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What circulates coolant through the engine?

The water pump is responsible for circulating coolant through the engine.

Here's how it works:

* The water pump is driven by the engine's crankshaft. This means that whenever the engine is running, the water pump is also turning.

* The water pump has an impeller, which is a rotating blade. The impeller spins within a housing, creating a pressure difference that forces the coolant to move through the engine's cooling system.

* Coolant flows through a network of hoses and passages. These passages are strategically designed to carry the coolant through the engine block, cylinder head, and radiator.

* As the coolant circulates, it absorbs heat from the engine. This heat is then transferred to the radiator, where it is dissipated into the air.

The water pump is a crucial component of the engine's cooling system. Without it, the engine would overheat and potentially be damaged.