chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Parking Brake Warning Switch > < Brake Distribution Valve & Switch|Page 4654
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Brake Fluid Pressure Sensor/Switch: Description and Operation
Proportioning Valve

Fig. 5  Gauge Hook-up For Testing Proportioning Valve (Typical)

    The proportioning valve (when used), Fig. 5, provides balanced braking action between front and rear brakes under a wide range of braking
conditions. The valve regulates the hydraulic pressure applied to the rear wheel cylinders, thus limiting rear braking action when high pressures are
required at the front brakes. In this manner, premature rear wheel skid is prevented.

Parking Brake Warning Switch > < Brake Distribution Valve & Switch|Page 4654