The valve body in the Ford Focus 2 automatic transmission is an electromechanical device that controls the flow of fluid under pressure inside the gearbox. It consists of ??:
* Housings: The main part of the valve body that houses fluid passages, solenoid valves and other components.
* Solenoid valves: Electromechanical devices that open and close fluid passages to control flow and pressure.
* Ball valves: Mechanical valves that block fluid flow when the solenoid valves are closed.
* Pressure and Temperature Sensors: Sensors that monitor fluid pressure and temperature, providing information to the Transmission Control Module (TCM).
* Springs and gaskets: ensure tightness and smooth operation of valve body components.
The main function of the hydraulic unit is:
* Controls gear shifting by varying the flow of pressurized fluid to various clutch packs and brake bands.
* Regulating fluid pressure to ensure smooth shifts, adjusting torque converter lock-up and transmission cooling.
*Providing protection from damage by monitoring fluid pressure and temperature and triggering an emergency mode when problems occur.