T he transmission valve body is among the most important components of your vehicle's transmission system, yet it often goes unnoticed until something goes wrong. As a key player in the ...

As a key player in the functionality of automatic transmission systems—alongside the planetary gears, clutches, and torque converter— the valve body functions as the control center of the gearbox.

If a manual transmission, the driver operates the gear lever using the clutch control/pedal. Otherwise, this is performed automatically. When engaged, a clutch or gear lever maneuvers “collar” plates ...

Factory Wonders. How Manual Transmission Works: Understanding the Key Components. Posted: June 9, 2025 | Last updated: July 11, 2025. In this detailed video, we take an in-depth look at the manual ...

To convince the transmission control module that a working automatic was still installed and clear the fourteen-odd diagnostic codes, [Dean] put together a block of eight common automotive relays.