How to Remove Air Pocket in Cooling System? -What happens if
Need help with How to remove air pocket in cooling system? In this article, we will learn air pocket removing steps and learn also What happens if there is air in the cooling system.
How to Remove Air Pocket in Cooling System?
Removing air pockets from a vehicle’s cooling system is an important step in maintaining the proper functioning of the engine. Air pockets can cause poor cooling performance and overheat, leading to potential damage to the engine.
The process of removing these air pockets is known as “burping” the system, and it is relatively easy to do on your own. In this article, we will discuss the steps involved in properly burping a cooling system to remove air pockets and ensure optimal engine performance.
The first step in burping a cooling system is to locate the bleed valves or the upper radiator hose. The bleed valves are typically located on the top of the radiator or the engine block, and they may be labeled as “bleed valves” or “air bleed valves.”
The upper radiator hose is the large rubber hose that runs from the top of the radiator to the engine. It is important to make sure the engine is cool before attempting to burp the system, as working on a hot engine can be dangerous.
Once you have located the bleed valves or the upper radiator hose, the next step is to open the valves or squeeze the hose to release the trapped air. The bleed valves can typically be opened by turning them counterclockwise using a flathead screwdriver.
If your vehicle doesn’t have bleed valves, you can use the upper radiator hose to remove the air pockets. To do this, simply squeeze the hose to release the trapped air. You can also use a funnel to pour the coolant into the reservoir while the engine is running and the air bubbles will come out.
When the air is released, you should see a steady stream of coolant coming out of the valves or the hose. As the air is released, the coolant level in the radiator may drop, so it is important to keep an eye on the level and add more coolant as needed.
Once you have released all the trapped air, close the bleed valves or release the upper radiator hose and fill the radiator with coolant. Make sure to use the proper coolant type recommended by the vehicle manufacturer.
It’s also worth noting that if your cooling system has a lot of air pockets or if it has been damaged, you may need to repeat the process multiple times or take additional steps to fix the underlying problem. Additionally, if the system has been opened for repairs or maintenance, it is important to bleed the system to ensure that all the trapped air is removed.
It’s also important to check the system for leaks, as a leak can cause the coolant level to drop and allow air to enter the system. If you notice a leak, it is important to have it repaired as soon as possible to prevent further damage to the engine.
What happens if there is air in the cooling system?
If there is air in the cooling system, it can cause a number of issues that can affect the performance of the engine. Some of the main issues caused by air in the cooling system include:
- Poor Cooling Performance: Air pockets in the cooling system can prevent the coolant from circulating properly, leading to poor cooling performance and a higher risk of overheating.
- Overheating: Air pockets can cause the coolant to boil over at high temperatures, leading to overheating of the engine. This can cause damage to the engine and other components, and in severe cases, it can lead to engine failure.
- Reduced Efficiency: Air pockets can reduce the efficiency of the cooling system, leading to increased fuel consumption and reduced engine performance.
- Reduced Pressure: Air pockets can reduce the pressure in the cooling system, making it difficult for the coolant to flow through the system and keep the engine cool.
- Leaks: Trapped air can cause leaks in the system as the pressure inside the system is not balanced and can cause damage to the hoses and other components.
It’s important to remove the air pockets from the cooling system as soon as possible to prevent further damage to the engine and to maintain optimal performance. The process of removing the air pockets is known as “burping” the system and it’s relatively simple to do.

How to get rid of air in coolant system?
Here are the steps to properly get rid of air in the coolant system:
- Locate the bleed valves or the upper radiator hose: The bleed valves are typically located on the top of the radiator or the engine block, and they may be labeled as “bleed valves” or “air bleed valves.” The upper radiator hose is the large rubber hose that runs from the top of the radiator to the engine.
- Make sure the engine is cool: It is important to make sure the engine is cool before attempting to burp the system, as working on a hot engine can be dangerous.
- Open the bleed valves or squeeze the upper radiator hose: Use a flathead screwdriver to turn the bleed valves counterclockwise to open them or manually squeeze the upper radiator hose to release the trapped air.
- Monitor the coolant level: As the air is released, the coolant level in the radiator may drop, so it is important to keep an eye on the level and add more coolant as needed.
- Close the bleed valves or release the upper radiator hose and fill the radiator with coolant: Once you have released all the trapped air, close the bleed valves or release the upper radiator hose and fill the radiator with coolant. Make sure to use the proper coolant type recommended by the vehicle manufacturer.
- Check for leaks: It’s important to check the system for leaks, as a leak can cause the coolant level to drop and allow air to enter the system. If you notice a leak, it is important to have it repaired as soon as possible to prevent further damage to the engine.
It’s worth noting that if the system has a lot of air pockets or if it has been damaged, you may need to repeat the process multiple times or take additional steps to fix the underlying problem. Additionally, if the system has been opened for repairs or maintenance, it is important to bleed the system to ensure that all the trapped air is removed. Regularly checking and maintaining your cooling system can save you from costly repairs and prolong the life of your engine.
Final Words on How to remove air pocket in cooling system
In conclusion, burping a cooling system is an important step in maintaining the proper functioning of the engine. By removing trapped air pockets, you can ensure optimal cooling performance and prevent overheating.
The process of burping a cooling system is relatively easy and can be done on your own. However, if you are unable to locate the bleed valves or the upper radiator hose, or if you notice a leak in the system, it is best to consult a professional mechanic for assistance. Regularly checking and maintaining your cooling system can save you from costly repairs and prolong the life of your engine.
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