Car Problem Reports

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

 
GMC 3500 Pickup Problem
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Model Years Affected: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000

Average Mileage: 179,333 mi (125,000 mi - 278,000 mi)

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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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