What is a transmission valve body?
The valve body acts as the control center of the automatic transmission. When a shift is needed, valves open and close to direct transmission fluid to the appropriate area to make the gear change occur. Transmission fluid, unlike motor oil, is more than just a lubricating fluid; it’s a hydraulic fluid.
How do I know if my TCM is bad?
Signs of a Bad Transmission Control Module
- Unpredictable shifting.
- Trouble shifting into higher gear.
- Trouble downshifting.
- Getting stuck in the same gear.
- Poor fuel economy.
- Check engine light comes on.
Are there valves in a transmission?
All automatic transmissions have a valve body that acts as the brain of the transmission. Within, there are dozens of passages and channels that direct the flow of hydraulic fluid to different parts of the transmission. The valve body has a 1-2 shift valve that is responsible for shifting up from first to second gear.
What is a valve body in transmission?
Valve Bodies. The valve body of the transmission, or control valve, is the central nerve system that tells the transmission what to do, at what time. It contains springs, valves, and many fluid passages that are critical to the proper operation of the transmission.
What is an automatic transmission valve body?
A transmission valve body is a major component of an automatic transmission . It’s essentially a maze-like control center made up of valves, passageways, and solenoids that diverts transmission fluid to where it’s needed for gear changes.
What is valve body assembly?
A valve assembly is a complete valve mechanism including all peripheral devices directly related to the installation and functioning of the valve. The term may be applied to all valve types, including gas or fluid flow control valves and internal combustion engine valves.
What is a valve body kit?
A valve body kit contains components to repair or modify a valve body but is not the complete valve body. A valve body is the complete assembly to include components that may be in a valve body kit. Premium Valve Bodies carry a limited lifetime warranty from ValveBody Xpress.