Why can the level of antifreeze in the expansion tank suddenly rise in the spring?
- May 19, 2022
- 0
As a rule, most drivers begin to worry when the level of antifreeze in the expansion tank drops below the MIN mark. After this, car owners begin to
As a rule, most drivers begin to worry when the level of antifreeze in the expansion tank drops below the MIN mark. After this, car owners begin to add fluid and look for leaks. However, even more reasons to be nervous appear when the amount of fluid starts to increase. The AvtoVzglyad portal tells what the problem could be.
If the antifreeze level rises when the engine warms up, this is completely normal. But if there is too much liquid in the tank, you should be wary as it can indicate serious problems.
One of the causes of problems will be an air lock in the cooling system. It leads to an increase in pressure and squeezing of antifreeze. And air may appear in the system due to depressurization of pipes and hoses. The fact is that in the spring there are often sudden changes in temperature. It will be cold at night and warm during the day. When it is cold, the dimensions of the joints decrease, the pressure in the system drops and air leaks form. And the older the car, the greater this risk, because the tubes have already lost their elasticity, or even cracked. From such an air lock, the thermostat or “stove” may not work properly, so you have to get rid of it.
Another cause of a spark plug is errors when replacing or topping up antifreeze. If it was filled too quickly, the air simply wouldn’t have time to leave the system completely. So even if the fluid is changed before the summer season, the driver could have problems.
Continue. After the winter, a lot of dirt often accumulates in the engine compartment and the radiators of the engine and air conditioning are also heavily clogged. Clogged radiators make cooling difficult and dirt can damage the temperature sensor. This can cause overheating in the spring when engine speeds and loads increase.
This is a very serious problem because if the engine is aluminum and even without cast iron liners, the head of the block can “lead” and the engine will have expensive repairs. And worse, you have to buy a contract generator, because the old one cannot be repaired.
Another reason is damage to the cylinder head gasket. In this case, exhaust gases begin to enter the cooling system, which will squeeze the liquid out. For many drivers, it has now become a spring surprise. The fact is that this year many people bought used cars at the end of winter or the beginning of spring in order to “confirm” the depreciating rubles somewhere. Purchases were made in a hurry, now they regret it.
Only one advice can be given: unscrew the oil filler cap and inspect it. If there is a white coating on it, the gasket should definitely be replaced.
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Photos from open sources
If the antifreeze level rises when the engine warms up, this is completely normal. But if there is too much liquid in the tank, you should be wary as it can indicate serious problems.
One of the causes of problems will be an air lock in the cooling system. It leads to an increase in pressure and squeezing of antifreeze. And air may appear in the system due to depressurization of pipes and hoses. The fact is that in the spring there are often sudden changes in temperature. It will be cold at night and warm during the day. When it is cold, the dimensions of the joints decrease, the pressure in the system drops and air leaks form. And the older the car, the greater this risk, because the tubes have already lost their elasticity, or even cracked. From such an air lock, the thermostat or “stove” may not work properly, so you have to get rid of it.
Another cause of a spark plug is errors when replacing or topping up antifreeze. If it was filled too quickly, the air simply wouldn’t have time to leave the system completely. So even if the fluid is changed before the summer season, the driver could have problems.
Continue. After the winter, a lot of dirt often accumulates in the engine compartment and the radiators of the engine and air conditioning are also heavily clogged. Clogged radiators make cooling difficult and dirt can damage the temperature sensor. This can cause overheating in the spring when engine speeds and loads increase.
This is a very serious problem because if the engine is aluminum and even without cast iron liners, the head of the block can “lead” and the engine will have expensive repairs. And worse, you have to buy a contract generator, because the old one cannot be repaired.
Another reason is damage to the cylinder head gasket. In this case, exhaust gases begin to enter the cooling system, which will squeeze the liquid out. For many drivers, it has now become a spring surprise. The fact is that this year many people bought used cars at the end of winter or the beginning of spring in order to “confirm” the depreciating rubles somewhere. Purchases were made in a hurry, now they regret it.
Only one advice can be given: unscrew the oil filler cap and inspect it. If there is a white coating on it, the gasket should definitely be replaced.
SUBSCRIBE FOR EXCLUSIVE CONTENT
PORTAL “AVTOVGLYAD” IN TELEGRAM
Source: Avto Vzglyad
I’m Sandra Torres, a passionate journalist and content creator. My specialty lies in covering the latest gadgets, trends and tech news for Div Bracket. With over 5 years of experience as a professional writer, I have built up an impressive portfolio of published works that showcase my expertise in this field.
