steering and hydroboost problems

[gd71eb]

What I got is this......
351w w/ serpentine belt
Astro hydroboost
4x4x2 steering box rebuilt 0 miles
Superduty dual return pump brand new
35in tires
All lines are brand new

What my issue is....
With the wheels off the ground and the motor off, steering is pinky easy lock to lock. With wheels up and motor on turning is the same. Driving the truck around the block feels like im running no PS. Ive turned the wheel a hundred times motor off and on both (made a hell of a mess with burps of fluid). During the bleed process no noise from pump except at drivers side turn lock, then 8t squelled
Last week I had good brakes but now when I press the pedal they are way soft and spongy. With the motor running wheels up and pedal pressed the system squeels. Driv8ng around the block brakes are almost not there.
Ideas?
Pump bad?
If so can a saginaw pump fit my bracket? Its the small cast aluminum 2 bolt to block/head bracket (not the big van bracket)
Thanks

 

[gd71eb]

I think I got the mustang pump bracket

 

[ENDLIFE]

I helped a friend with a with a similar problem, and I only knew how to remedy the situation from steering box installation directions from another Bronco site. The directions sited to cycle the steering box lock to lock with the drag link disconnected, as doing so with the drag link connected will not dislodge all the air from the system. Try this if you haven't before, and if it doesn't work you can poke me in the theoretical eye.

 

[gd71eb]

Ill give this a shot in the AM

 

[ransil]

I had similar issue , resolved when I removed the pressure line from the steering box put it in a bucket cranked the motor a few turns to bleed the fluid. put it back on refill and re-bleed the system as you did before.