A cooling circuit is a vehicle’s mechanism designed to keep all thermally-stressed areas of the engine from being damaged. The internal combustion necessary for powering vehicles produces substantial heat, and the coolant circulating in the cooling circuit dissipates this heat to ensure a constant engine temperature level in the engine.
The main function of a cooling circuit is to ensure that the engine runs at its optimal operating temperature. While extreme high temperatures can cause overheating, seize, and cracked engine blocks, a cold engine can result in worn out components, more pollutant emitted and a less efficient engine.
The cooling circuit’s main core component is the water pump; in charge of activating the circulation of the coolant through the entire circuit. Other key components include the radiator; in charge of transferring the heat from the fluid inside to the air outside, and the thermostat; which ensures that the liquid is at the right temperature by blocking or opening the passage.
Together with the previously mentioned elements, other components such as freeze plugs, cooling fans, head gaskets, hoses and an overflow tank amongst many others, all add up to keeping the temperature within standards of safety and efficiently.
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