How do automatic transmission valve bodies work?

An automatic transmission valve body consists of a large number of hydraulic channels and passageways designed to bring highly pressurized oil to various valves. Each of those channels performs more or less the same task as a hydraulic fluid hose.

When do you know you have a bad transmission valve?

If the answer is yes to any or all of these scenarios, then chances are you have a bad transmission valve body. If you try to change gears with the shifting stick and you notice it slips regularly, then you likely have a problem with the transmission valve body.

What is the body of a transmission valve?

Not to be confused with the intake and exhaust valves in your engine, the valve body is an assembly inside an automatic or CVT transmission that routes automatic transmission fluid (ATF) throughout the transmission.

Can a transmission valve be replaced at home?

There are many tiny components inside a transmission valve body that must function exactly as designed for proper transmission operation. If you take your vehicle to a qualified transmission repair shop, there is a chance that the shop may be able to replace an individual component instead of the entire valve body.

Which is the heart of the CVT transmission?

The heart of the CVT, electro mechanical control at the transmission is the valve body.

How do automatic transmission valve bodies work?