How are automatic transmissions cooled?

In almost all vehicles with an automatic transmission there is a transmission cooler placed inside the radiator. Most standard transmissions do not make as much heat and therefore do not have a cooler. … This way the transmission is being cooled by two different coolers; one with antifreeze and on through air flow.

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.

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.

Do transmission coolers use coolant?

Transmission coolers do not attach to the radiator. They attach in-line with the transmission fluid return line. It is common for an OEM transmission cooler to be built into the radiator tank to be cooled by the coolant in the radiator.

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Where are transmission cooler lines?

Remove the two transmission cooler lines from the bottom of the radiator. These two lines can be accessed either from underneath the hood or underneath the vehicle. Use the flare nut wrench to remove the lines in the same manner used to remove the lines from the transmission.

Do you need to cool a manual transmission?

Transmissions work best when they can stay cool. (“Cool”, not cold. In winter, transmissions can take time to warm up.) But the engine block gets hot and this can heat the transmission.

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 over cool a transmission?

Heat is a huge cause of transmission failures but running too cool is bad also. Just as an engine has to run hot enough the trans has to run hot enough to get rid of any condensation that builds up inside and to keep the viscosity at the correct level for best operation.

Can I use rubber hose for transmission cooling lines?

You can use rubber hose, but make sure it’s transmission cooler line rated. The pressure is quite low (12-15 psi). Double clamp it or use FI type clamps instead of the worm-drive style.

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 .

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How do I keep my transmission cool while towing?

Adding a simple auxiliary cooler inline with the factory unit can nearly double the life of transmission fluid, keeping your gearbox happy and healthy for a long time. Also helpful are aftermarket aluminum pans. Their added fluid capacity and finned heat-sink design provide additional cooling as well.

Why do CVT transmissions overheat?

#2: Overheating CVT

The belt-driven CVT transmission is cooled by transmission fluid. If there’s been a fluid leak, a glitch in the computer or some other problem, the transmission could begin to overheat. … You may be low on transmission fluid, or the fluid you already have may need to be exchanged for fresh fluid.

Is a CVT cooler worth it?

Intercooler would help a lot in hot climates, but definitely go for the cvt cooler it is totally worth it. Do you notice a change in warm up time with the the cooler upgrades? 85% of the time I have the time to let the car warm up from cold but some days I’m in a rush and gotta blitz real quick.