What Causes Car Overheating While Driving And How To Prevent It

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What Causes Car Overheating While Driving And How To Prevent It

One of the most major problems that car owners and drivers confront is engine overheating. A car’s cooling system is always under pressure and at a high temperature, which can lead to engine overheating issues over time. While you may like the summer heat, you must help your car in staying cool as the temperature increases. Overheating car can cause harm to the car itself and endanger your safety.

What are the common causes that can lead to engine overheating? You may ask. Car Engine overheating can be caused by a number of issues. Warm temperature alone isn’t enough to cause your car engine to overheat. If your car's cooling systems aren't working properly, it can cause significant engine damage and costly repairs.

Causes Of Car Overheating

Here are few causes of car overheating:

Coolant Issues

Every car has a cooling system to help keep the temperature of the engine down. If your cooling system has a leak, blockage, or pump malfunction, the coolant may not be able to circulate properly. Even a low level of coolant can lead to engine overheating. Cooling system malfunctions aren’t just problematic when it’s hot out; very cold temperatures can cause coolant to freeze and prevent circulation.


Another possibility is that there is a problem with the thermostat. The thermostat is the little device located between your car's engine and radiator. It regulates the flow of coolant. A faulty thermostat, on the other hand, will fail to perform this function, preventing the radiator from receiving coolant. A faulty or damaged thermostat can easily cause your vehicle to overheat.

Low Oil Level

Motor oil is essential for maintaining the temperature of the vehicle. When the oil level in the engine is low, the engine is unable to flush its waste heat, resulting in overheating. Engine oil aids in the cooling process and prevents excessive heat buildup. It also maintains the engine's different components properly lubricated, reducing friction and overheating.

Faulty Water Pump

A water pump is frequently regarded as the heart of your cooling system. A leaking water pump stops coolant from passing through the engine block, hoses, and radiator. When there is a leak, coolant stops flowing, resulting in a fast temperature rise.

Damaged Radiator

Another significant cause of a car overheating is a broken or cracked radiator. The radiator of a vehicle is responsible for removing heat from the rest of the cooling system. When the radiator is damaged, the engine will not get an adequate portion of the coolant. It may cause the car to overheat if it is not operating properly because of leaks and blockages.

Radiator Cooling Fan

The radiator fan, often known as the cooling fan, is located between the radiator and the engine. While your car is stopped or driving at a slower speed, it circulates cooling air through the radiator. When the cooling fan is turned on, it takes heat from the engine-made coolant, allowing the temperature to remain stable. If your cooling fan is not turning on or operating at the proper level, the heat generated by the engine will not be eliminated, resulting in overheating.

How to Stop a Car from Overheating

Consider these tips for preventing a vehicle from overheating :

Check Coolant Level

This is the most popular method for preventing your car from overheating.

  • Check the coolant levels in your vehicle on a regular basis.
  • Check your coolant and water levels.
  • Examine the coolant reservoir or the radiator.
  • Open the radiator only when the car engine is cool.

Check The Thermostat

The thermostat is another component that should be examined. The thermostat is in charge of controlling the flow of coolant through the engine. Your car's cooling system may not function correctly if you have a malfunctioning thermostat.

Check For Coolant Leaks

If you have a sufficient amount of coolant and water in your car's system, and you are still experiencing excessive engine temperatures, you should get your car's cooling system examined for leaks.

Get Your Radiator Flushed

Even if you maintain proper engine coolant levels, it will eventually get filthy and require replacement. A radiator flush, also known as a coolant flush, consists of removing old coolant from the radiator, cleaning it using flush fluid, and replacing it with a new coolant. It will clean the radiator and prevent blockage.

Disable The Air Conditioning

Can car air conditioners cause overheating? Yes, it is possible. Either the air conditioning compressor fails, increasing the engine load, or the compressor locks up on the fan belt, making it impossible for the fan belt to cool the heat from the engine coolant. So, when the weather is pleasant, turn off the air conditioning. This will aid in reducing engine pressure and cooling the engine.

Replace Your Car Battery

While driving, a defective battery might cause overheating. If your vehicle battery is more than three years old, it may not be producing the same amount of power it previously did, causing your car to work harder and overheat.