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Q:

When I push the break air blows in my power steering pump. Is this normal, on 1990 Chevrolet 3500 Pickup

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should I replace my hydro booster. And how do I bleed my breaks. Is there some trick I am missing. The breaks just won't bleed is it normal for air to blow bubbles into my power steering pump when I push break peadal to the floor.
(1) Answer
(1) Comments
the pump runs the hydro vac system. you will see movement of the fluid when you apply the brakes.
as far as bleeding, the pump has no effect on the brake bleeding. the master should have been bench bled first.\, then you would have sufficient pressure to bleed the lines.

Roy