Power Brake Units May Leak Fluid From Hydro-Boost Uniton Chevrolet 1500 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.

RepairPal Verified
Average mileage : 165,000 (165,000–165,000)
10 Years Affected: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999
13 people reported this problem
1 person shared problem details
not fixed yet. replaced pump, keeper and belt.
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