How does an automatic transmission cooler work?

How Does a Transmission Cooler Work? Fluid heated by the transmission, engine, or power steering pump flows to the cooler. Air flowing over the fins of the cooler carries away heat and cools the fluid flowing within the fins. The cooled fluid is routed back through the transmission via the return line.

Does an automatic transmission need a cooler?

Our concerns about overheating our truck’s transmission have been eliminated, and that’s really cool. 01 Auxiliary transmission coolers come in a variety of sizes, styles and capabilities. Any truck equipped with an automatic should have one — never rely on just the integral cooler in the radiator.

What fluid runs through transmission cooler?

Transmission oil can reach extremely high temperatures during operation, and this fluid can be cooled down with an external oil radiator. Some vehicles manufactured after 1975 will have transmission coolers built into the car’s radiator, as will most trucks designed for towing.

Is a transmission cooler a good idea?

As long as it is properly installed, a transmission cooler will not affect a factory transmission. It is a flow-through device and does not affect any internal components of the transmission. … Transmission fluid cannot be cooled too much, so the addition of a cooler is a good idea, especially if you are towing.

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How does transmission fluid get cooled?

Automatic transmissions produce a great amount of heat and must be continually cooled. … The fluid is cooled inside the radiator in a separate heat exchanger called a cooler tube which is made of brass. The transmission fluid circulates through it, is cooled by the engine coolant and then sent back to the transmission.

How do I know if I need a transmission cooler?

Your vehicle’s gross vehicle weight rating (GVWR) is key to determining what kind of transmission cooler you need. As is the type of terrain over which you usually drive. Hilly and rocky terrain might require more of a heavy-duty transmission cooler.

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.

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.

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 .

Are transmission coolers directional?

Can Transmission Fluid Flow Through Either Direction on a Transmission Cooler. Helpful Expert Reply: … The cooler can have fluid flow in either direction through it.

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Does transmission cooler use antifreeze?

The cooler for the automatic transmissions are placed inside the radiator, the reason behind this is the antifreeze provides the perfect environment. It warms the transmission up with it’s cold and keeps it from getting too hot in extreme heat.

Is it safe to bypass radiator transmission cooler?

Bypassing your radiator transmission cooler would likely cause the fluid in your transmission to over heat causing premature transmission failure.