a valve is provided that combines the features of a solenoid valve and a check valve into a singel combination solenoid check valve . the valve utilizes a first check valve to allow fluid to flow from the outlet passageway of the valve to a chamber above the piston to ensure that the valve remains closed when the outlet pressure in the valve is greater than the inlet pressure . the valve also utilizes a second check valve that closes a bleed aperture through the piston when the pressure in the chamber above the piston is greater than the inlet pressure .