and a check valve prevents it from escaping. If thereís air in it or if the check valve leaks, the peddle when pressed will travel down and than kick back once the accumulator is pressured up, then the brakes will apply. It'll give you an uneasy feeling when this happens while driving the car.
Iím going to do a good flush of the system to try and get all the metal flakes out of the steering system and hope the pump and Hydro-boost system is not damaged.