Blog

5 Reasons Why Your Engine’s Cooling System Might Fail

You rely on your engine’s cooling system more than you might realize. Your vehicle’s engine should never get hotter than 220 degrees Fahrenheit, and when you consider you’ve got combustion going on inside, it’s a miracle the temperature can be regulated. The cooling system regulates engine temperature, and Kauai Auto Repair, LLC, lists below five reasons why the system might fail.

Low Coolant

Pop the hood regularly and check your coolant level. Do this when the engine is cold. Check the level in the overflow container and the radiator. If anything looks low, have the cooling system tested for leaks. Low engine coolant will cause the engine to overheat but more importantly, it could be a sign of cooling system trouble, such as leaks or other malfunctions.

Bad Thermostat

The cooling system thermostat gauges the engine temperature and then signals the release of engine coolant when the engine is getting too hot. If the thermostat is malfunctioning, it will not release the coolant and your engine will overheat. This part is easy to test and replace, and if your vehicle is more than 10 years old, the thermostat has reached the end of its life expectancy.

Radiator Fan

The radiator fan is crucial to the cooling system. As coolant circulates through your vehicle’s engine, it draws heat away from the engine parts. The coolant is then returned to the radiator where air and the radiator fan reduce its temperature. Once it’s cool, it is circulated through the engine again. A malfunctioning radiator fan will not be able to reduce the coolant’s temperature.

System Leak

As we briefly touched upon above, a system leak will also cause the cooling system to fail. The leak could come from the radiator hoses or lines, the water pump, the reservoir, or the radiator itself. A common cause of a cooling system leak is age. Corrosion can rust the radiator and water pump, causing holes through which the coolant will leak. Old hoses and valves can also leak.

Blocked Cooling System

Finally, although unusual, your engine’s cooling system can get blocked. Usually, buildup is the cause of an obstruction, but trapped air can also affect the cooling system’s performance. If the flow of coolant through the engine is compromised by an obstruction, your engine will overheat. Older cooling systems can suffer from buildup that can obstruct the coolant flow.

If you suspect cooling system failure of any kind, call Kauai Auto Repair, LLC. We are located in Lihue, HI, and we’d be happy to inspect your cooling system and fix the problem.

Photo by Yaraslau Mikheyeu from Getty Images via Canva Pro
Menu