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

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
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
Viewing 1 - 8 of 8 comments
fluid leaking from hydro boost unit. Replaced hydro boost.
Power steering fluid leaking from hydro booster
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
only option is to replace
leaks power steering fluid between master cylinder and booster
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"...
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..