Why is my Car Overheating?


If your notice that your car is overheating, stop driving it right away. This doesn’t mean that driving an overheat car will lead to a blast or firebreak out, but continue doing so will severely damage your vehicle. So, when you discover that the temperature gauge has changed its direction to the “hot” side, you should take action and pull over by the roadside to verify the issue.

Depending on where you drive or what conditions your car faces on a daily basis, this can be caused by a number of issues. Here are some of the answers to why your new vehicle may be overheating.

There is a leak in the cooling system

A leakage in the coolant can be mainly caused by two things. This includes cooling system hoses that allow the antifreeze to flow inside the engine and lack of proper maintenance of the coolant. At times referred to as antifreeze, the coolant is made of half a mixture of water and half a mixture of ethylene that is applied in car engines  to make the freezing points of water based liquids to be colder and their boiling points to be higher. So, a low level of coolant can be due to a leakage, which may make the engine to overheat.

The radiator fan is not working

A radiator fan is usually based in front or in the back of the radiator. Its role is to blow cool air onto the radiator so that it can cool down in case it heats. In the situation where the fan isn’t working, the engine will overheat and there will be no fan to cool its temperature down. When you come across this, you should take the car to a mechanic to replace the fan.

There is a broken or loose belt/chain

A broken or damaged belt will cause the engine to overheat as the water that is meant to cool the engine will not be pumped as needed. Normally, the belt turns the camshaft in your engine in time with the crankshaft. In return, this enables the camshaft to open and close valves in great time so that the engine works at the greatest level possible. You should check these belts regularly and ensure that they are in good shape.

A closed or stuck thermostat

If you have a bad thermostat, it normally depicts itself by allowing the car to run for some few minutes and then the temperatures shots up suddenly. This makes the car to overheat. Usually, a thermostat has two functions. The first one is to keep the coolant from getting to the system and it also opens a chamber that allows the coolant get to the system to ensure that the engine doesn’t heat up. It is able to perform this by checking the temperature of the engine and then opening the moment the engine gets around 200 degrees, 95 degrees Fahrenheit. Take the car for repair of the thermostat when this occurs. .

A dysfunctional water pump

The water pump is the heart of the cooling system. If it’s not working or has an issue, expect the entire car to heat up. The water pump keeps the coolant circulating between the radiator and the engine. It is able to maintain all the proper liquids flowing well. In the situation where the pump isn’t working, the coolant remains pulled in its tank and the engine temperature raises up until it overheats. Make sure that the water pump is functioning well or else the other cooling system won’t function well.

Damaged radiator

The work of a radiator is to act as a heat exchanger and transfer heat via thin fins that are soldered t flattened tubes. A good number of radiators are constructed from aluminum and through the usual wear and tear, they can have cracks which enables coolant and water to enter leading to leakage. So, when you see steam pouring from the car engine, just know that it is coming from fluids in the radiator. A damaged radiator should be replaced immediately.

Lack of oil

Last but not least, motorists normally take low oil or lack of oil to be a little issue. But this can as well cause the car to heat up. This is because oil lubricates all the rumbling, smashing and mashing parts of your car engine that allows combustion to power the engine to function. When there is no oil, these parts start to cause friction that heats the engine to greater levels. So, always ensure that the oil is full.

Bottom line

When your car overheats, you shouldn’t panic at all but instead, find out what the problem is quickly before things run out of hand. Car overheating can be caused by various things like a closed thermostat, bad water pump, leakage in the coolant, broken belt or even a damaged radiator. After knowing what the issue is, take the vehicle to your mechanic and have the issue resolved immediately.


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