What are the Parts of the Cooling System?


All Tune And Lube - Richmond VA Blog

The cooling system's sole function is to regulate the temperature at which the engine operates. If the cooling system, or any part within it, were to fail it would result in the engine overheating, which can lead to a number of major problems. Overheating can cause head gaskets to blow and even engine blocks to crack, if the issue is severe enough. The following are the main parts of the cooling system. Always pay attention to signs of cooling system failure, as described below.

Cooling Fan

The cooling fan is located at the very front of the vehicle and is designed to turn on when the coolant (we'll talk more about this in a minute) begins to get to hot. It will turn back off once the coolant has lowered in temperature.


The radiator is specially designed in order to remove the heat from the coolant by transferring it to the air blown through the radiator by the fan and incoming air from driving. Radiators are prone to leaking after years of use.

Water Pump

The water pump is what propels the coolant through the engine. A broken water pump will prevent your cooling system from operating, thus resulting in the engine overheating while driving.


The thermostat is what controls the cooling systems operation, specifically turning the fan on and off.


A series of rubber hoses connect the radiator to the engine in which the coolant flows through. These hoses can also begin to leak after many years of use.


The bread and butter of the cooling system is the coolant. This sweet smelling, bright green fluid flows through passages in the engine, attracting heat from the engine. It collects the heat and transfers it to outside air inside the radiator.

Common signs of a cooling system issue include white smoke coming from under the hood, the dashboard temp gauge rising or a visible coolant leak. If you believe your vehicle is overheating or needs cooling system repair in Richmond Glen Allen or Midlothian head to All Tune and Lube. Our full service auto repair shops can tackle any trouble your vehicle is having. Give us a call at the location nearest you to schedule auto repair near Richmond today!

All Tune And Lube - Richmond VA Blog

Written By Brian Corey

Published By MORBiZ