subaru Workshop Repair Guides

Subaru Workshop Service and Repair Manuals

Relays and Modules - Cruise Control > < Cruise Control Vacuum Solenoid|Description and Operation
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CHECK VALVE AND HOSE

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A check valve is provided at an intermediate point of the hose which connects the actuator and intake manifold.

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When the negative pressure of the intake manifold enters room A and opens the vacuum valve of the actuator and provides a clear passage
between room B and the actuator, the seal moves. Then the passage between rooms A and B becomes clear, allowing the negative pressure to enter
the actuator.

Valve opening pressure: 
-1.3 ± 0.7 kPa (-10 ± 5 mmHg, -0.39 ± 0.20 inHg)

Relays and Modules - Cruise Control > < Cruise Control Vacuum Solenoid|Description and Operation