Car Problem Reports

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

Chevrolet 3500 Pickup Problem
21 Reports
Me Too

Model Years Affected: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000

Average Mileage: 148,925 mi (65,000 mi - 240,567 mi)


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.

  • Visitor, , 169,783 mi

    fluid leaking from hydro boost unit. Replaced hydro boost.

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  • Visitor, , 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

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  • Visitor, , 240,567 mi

    Loss of power when I put it in second to third gear

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  •  Rookie

    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 my name "Willy"...

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  • Visitor, , 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:, my name is Willy... Thank you..

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