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What are the Symptoms and Causes of Engine Overheating

Written by Paul Marles
When we operate an engine it generates a lot of heat due to internal combustion in the chamber of the engine. The engine is mainly cooled by two methods like coolant or oil, if any of these does not work properly it will get overheated.
In present generations of car’s, they have very sophisticated cooling systems that are armed with multiple heat sensors and automatically controlled electrical fans designed to keep your engine safe in any weather conditions and all types of terrane, but the problem of engine overheating is still there.
Stay with us in the learning journey that how to prevent it and stay safe during such conditions.

8 Common Causes of Engine Overheating

Engine overheating can turn a smooth ride into a stressful & horror ride, and understanding its common causes is key to preventing this issue. Here are some of the most frequent reasons behind engine overheating:

Coolant Leakage

Leaky hoses, a cracked radiator, or a faulty water pump can all result in coolant loss, disrupting the cooling system’s balance.
 If the leak is small, you might be able to temporarily patch it up until you have time to bring your vehicle to the shop and replace that component.

Faulty Thermostat

The thermostat regulates coolant flow. If it sticks closed, it prevents coolant from circulating, causing overheating.

 

Failing Radiator Issues

 A clogged or malfunctioning radiator can’t dissipate heat properly, leading to elevated temperatures.

Excessive Engine Load

Towing heavy loads, driving uphill for extended periods, or excessive idling can strain the engine, generating excess heat.

Blown Head Gasket

A blown head gasket can allow coolant to mix with the engine oil, disrupting both lubrication and cooling systems.

Faulty Temperature Sensor:

A malfunctioning temperature sensor may not accurately measure the engine’s temperature, leading to inadequate cooling responses.

Broken Water Pump

 The water pump circulates coolant. A malfunctioning pump disrupts this circulation, resulting in inadequate cooling.

Engine Oil Problems

 Low oil levels or using the wrong type of oil can lead to increased friction and heat generation within the engine.

Hot Weather Conditions

In today’s generation, Modern cars are equipped with cooling systems that dissipate heat well in hot weather.
Old and vintage cars have a different story. They do not have a liquid cooling system, so they may overheat simply due to high outside temperatures. The best thing to do in this case is to stop and get your vehicle towed to a service station as soon as possible.

What Are the Symptoms That Your Car Is Overheating?

Recognizing the symptoms of a car overheating is crucial to addressing the issue promptly and preventing potential engine damage. If you encounter at least a few of these symptoms present in your vehicle, then you should take proper action and resolve the issue before it is too late.

Temperature Gauge Reading High

The temperature gauge on your dashboard moves into the red area or abnormally high levels. This is often the most obvious indicator of an overheating engine.
In normal situations, the needle of the gauge will be in the black area. This indicates a normal temperature. 

Lack of Engine Power

The engine might feel power lag or unresponsive throttle, as high temperatures can negatively impact engine performance and efficiency while driving.

Burning Smell

There are many things included in the manufacture of an engine like rubber material, plastic, and engine oil all these things have a distinct burning smell, often mixed with smoke, indicating that components or fluids are reaching dangerously high temperatures and indicating engine overheating.

Steam under Hood

Steam rising from the engine bay or smoke coming from underneath the hood is a clear sign of overheating this happen because of coolant is boiling in extreme temperature so you should Pull over and turn off the engine immediately if you see this.

Ticking & Strange Noise

Unusual sounds like ticking, gurgling, bubbling, or hissing coming from the engine area could indicate coolant boiling this indicates that the engine is too hot. It means the engine oil is overheating and is not doing its lubricating job well. 

Important Tips to Prevent Your Car From Overheating

Preventing your car from overheating requires regular maintenance and a watchful eye.
Here are some important tips to help you keep your engine running cool and avoid this horror overheating situation:-
  • Check Coolant Levels  Regularly and top them up as needed. Make sure that the coolant that you use is recommended by your vehicle’s manufacturers.
  • Flush and clean your Radiator by spraying and compressor to remove corrosion and make sure airflow is for effective cooling.
  • while driving always check on the temperature gauge not above 90 degrees.
  • Always park your car in a shaded area or garage.
  • check your radiator cap because a faulty cap cannot hold the pressure which leads to coolant loss and overheating.
  • Service your vehicle regularly because Most overheating issues are caused by poor maintenance!
  • Avoid overloading and never go beyond the capacity of your car.
  •  Keep some emergency supplies like coolant, a jug of water, and towing hook, etc.
  • Try to avoid traffic congestion and always be gentle with your car. Don’t do rash driving.
By following these preventive measures, you can surely reduce the risk of your car overheating and ensure a smoother and more enjoyable driving experience. Regular maintenance and attentive care are the keys to keeping your engine’s temperature in Contol.

What Should You do if Your Car Engine Overheats?

If your car engine overheats while you’re driving, it’s crucial to take immediate action to prevent further damage. Please follows these steps in the overheating situation:-
  • If your temperature gauge show in the red zone please turn off the engine immediately and pull over safely.
  • If you are in the car turn off the AC and roll down the windows of your car.
  • Pop you Hood and try to open it but make sure hood is not much hot.
  • Please don’t try to open the radiator hose because the temperature of the water is very hot and it might come over you.
  • wait for cooling down your engine for some time and then open the radiator hose.
  • Check the coolant level and make sure no coolant leakage there.
  • Call Someone for help and wait for them, never try to drive again it can dead your engine forever.
  • After all, you have no option and have to drive then monitor the situation very closely.
Remember that engine overheating can cause significant damage if not addressed promptly. Your safety and the health of your vehicle are above all. If you’re unpredictable about what to do or if the situation seems unsafe, it’s best to call for professional assistance rather than risk further complications.

What are the Common Damage related with Overheating Engines ?

An overheating engine can cause various types of damage, ranging from minor issues to severe and expensive repairs.
Here are the common types of damage associated with overheating engines:-
  • It can damage head gaskets and seals and their repair cost goes up to $1000 to $2000.
  • Loss of power of your engine will also put you at risk. Your car will not react as quickly as it should, especially in a situation when you need full power, such as when passing another vehicle.
  • Extreme heat can cause the radiator to crack, leading to coolant leaks and a compromised cooling system.
  • It can also damage your piston and cylinder which repair cost between $900 and $1800, depending on the type of vehicle you’re driving.
  • Overheating can break down the additive of your coolant leading to corrosion within the water pump. A damaged water pump can result in poor coolant circulation and overheating.
  • High engine temperatures can affect the transmission fluid, potentially leading to transmission issues and reduced performance.
  • Catalytic Convertor can also get damaged in regular  overheating , which can lead to reduced engine performance and increased emissions.
You can prevent engine overheating through regular maintenance and careful driving habits is essential to avoid these types of damage. Ignoring overheating issues can lead to significant repair costs and even the need for engine replacement.

About the author

Paul Marles

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