Technical Valve Body

The Valve Body is an often source of troubles for transmission repair specialists - here our Team work to provide reliable tips and techniques on this complex unit.



Automatic transmissions function with the help of hydraulic pressure to implement the process of gear shifting itself, and utilize valve body solenoids to handle the pressure of the ATF to specify the shifting points. There are many solenoids responsible for different gear shifting operations, and in this article we will have a closer look at downshifting solenoids.

This part 2 is a conclusion to our 2-part insight into the Transmission Control Module / Mechatronics Units testing.

The Go4Trans Team is happy to present to you part 1 of the 2-part research over the testing methods of TCMs / mechatronics units.