3500 4x2 Pickup V8-360 5.9L Magnum (1994)
Hydraulic Control Assembly - Antilock Brakes: Description and Operation
Hydraulic Valve
Four Wheel ABS
PURPOSE
The hydraulic valve modulates hydraulic pressure.
OPERATION
The hydraulic valve -- controlled by the electronic module -- controls fluid pressure to the rear brake units during anti-lock mode braking.
The accumulator is operated by fluid and spring pressure. The two valves are operated by electrical solenoids that are activated by the anti-lock
control module.
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During normal braking, the valve components are inactive allowing free flow of brake fluid to the rear brake units.
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In anti-lock mode, the valve will decrease, hold or increase fluid apply pressure as needed.
CONSTRUCTION
The valve contains an accumulator, an isolation valve and a dump valve.
Rear Wheel ABS
RWAL Hydraulic Valve
PURPOSE
The hydraulic valve modulates hydraulic pressure and is controlled by the electronic module. The valve controls fluid pressure to the rear brake
units during anti-lock mode braking.
OPERATION
The valve contains an accumulator, an isolation valve and a dump valve.
The accumulator is operated by fluid and spring pressure. The two valves are operated by electrical solenoids that are activated by the anti-lock
control module.
