Sometimes you can face such a problem that after you stopped, after plug or slow and long ride around the city, you notice the smell of antifreeze or Tosla, here that one has been flooded. Or detect under the car a coolant puddle. If, of course you do not know what it is, or on the contrary you know, you will probably won't have such a shock. Which can be experienced if you read about similar symptoms on the Internet.
Namely, the most response to such a problem is the exercise of the gasket of the GBC. For those who do not know what CHC is will explain, the GBC is the head of the cylinder block, if it is not difficult to disassemble the engine probably the first idea will change this gasket. But imagine that there are two more reasons that antifreeze squeezes out of the system.
1- This is a height plug in the system of the coolant, because of it, not only the stove in the cabin may not work, and this is already a sign of the plug in the coolant, provided that the fluid level is normal, but also not the correct operation of the thermostat is possible. What can lead to an increase in pressure in the cooling system. Well, the extrusion of antifreeze.
2 is a problem associated with the expansion barrel, well, and the smart lid of this barrel.
Get rid of the air quite simple, but here to find a problem in an expansion barrel when it glows from novelty :) Sometimes oh, how not easy.
A bit of theory, to improve the circulation of coolant over the engine system, when the motor starts, a small pump pressure is created, which increases the efficiency of the cooling system. If there is no sufficient pressure in the coolant system, the engine will quickly heat up. What can lead to boiling or decomposition of antifreeze. When the decomposition of antifreeze pairs are looking for weak points. Such as wooden rubber sealing rings of the cooling system, bad nozzles, not tightly tightly lid expansion barbell or radiator.
Well, etc. and TP.
In the word of the gum not eternal and in Siberian conditions, as in the army there is a year for two. Yes, and the quality has recently lame by spare parts and not only.
GBC is of course also not a minor problem, but it is also quite possible to diagnose and as it turned out very simple.
And so we start the engine open the lid of the expansion barrel if on idling You can see bubbles that go from the main hose, this one of the two or is broken by an air traffic jam, or a problem with the gasket of the CHC.
If this is a air traffic jam, then rejected and waiting for some time from it can be delivered, the most effective procedure is very complex in the description as it is necessary to conduct a number of consecutive actions and better to show them on the camera. There are many ways to drive the air, another way is in The end of the topic. Since I have already changed the antifreeze for more than this.
If there are no traffic jams and the problem with the GBC, then you will have a constant or weak drilling in the expansion barrel or the level of antifreeze will gradually leave.
For example, for 2 years of operation, cars that I have now and that I had before it I did not pour into the cooling system or gram! The coolant was on the MAX level. This indicates the correct operation of the engine cooling system.
If you have a coolant somewhere and there are no traces on the engine, then there may be a coolant to be either in the cylinder, or in the silencer, which also often happens. This speaks about the problem with the GBC.
Well, about the GBC sorted up now let's go back to the expansion barrel.
First, it is necessary to look at the leaks of antifreeze on the barrel, there are three problems with it:
1- The lid of the expansion tank (covered the cover of the cover) passes the air, the deformation of the cover of the RB covers of the -shvent barrel is only a replacement for the original.
2- Torn thread of the lid of the expansion barrel, in this case the new cover will not help for a long time!
The 3- expansion barrels has a flow or burst on a seam, which from an increase in pressure in the engine system system manifests itself, there are such cases that as cooling in DVS The gap is joined and the coolant stops squeezing.
4- Air sublicas - very rarely but happens!
Most importantly, this is a visual inspection on the subject and places of leaks, and checks on damage to hoses, our auto industry hoses of the coolant changed point changed once every other years.
Also, the most important thing is not to panic and not to listen to what the experts say, since how many cars have so much and completely nothing to meet problems.
This is me to the fact that if antifreeze boiled on Nexia, it is a cylinder blocking that on the VAZ 21083 is just a lid of the expansion barrel. That is, all cars are different and should not scratch them under one comb. Just need to diagnose the problem correctly.
Everything turned out quite enough for me, again on the service I was sold to the lid on the expansion tank, because of this problem, I squeezed antifreeze after I was jammed, about 50-100 grams of 7 liters. And with each stop, this procedure was repeated as written. What time the lid worked and everything was ok, but a week later, the gum smashed and the gap appeared, and again everything was repeated. The suspension did not help.
Then I drew attention to the thread on which the lid was twisted and that I found it, when twisting.
If you delay the lid, it rises crooked and the liquid easily leaves the barrel. If you look at the thread, the barrel is not clear the whole or not, but if it turned out on it, it turned out on one side. This Friends of Jamshuta made me such a gift at the station.
As a result, I had to drive to buy a new barrel, I did not twist the lid on the way tightly, it got rid of me from air traffic jam in the cooling system. Therefore, the video of the coolant is not rising on the place where it was until the last trip.
A barrel cost me 750 rubles the original, my new cover was bought a week ago for 300 rubles the original, and that 1050 rubles for everything about everything. After installing a new barrel, the new cover lay tightly, the engine began to work trick, here's the photo of the new installed barrel:
To start acting, you need to know why Tosol or antifreeze boils in expansion tank - In case, from under the hood poured steam. Depending on the cause and manipulation will be different. The main thing is that you need to remember: in no case try to get home with a boiling engine.
If you neglect by this, then the overhaul may not save your faithful horse. A fire, a clear case, not to expect, but the overheated iron expands, and without cooling at least it will have to go through the engine, changing the flew spare parts. And, in the most extreme case, and at all: buy a new engine.
Why tosol boats or antifreeze in an expansion tank: a reason can serve several nodes ,. In each case, you need your actions.
Check the level!
Before looking for complex breakdowns and think, how to get to the destination, you should simply look into the tank. It is possible that the level of Tosla is insufficient. Another thing, if the antifreeze is flooded here just just, and now it is not again. It is necessary to check the integrity of the tank itself and bringing the tubes to it. If you have been found to flow, it is at least temporarily, until you get to the car market and buy new ones. Or go there by public transport.
Thermostat
It provides the circulation of refrigerant in two circles - small and large. If the valve is embroidered in one position, it will be available for passing only small. Accordingly, the fluid will not have time to cool and lose the ability to cool the parts. To make sure that it is in a thermostat that, we open the hood and are looking for nozzles attached to it. If the one leads to the radiator, more hot, than his fellow - you summed up the thermostat (especially, it is characteristic of cars like Tavria).
Check carefully - you can burn. In case you are not far from civilized places, change the thermostat is not a problem. If he flew on the track, it will have to pour water constantly into the cooling system, wait until everything cools, pass kilometers 5 - and on the new one until you reach the nearest place where you can buy a new one.
Cooling radiator
With him are also possible trouble. They can be caused by three reasons:
- The most harmless option: waited until he cooled, the plug was over - and with a slight heart go further;
- the core is clogged inside - precipitation refrigerant or dust. The pressure through the radiator falls, the cooling is insufficient;
- skip and layering in nozzles. The hoses fall thermal conductivity, and the liquid does not have time to cool again.
Water pump: It most often brings in those machines, where the torque on the pump pulley is served separately from the gas distributor. Pulley rotation frequency may decrease if weaken (stretched) drive belt. Making sure that your thermostat is normal, try tagging the belt and go after cooling the engine and the refrigerant top.
Fan: If the fan was killed, this reason is the easiest way. Even if on the car there is no corresponding sensor warning that the fan does not work, a person, not the first time-sitting behind the wheel, will hear it in sound. In the city and slowly, with a broken fan you can get to the repairer. Outside the city - we are looking for a tug.
Excess pressure
A jet of a pair of refrigerant can take place not only at some breakdown. At the same time, the temperature sensor shows that the engine is normal and did not overheat, and Tosol boys in the tank. If, already muffled the motor, you hear the bouffaging of antifreeze and observe its active livelihood, buy the cover on the neck of the cooling system with the thermostat sensor and the valve on the spring.
When picked up the pressure inside the spring system, the sensor will raise the lid and burst the excess of the refrigerant into the tank. We emphasize: it is only in case the engine does not overheat, and Tosol boils at the same time.
Well, and finding out why Tosol boats or antifreeze in an expansion tank, immediately need to take appropriate measures to do after not biting their elbows, paying expensive repairs.
But often the problem is able to eliminate on their own. As practice shows, in most cases the driver itself is to blame. After all, the cooling system must be regularly serviced. Let's figure it out in more detail with why antifreeze boils in an expansion tank, and how to fix the problem.
Engine cooling system
First of all, I would like to figure out how the engine is cooled in more detail. The system is generally not complicated, but there are some nuances in her work. It is necessary to understand that as soon as you launched the car engine, it is intensively heated. It contains special channels for which the cooling fluid under pressure circulates and takes part of the heat. The main elements of the cooling system: radiators, pump, thermostat, expansion tank cover (air valve), nozzles, etc.
The boiling point of antifreeze is greater than water. That is why it is used in modern cars. If you remember the course of physics, then we can conclude - the increase in pressure leads to an increase in the boiling point. Accordingly, the higher the pressure, the higher the temperatures will boil. But heavy operating modes (for example, standing in traffic jams) inevitably lead to a constant increase in pressure in the system. When it reaches a certain value, the air valve opens, thereby bothering excess steam into the atmosphere.
Regular maintenance
As noted at the very beginning of this article, the cooling system must be periodically checked for leaks, the state of antifreeze, the performance of the pump and thermostat. If this is not done, then there is a chance of a serious breakage and engine overheating. Overhaul - the event is not cheap, therefore it is not necessary to bring it.
Another enough enough important moment - The service life of antifreeze. It largely depends on its type. For example, G11 is desirable to change once a few years, and G12 + easily withstands about 5 years. At the same time there are recommendations of the manufacturer's plant to the type of coolant and the regularity of its replacement. Therefore, if you notice that it periodically boils antifreeze in an expansion tank, then it still does not mean any mechanical malfunction. It is possible that he just lost part of his performance characteristicswhy the boiling point dropped. Well, now we turn directly to the main problems and methods of their elimination.
Insufficient antifreeze level in an expansion tank
When the boiling temperature drops in the system. In most cases, the problem is solved by the usual plot. It is advisable to perform it on the cold. It is determined by the fact that at high temperature the fluid expands. Therefore, if you board the expansion tank to the "minimum" mark, while cooling the toosol system will become much smaller.
Actually, there is nothing complicated in the plot. We find the expansion tank and unscrew the cork. It can be as an ordinary plastic, which does not fulfill almost no function and hermetic. After we twisted it, pour the required amount of antifreeze. It is desirable that the level of antifreeze in the expansion tank be between the maximum and "minimum" marks. As for the reasons, due to which the level fell, they are only somewhat. It is likely that when servicing the system was not tosol. The second option is to leak.
Malfunction of thermostat
If you have noticed that it squeezes antifreeze from the expansion tank, it can talk about the encoding of the thermostat. The fact is that it works as a valve and has two positions: closed and open. In the closed position, the circulation on the system is carried out in a small circle. By big circle The liquid passes through the radiator, which contributes to its accelerated cooling. If the car is cold, the thermostat valve is closed, which contributes to the accelerated warming of the power unit. When the engine is hot, the thermostat opens, and the coolant circulates through the radiators, where it is cooled by the flow of counter air or diffusers.
What do we get if the thermostat is crossed? There are two options: constantly boils antifreeze in an expansion tank to hot. This is due to the incorrect circulation of coolant. At the same time squeezes antifreeze from the expansion tank, since it is constantly expanding. This suggests that the valve jammed in a closed position. The second option - the car will warm up for a very long time. With any problems with the thermostat, it must be replaced, it is not too expensive to save on such a responsible part.
Radiator cooling and its malfunction
Designers at the vehicle creation stage are laid by specific data on the speed of moving antifreeze in the system. With time inner space The radiator is clogged with salts and sediment. This is not avoided, although the problem is simply eliminated by its own. Just when replacing the coolant rinse the system special meansthat will allow partially or completely removed the resulting precipitate. As a result, the coolant will pass faster in a circle and much more efficiently cooled.
At the same time, you should not forget about the radiator outside. Since it is installed behind the front bumper and is cooled by the incoming air flow, it is contaminated outside fast enough. The cells are clogged and the heat exchange is broken. Air does not pass through the radiator, which leads to the boiling of antifreeze in the expansion tank. The cells are purified by special detergent solutions under low pressure. It is advisable to not use the car wash, because the honeycomb can be brought.
Air valve fault
As we have already figured out, the plug of the expansion tank is pretty important elementAlthough many motorists do not change it for the entire service life of the car. But here someone is lucky, because the valve can work regularly for a long time, and may fail for the year of operation or even less.
Check the cork on performance is quite simple. To do this, you must start the engine of the car and completely warm it. When an excessive pressure is checked in the system, the valve must work and unnecessary pressure will be reset. This can be understood by characteristic sound. In addition, the valve breakage will lead to the extrusion of antifreeze into the expansion tank. The cover is not subject to repair, so it must be replaced.
Fans cooling
Antifreeze temperature sensor is required not only to monitor the status of the system on dashboard. It performs another, no less important feature. The sensor sends data to on-board computer And when a certain temperature is reached, it gives a signal to the launch of cooling fans. If, when moving at high speed diffusers are practically not needed, then in traffic jams they are simply necessary.
If something works incorrectly, the start of the fans does not occur, while often the sensor itself works normally. The problem may be in the cliff of the electrical circuit or the failure of the fuse. You can call the wiring both yourself and at the electrician for a hundred. After that, the problem should disappear. But first of all it is advisable to check the fuse. To do this, it is enough to install a new one. Less frequently, the relay comes out. On some models of cars not to buy it in a regular auto shop. In this case, as a temporary solution, you can set the jumper. But you need to understand that the fan will work constantly.
Break in the system
Antifreeze leak is the most common problem. Over time, the nozzles are breathed, microcracks appear on them. Also weaken fastening places to radiators and an expansion tank. As a result, a small leak appears first, which over time is only enhanced. If you do not remove the problem, then ultimately the nozzle can break. All antifreeze will turn out, and the engine will overheat if it is not noticed on time.
So that this does not happen, it is recommended to periodically change rubber pipes, inspect the status of the fasteners, etc. Also, the leak may appear as a result of the fault of the air valve. When there was too much pressure in the system, then there was a weak place through which the coolant goes. In this case, it is not clear how much to pour antifreeze, because its level will be constantly changed. It is advisable to determine how soon.
Water pump
The so-called pump is responsible for pumping the coolant on the system. Usually, the water pump is included in the set of gas distribution mechanism and changes according to the regulations. Therefore, it is desirable to install the pump that is new every 70-100 thousand mileage kilometers, in order to avoid problems.
But it happens that there is not enough money for the original pump. In this case, the drivers buy an alternative, most often a Chinese substitute, and then surprised why antifreeze boils. After some time, the pump gives leaking, which can lead to the destruction of its impeller and the ingress of plastic elements in the system of the power unit. Replace the faulty pump is expensive, but it must be done as soon as possible. It is not recommended to move on our own in this case. Cheaper to pay for the tow truck.
So we figured out the main causes of boiling and extrusion of antifreeze. As you can see, their huge amount. Often to identify and eliminate the problem is quite simple. But it is still necessary to observe a number of simple rules to help always maintain a motor cooling system in good condition:
- regular replacement of antifreeze;
- inspection of thermostat and air valve;
- outside and inside when replacing antifreeze;
- inspection of nozzles for defects in the form of cracks;
- replacing the pump along with the timing set.
Actually, nothing complicated, as well as add antifreeze into the system. But at the same time, non-compliance with the manufacturer's recommendation can lead to more serious problems.
Let's summarize
When overheating car engine force aggregate Maybe not fail. It all depends on the duration of riding at elevated temperature and constructive features Motor. For example, the engine with an aluminum unit is afraid of overheating more than others. Therefore, such a motor most often encloses when the critical temperature is reached.
Many motorists know how to add antifreeze, but it does not save it. After all, it is possible to sleep sooner or later. As practice shows, serious breakdowns happen at the most inappropriate moment. Slow the nozzle can be on the track away from home, and even the plug of the expansion tank does not give any warranty. What to do in this case? The main thing is not to panic. If the motor was not overheated, then serious consequences have already been avoided.
In order for such troubles, it is necessary to comply with the manufacturer's factory recommendations. It is advisable to buy only original spare partsAfter all, in 90% of cases they are the highest quality. Here you know why the antifreeze is boiling in an expansion tank, and what to do if such a problem occurs.
The main task of the coolant is to cool the engine while working and do not let it get out in the winter at a negative temperature. But what to do, if the antifreeze itself in the expansion tank boils? In our article we will try to understand this problem and answer the question of interest to you.
What can boil the cooler in the expansion tank
The main and even, can be said, "global" trouble, the cause of which can be boiling antifreeze in an expansion tank, is an engine overheating. It may be weak, medium and high. The consequences of it can also be the most different, up to the impossibility of correcting the breakdown in the motor. Thus, it is extremely important to ensure that the level and temperature of the cooler is normal.
What will happen if the engine will overheat
- Drinks may appear on the hoses and connections. In some cases, they can both break themselves.
- The radiator can flow cooling material.
- Increased oil consumption, his leakage.
- Damage pistons.
- The curvature and the occurrence of cracks on cylinder heads.
- The destruction of some engine elements and so on.
Causes of coolant boiling
- Very little toosol remained in the cooler tank.
- The fan that should cool the engine does not work.
- In the cooling system, air accumulation was formed.
- A poor-quality cooling material was covered in the tank.
- Environmental gasket.
- Various problems with the cooling system.
- Thermostat breakdown.
- It's time to replace Tosol.
Now consider in more detail every reason.
Non-good antifreeze
Antifreeze boils in an expansion tank if it is very small there. Remember that its level should not be lower than the corresponding mark. If the cooler ends, the fraction is still. But, know that use antifreeze of one class and colors. It is better to acquire the cooling material in accordance with the manufacturer's recommendations and the modern antifreeze and antifreeze and antifreeze simultaneously.
It is also worth considering the fact that if antifreeze unexpectedly "ended" may have occurred his leakage. Its reason should be found and eliminated.
Why did the leak appear? Antifreeze can flow through a microcracy, a hole or evaporate through a loosely closed lid of the expansion tank.
Faulty engine cooling fan
When the engine is heated to a certain temperature, the sensor fixes and the electrical fan power circuit is closed. When the temperature drops to the desired level, the sensor again "reacts" to this and open the chain. If the fan motor breaks or fails the sensor itself, then the sequence of actions will be interrupted, and, as a result, the car cooling process will not be carried out. We have already talked about the consequences of this. 
To find out, the antifreeze is boiling in the engine because of the cooling fan breakdown or not, you need to heat the motor so that its temperature slightly exceeds one hundred degrees. If the fan has not earned at this point, it means that the cause of overheating is most likely in it.
Airlock
If at least a small air bubble fall into the cooling system, it will interfere with the normal circulation of the cooler. This is possible if recently was replaced by Tosola.
Subcase cooling material
The reason for the boiling antifreeze in the engine may be that it is simply noticed, has been made by an unfair manufacturer and has very poor quality. Nowadays, unfortunately, no one is insured against fakes. therefore it is better to buy antifreeze in specialized storesrather than small layouts of hands or among market junk. So, in order to avoid further trouble, it is better to immediately buy a quality product and save on expensive repair due to faults caused by cheap fake.
Gasket burned
If the cylinder head laying is burned, it is quite possible to boil antifreeze. The reason for this is a violation of the integrity of the system responsible for cooling. If the engine is really overheated, then in the tank you will see small air bubbles, also the level of toosol will quickly decline.
Cause in the cooling system
- Used water pump of another manufacturer.
- Weak air flow.
- Contaminated radiator.
The solution to these problems is quite simple. If a pump is installed from another manufacturer, it is clear that its blades may not match necessary dimensions. This will lead to a small pressure in the cooling system. Therefore, an inappropriate water pump must be replaced.
Since the radiator is exposed to ambient, in particular, wind and sand, he can too much to pollute dust, small pebbles.
In this case, the dirt will interfere with the free passage of air through the radiator. To remove the interference, clean or wash the radiator. After that, everything will come to normal.
Broken thermostat
When the temperature reaches the mark in ninety degrees, the thermostat opens the valve and "runs" the cooler into a large circle of cooling system. If the thermostat does not open the valve, the antifreeze does not fall into a large circle, and it circulates only in small.
To find out if the thermostat is the reason that the tosol boils in the system, you need to check the temperature of the nozzles that begin a large circle. If they are not at all warm, then, most likely, the reason for overheating of the "heart" of the car is in the thermostat malfunction. Faithful decision B. this case It will be replaced.
The life of antifreeze ended
All cooling materials have their own operating capabilities. Over time, the substance existing in the cooler work out. therefore from time to time you need to pour new antifreeze . It's time to do this to do this will be evidenced by the change in its color.
So, if antifreeze boys in an expansion tank, the consequences can be the most deplorable, and the repair of the car is very expensive. We hope we were able to explain to you what could be the causes of this, and our article will help you resolve this problem.
October 24, 2017.The permanent boiling of fluid in the car cooling system should be perceived as a serious malfunction, since it threatens overheating the power unit. It is noteworthy that the phenomenon may arise due to small problems, but lead to the deposits, if you cannot fix the defect in a timely manner. Why boil antifreeze in the extensive capacity of the car and which ways to deal with a malfunction, is described in this publication.
About the operation of the cooling system
Without an understanding of the principle of the cooling system, it is difficult to diagnose the causes of problems and repair. The scheme is functions for this algorithm:
- While the motor does not warm, antifreeze (toosol) circulates along a small circle of cooling, including a water shirt, a stove and a thermostat. The level of fluid (abbreviated - coolant) in the expansion tank remains within the normal range.
- As the motor heated, the thermostat opens a large circulation circuit - through the main radiator. Antifreeze in the system expands and its excess is entered into the tank. The increasing pressure is poured by the bypass valve cover.
- Upon reaching 95 ° C, the entire liquid passes through the main radiator and expands to the maximum volume. The reset of its excess occurs through the additional upper radiator nozzle, so the impression arises that antifreeze boils in the container.
- The cooling of the power unit leads to the compression of the coolant to the initial volume and the pressure drop. In order not to occur, the expansion tank plug valve is admired the outer air into the system.
Reference. In some models, the car provides 2 reset of excess antifreeze into the tank - from the radiator and the salon heater.
Depending on the design of the cooling system, the valve cover is installed on the expansion tank or the neck of the radiator. In the second case, the discharge of fluid begins after exceeding a certain pressure, and the tank is constantly communicated with the atmosphere by means of a hole in the traffic jam.
Boiling due to overheating
To begin with, 2 concepts should be divided - boiling the coolant as a result of overheating and drilling antifreeze in the expansion tank. The first malfunction is accompanied by a temperature jump above 115 ° C (with such a heating, the coolant begins to boil) and arises due to the following reasons:
- the thermostat valve jammed in a serviced position, the liquid moves along a small contour and does not have time to cool;
- the sensor turned on the electric fan;
- cells of the main radiator are very clogged;
- the system formed an air traffic suspension that prevents normal circulation;
- the pump shaft broke or broke out, the pump impeller crumbled;
- antifreeze is too diluted with water boiling at 100 ° C.
If Zakipelpo cooler is one of the specified reasons, the engine overheats and can fail at any time. From the effects of high temperature, aluminum pistons are added in diameter and decrease the steel cylinder sleeves. The driver who has noticed the readings of the temperature of the cooler of the coolant and not drunk the motor, risks change piston group With a boring cylinders, sometimes - along with the crankshaft.
When you notice the critical jump arrow of the thermometer on the dashboard to a temperature above 110 ° C, immediately stop the engine and figure out the reasons for boiling and overheating. Premature overhaul - The pleasure is not cheap.
How dangerous is the drilling of antifreeze?
This phenomenon is considered the norm when the motor is heated to the operating temperature of 90-95 ° C, provided that there are no cooling fluid losses, dries outside the tank and other abnormal features. A part of the antifreeze circulating over a large circle is reset into the expansion capacity. An inexperienced motorist may seem that he boiled, although intensive reset is actually happening.
Important moment! Sign of serious danger to the motor - an increase in the temperature of the coolant. If the device does not show it, the overheating is excluded.
Not any drilling is harmless. If it occurs on a cold engine and is accompanied by side symptoms, there is a reason to check the condition of the cooling system. What do these signs and possible malfunctions look like:
- Antifreeze unexpectedly begins to spill 2-5 minutes after stopping the engine. Most likely, the problem is faulty valvebuilt into the radiator lid. When the circulation is terminated, the liquid in the cylinder head is quickly heated and increased in volume. Since the radiator valve is open, it rushes into the tank through the upper dumping nozzle.
- Drilling and drilling on the body of the expansion tank indicate the stuck plug valve. Air and steam break out out in weak place - on plastic thread, but can also "blow up" the container.
- Of exhaust pipe It goes white smoke in large quantities, the drums are visible on the cylinder block. The reason is the punctured gasket between the block and the head of the cylinders. Pressure pressure generated by pistons is transmitted to the cooling system, which is boils and boils antifreeze in an expansion tank.
Note. Often, a crack in the laying combines water canals with oil. Then a foam substance is noticeable in the container - the emulsion whipped pump.
It is not difficult to guess that the testing of the GBC laying is a critical fault that is subject to immediate elimination. Problems with covers and built-in valves are not so fatal, but lead to large losses of antifreeze and to the same overheating, which indicates the frequent fan turning on.
How to eliminate a malfunction?
When antifreeze in the expansion tank boils, and the thermometer arrow shows 110 ° C and more, you need to drown out the motor and check the following points:
- Try your hand the bottom of the radiator. If it remains cold, the problem lies in the thermostat. Give the engine to cool and slowly get to the garage or maintenance station. A faulty thermostat is subject to replacement, it is not amenable to repair.
- Uninterrupted in time the electric fan is connected directly to the battery and continue moving towards a familiar car electrician that can put an accurate diagnosis.
- Determine the degree of clogging of the radiator is unrealless without disassembling the system and dismantling the element. Check this version last.
- The jamming and breaking of the pump is accompanied by a sharp jump in the temperature of antifreeze and leakage of the hydrogen pump. The item will have to replace, go further unacceptable.
- Signs of air traffic formation are identical to the symptoms of the thermostat malfunction. Another thing is that it does not arise from scratch: Most likely, you unsuccessfully filled with antifreeze system.
To remove the air traffic jam, remove the hose at the upper point of the system (usually this unit throttle valve) And plot the liquids into the container until it flows from this nozzle.
Now about what to do with a faulty lid of the expansion tank or radiator. The best solution is to change the unsuitable element, the repair helps for a short time. At the same time, check the condition of the plastic container for cracks that can appear as a result of fluid pressure and steam. It is extremely undesirable to ride with the encinsampi valve.
The gasket between the head and the cylinder block is changing immediately. Mixture of oil and antifreeze do a lot of troubles, up to and destruction of the walls of the combustion chamber in diesel engine. Taking into account the laying breakdown is not always accompanied by a white smoke of the exhaust pipe, so follow the color and consistency of the coolant in the expansion tank.
If you happened to encounter boiling antifreeze on the road, check the system elements according to the instructions presented above. Three reasons will not allow their progress to get to a hundred - breakdown of the pump, crack in laying GBC. And full loss of fluid. In other cases, you can move, making stops in order to cool the power unit. When leakage of antifreeze, temporarily framed distilled water into the system.
