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Transmission Solenoid Valve

Model: Ford Focus MK 2, Focus 2 - Years 2004-2011
Part: Engine

A transmission solenoid is an electromechanical valve that controls the flow of transmission fluid in an automatic transmission. Transmission solenoids are powered by voltage or current. The solenoid body is typically cylindrical, made of steel with a metal coating, and is hollow inside. The solenoid is wound with enamelled wire around a conductive ferromagnetic material such as steel or iron. The coil and core take the form of a hollow cylinder inside which resides a piston. To repair it, you need to know its composition. A solenoid valve, such as a transmission solenoid, generally has nine parts: the valve body, an inlet port, an outlet port, the coil body, the winding coil, wires, a plunger or piston, a spring, and an orifice.

Updated on 11 February 2026 by ScegliAuto

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