Why do automatic transmissions need coolers?

Do I Need a Transmission Cooler? Transmission coolers help to protect your transmission when you turn up the heat. Transmission Coolers help transmissions deal with the added stress and heat caused by towing boats, trailers and other heavy objects.

What are the benefits of a transmission cooler?

Benefits of Transmission Coolers

The primary purpose of a transmission cooler is to keep the hydraulic fluid inside the transmission cool. The optimal temperature for this fluid and your transmission is 170-degrees Fahrenheit or lower.

Should you add a transmission cooler?

A transmission cooler will just help to prolong the life of the transmission by keeping the fluid cooler. Transmission fluid cannot be cooled too much, so the addition of a cooler is a good idea, especially if you are towing.

Why do automatic transmissions get hot?

Reasons for overheating include low fluid levels, leaks, burned, old or dirty fluid, or problems with the solenoid. You can ensure the long life and efficient performance of your transmission – and your car – by doing some things to make sure it does not run too hot.

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Does transmission cooler increase performance?

Keeping Your Transmission Cool for Best Performance

A transmission cooler helps the transmission stay cool, even when working harder than normal, which in turn lets you get the best performance and long life out of it.

Can you tow without a transmission cooler?

If you are towing 3500 pounds or under, you’ll be fine without the tranny cooler.

Does every car have a transmission cooler?

While all automatic transmission equipped vehicles have a transmission cooler in their radiator, this might sometimes not be enough to properly cool your transmission fluid.

Can you put a transmission cooler on a CVT transmission?

If the vehicle is still under warranty, be sure that eliminating the O.E. cooler will not affect the warranty. … Many vehicles now feature CVT transmissions and use a liquid-to-liquid cooler for the transmission.

Can you use a radiator as a transmission cooler?

In terms of transmission operating temperatures keeping the fluid 200 degrees or less is preferred for long life — for every 20-degree increase in temperature above that, the life of the fluid is cut in half. … When it comes to cooling a transmission we never use radiators with built-in transmission coolers.

How do I cool down my automatic transmission?

Allowing the car to idle in neutral, while sitting at red lights, in congested traffic or at rail road tracks, reduces the strain on the transmission, allowing the transmission to cool.

Does ATF expand when hot?

The reason for checking when both hot and cold is transmission fluid expands as it is heated. … So, when checking if it’s hot, you can’t do that check if you just drove 50 miles across the desert because the fluid will have expanded. Transmission fluid expands and keeps expanding the hotter it gets.

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Why does my transmission slip when it gets hot?

Low Level Of Transmission Fluid

When the fluid level is low, the transmission does not get enough hydraulic pressure to engage gears and friction between components will cause overheating. Low fluid is the reason for transmission slip when hot and the condition becomes worse when the transmission gets hotter.

Can a transmission cooler be too big?

Too big could be a concern if mounted in the front of the rad creating a loss of air flow to keep the engine cooled . Years ago , GM released a TSB about overcooling the transmission in cold climates .

Should transmission cooler be before or after radiator?

Should the cooler be installed before or after the radiator? Answer: We recommend installing the auxiliary cooler after the radiator to return the coolest fluid directly to the transmission.