Power Brake Units May Leak Fluid From Hydro-Boost Unit on Chevrolet 3500 Pickup

Power brake systems using "hydro-boost" may leak power steering fluid from the hydro-boost unit located behind the brake master cylinder. Replacement of the hydro-boost unit is the common repair to correct this concern.

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Average mileage: 165,859 (65,000–240,567)
11 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2000
28 people reported this problem
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Viewing 1 - 8 of 8 problem details
1992 Chevrolet 3500 Pickup 169,783 mi,
fluid leaking from hydro boost unit. Replaced hydro boost.
1996 Chevrolet 3500 Pickup 125,000 mi,
Power steering fluid leaking from hydro booster
2000 Chevrolet 3500 Pickup 65,000 mi,
I am amazed, if I built shitty houses for ten years, I would be sued, and the courts would take everything I have, but big business, just smiles and buys their way to avoid justice. It's a shame we have become the of Rome , before it fell,we have allowed the middle class to become a thing of the past
1990 Chevrolet 3500 Pickup 220,000 mi,
only option is to replace
1995 Chevrolet 3500 Pickup 200,000 mi,
leaks power steering fluid between master cylinder and booster
1991 Chevrolet 3500 Pickup 240,567 mi,
Loss of power when I put it in second to third gear
Replace hydro-boost system due to power steering fluid leak.When it was replace steering wheel is tight. We bleed(remove the air) the steering fluid, but still steering wheel is still tight.We bleed the brakes fluid, but still steering wheel still tight. We nee your help. My e-mail aagt@hawaii.rr.com.. my name "Willy"...
2000 Chevrolet 3500 Pickup 156,100 mi,
Replace old hydro-boost system due to power steering fluid leak. ]Steering wheel is tight,so we bleed(remove the air) on the power steering fluid,but steering wheel still tight. We bleed(remove the air)on all the brake(front and back) but the steerin wheel is still tight. My mechanic does not know the problem anyone can help us? my e-mail: aagt@hawaii.rr.com, my name is Willy... Thank you..