The valve body assembly of 7DCT250 transmission

Automobile transmission valve bodies are generally made of aluminum alloy or steel materials, which have high strength and corrosion resistance. There are multiple valves and channels inside the valve body. The opening and closing of the valves are controlled by the hydraulic system to realize gear shifting and provide transmission ratios of different gears. The design and manufacturing requirements of the valve body are very strict, and they must ensure good sealing, flexible valve action, and good wear resistance. In addition, the internal structure of the valve body must be precise and complex to ensure the accuracy and stability of the shifting operation.

Transmission abnormalities are a common car problem that often manifests itself as difficulty shifting, automatic shifting, and a jerky feeling. The occurrence of these problems may be related to insufficient lubrication of relevant Transmission Gear and other components in the transmission, or may be related to valve body failure.

The reason for difficulty in shifting gears may be that the gears and other components in the transmission are not lubricated enough, causing them to fail to work smoothly, resulting in the car feeling like it is bowing, vibrating, or sluggish. This fault usually occurs when starting or driving, and is more obvious when the weather is cold or hot. To solve this problem, you need to change the transmission oil regularly and make sure the transmission is adequately lubricated.