Hydraulic Actuator Assembly
WARNING: This page is about a different car, the 1994 Mercury Tracer, 1994 Ford Probe, and 1994 Ford Escort. However, it is still accessible from the selected car via links, so may be relevant.
The hydraulic actuator assembly contains an electric motor and pump to provide pressure to hydraulic system for ABS operation, solenoid and cut-off valves to modulate brake hydraulic pressure at each wheel, a pressure switch, 2 buffer chambers and 2 damper chambers. The internal electric pump supplies pressure for ABS system to reapply or increase hydraulic pressure as required for maximum braking without wheel lock-up. See Fig 1 .