What Do You Know About Your Vehicle's Radiator?

- Jun 05, 2019-

What Do You Know About Your Vehicle's Radiator?


A radiator is a device that exchanges heat from the engine with the outside, cooler air. The failures can be complex, but preventable with basic knowledge.

What Does a Radiator Do?

Hot coolant enters the radiator through the upper hose, then moves down small tubes internally built into a large, flat surface area. The heat from the coolant is transferred to these tubes and then onto many tiny metal vanes. This surface area is needed for the rush of cooler air drawn in by the radiator fan, or wind entering through the front grill of the vehicle.

Now in most modern cars, this front area can have a lot of components: the air conditioning has its own cooler called a condenser, and the transmission fluid might also have a cooler or even use part of the radiator. For these reasons, the front grill is designed with plenty of open space.