A solenoid is actually a linear electrical actuator. When is becoming energised (equipped with electric powered Electrical power) it pushes or pulls a rod which happens to be connected to the hydraulic valve. You can find differing types of solenoid used for torque converter clutch Handle, nevertheless the basic principle https://torqueconverterclutch76520.blogsumer.com/33196773/torque-converter-clutch-an-overview