Your Engine's Cooling System

The engine cooling system affects a vehicle's overall dependability and engine longevity. The key parts of the cooling system remove heat from the engine and automatic transmission and dissipate heat to the air outside. The water pump circulates coolant through the engine. The coolant absorbs heat and returns it to the radiator where heat is dissipated. The thermostat regulates the coolant temperature to keep it consistent for efficient engine operation.

A major factor that affects the replacement of cooling system parts is the frequency of regular maintenance. Coolant should be changed annually on most vehicles, although motorists should consult their owner's manual. A coolant flush and fill is basic to cooling system maintenance, helping the engine run cooler and removing sediment that could damage other cooling system parts. www.johnsautocare.net

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Autos & Vehicles

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• boulder auto repair
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