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How Your Car’s Cooling System Works

Your car’s cooling system is responsible for keeping the engine at a safe operating temperature. The system does this by circulating coolant through the engine where it absorbs heat. The hot coolant is then transported to the radiator where it is cooled off before being circulated back through the engine again.

The key components of your cooling system include the following:

  • Radiator: The radiator is a type of heat exchanger that contains metal fins that help increase the surface area for cooling. The hot coolant from the engine is pumped into the radiator where it flows through the thin metal fins. As the coolant flows through the radiator, heat is transferred from the coolant to the finned metal surface and then dissipated into the air passing through the radiator.
  • Radiator cap: The radiator cap is a pressure-release valve that helps maintain proper coolant pressure. It also allows excess heat to escape from the system when necessary.
  • Thermostat: The thermostat is a temperature-control valve that regulates the flow of coolant through the engine. When the engine is cold, the thermostat blocks coolant flow until the engine reaches operating temperature. Once the engine has warmed up, the thermostat opens up to allow coolant to flow and keep the engine at a consistent temperature.
  • Water pump: The water pump circulates coolant through your car’s cooling system. It’s usually driven by a belt connected to your car’s crankshaft.
  • Coolant: Coolant is a mixture of water and antifreeze that helps remove heat from your engine and prevents it from overheating.

The cooling system in your car is designed to keep your engine running at a safe temperature by circulating coolant through it. Coolant absorbs heat from the engine, which is then carried to the radiator where it dissipates into the air passing through metal fins. Your car’s cooling system consists of several key components, including a radiator, radiator cap, thermostat, water pump, and coolant mixture of water and antifreeze. By understanding how each component works together, you can better maintain your car’s cooling system and prevent your engine from overheating.

Photo by thitimon toyai from Getty Images via Canva Pro
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