It’s designed with hollow tubes or channels that connect the inlet and outlet tank. Through these channels, liquid coolant flows through to the engine, where it then becomes warm. When it passes through the radiator, the radiator makes it cool again through the air that passes through it – and so the cycle continues.
This cyclical process allows the engine to operate smoothly. Unfortunately, the radiator is also one of the most fragile components underneath a car’s hood. Its metal is thin and, due to the coolant that passes through it, the metal is susceptible to decay and corrosion. This is why it’s important to keep check of when your radiator is in prime condition.