What Are the Aftereffects of Replacing a Transmission Valve Body?

[DeQuinn]

As long as the repair is carried out at an authorized 4S dealership in accordance with operational standards, there are no aftereffects from replacing the transmission valve body. Here is an introduction to the transmission valve body: 1. Generally, the valve body on a transmission is used for shifting between high and low gears. When the vehicle speed reaches a certain gear speed, the hydraulic oil pushes the valve body to automatically shift to that gear. 2. The automatic transmission valve body controls the switching of oil passages to various shift actuators (clutches and brakes) during gear shifts, thereby achieving shift control. 3. The transmission valve body is a hydraulic control unit. The sliding valves on the valve body move left and right to change the direction and pressure of the hydraulic oil, enabling the operation of clutches and brakes for different gears to achieve automatic shifting. Issues such as sticking or leakage in the valve body can lead to symptoms like shift shock, low transmission efficiency, and poor power output.