What exactly does a radiator and antifreeze do?

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So I drive a pretty old SUV and it’s had a radiator leak for awhile. I can deduce that anytime I start to run low on antifreeze it begins to overheat. But I don’t exactly understand the causation behind it. Clearly, no antifreeze—overheat. But how exactly does that happen?

Ps. I am not mechanically inclined. I never had anyone teach me about any of this so I’m learning on my own. My mechanics are really helpful! But I don’t want to bother them as they’re super busy. Thank you all!

In: Engineering

5 Answers

Anonymous 0 Comments

Your engine has a cooling system. It circulates coolant (water or antifreeze) around the engine to prevent overheating. The radiator is the part that takes hot coolant from the engine, and cools it down so it can be sent back to move more heat.

When the coolant leaks out the system starts to run low, which means it can’t cool down the engine so the engine overheats.

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