Not all cars do (eg electric cars). However if the car is powered by a combustion engine then the engine produces heat and this heat must be dissipated or the engine will overheat and cease. This is why combustion engine powered vehicles need a cooling system/radiator.
It cools down the lubricant. and lubricates the engine piston to stop it from snapping.
== == The car is about 16 years old, it needs a complete rad and heater core flush, to get the junk out of it, and make the system operate better, and more effectively. A professional radiator shop can do that for you.
Not all cars do (eg electric cars). However if the car is powered by a combustion engine then the engine produces heat and this heat must be dissipated or the engine will overheat and cease. This is why combustion engine powered vehicles need a cooling system/radiator.
The process of the engine creates huge amounts of heat. Water is past through the engine block (that is where the cylinders are ) where it collects heat from the case body of the engine block and its taken to the radiator where air is passed through the radiator cooling the water. The cycle continues. If the water did not circulate then the engine would expand considerably, the cylinders will also then expand as would the moving parts to the point where the friction would cause the engine to cease up.
If your radiator isnt leaking and car is having a over heating problem and coolant spewing out. Chances are your thermostat needs replaced. possible the radiator needs to be flushed. But more likley its thermostat
A radiator is a part of a typical cooling system that transfers heat away from the engine.
It cools down the lubricant. and lubricates the engine piston to stop it from snapping.
Whenever it needs it.
It sure is. Leaking radiator fluid only causes the coolant system to de-pressurize and not effectively cooling all the internal working engine parts. As to repair costs, one needs to evaluate the cost of repairs vs replacing the radiator. If the car is older, then replacing the radiator might be the way to go.
Yes, a car needs a radiator to run because it stores the coolant for the engine and dispenses it when needed. So, if it didn't have one the car would overheat and not be able to move :)
The radiator will need to be replaced. Sometimes, it may seem that the radiator itself is leaking but it could be the radiator "hose" that is leaking. In this case, the radiator hose needs to be replaced and clamped tightly.
You need to go get your car looked at by an auto repairman if you have a crack in your auto radiator. They can tell you if it needs replaced or just fixed.