Impreza Wagon FWD F4-1820cc 1.8L SOHC (1995)
![background image](/subaru/impreza_wagon_fwd/f4-1820cc_1.8l_sohc/Page-1669002.png)
CHECK VALVE AND HOSE
-
A check valve is provided at an intermediate point of the hose which connects the actuator and intake manifold.
-
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)