2-3 Shift Valve

This valve carries out the gear shift between 2nd and 3rd gears. When the direct clutch solenoid valve operates, the line pressure is applied to the shift valve and the valve moves to allow the line pressure to be applied to the direct clutch and thus the transmission is shifted from the 2nd to the 3rd gear. When the oil pressure to the solenoid valve is relieved, the shift valve returns by means of the spring force and the transmission is shifted to the 2nd gear.