He laid the foundation for a whole family of cars. Some of them are produced to this day. This model range high reliability and relative ease of execution are inherent, which is one of the main reasons for the high popularity of the car. At the same time, conditionally long-term operation revealed a number of significant shortcomings. One of them is the cooling system.
It works great on a relatively new car, however, as soon as the service life exceeds 10 years, failures appear in its operation. They end up looking the same. The arrow of the device indicating the temperature invariably creeps up. There may be several reasons why the VAZ 2110 engine is heating up, and this problem requires detailed consideration.
Vehicle cooling system
The cooling system is made according to the classical scheme. The circulation of the coolant is carried out in large and small circles. Its transition from one circle to another is carried out automatically using a thermostat. Antifreeze cooling takes place in a radiator, which is made of aluminum for better heat transfer.
To prevent overheating of the engine during long-term operation in low gears, the car has a fan that turns on automatically when the temperature reaches a certain value. The main causes of a malfunction of a VAZ 2110 car:
- thermostat failure;
- the fan does not work;
- airlock;
- low coolant level;
- dirty engine surface.
Any of these reasons can cause the engine to overheat. As a result, the machine will lose a significant part of its power.
Thermostat and Fan Faults
A symptom of a malfunctioning thermostat is a sudden increase in temperature for no apparent reason. That is, the car engine was running normally, there was no long standing in traffic jams and movement in first gear, and the arrow of the device was close to the critical mark. Why is this happening? The fact is that, as a rule, the thermostat is stuck in the closed position.
The liquid in this case continues to circulate around the radiator, which is not enough to cool the engine. Determining whether the thermostat is really to blame is very simple. It is necessary to warm up the engine to a temperature of 90 ° C. Now you should evaluate the temperature of the pipe that goes to the radiator. If it is cold, the thermostat must be replaced.
Unlike the previous case, engine overheating is preceded by long-term operation on low gears. In this mode, the VAZ 2110 radiator does not have sufficient airflow, and when the temperature reaches 95 ° C, a sensor is triggered that turns on the fan. If this does not happen, engine overheating is inevitable. Such damage is complicated by the fact that malfunctions, in addition to the fan itself, can occur in its power circuit.
As a special case, a blown fuse should be mentioned. 
If the fan motor starts to spin when the contacts are closed, the sensor is faulty. If not, then the fuse is probably the cause and needs to be checked. If it is in good condition, further repairs require skills and the availability of a special device, so it is better to contact a specialist.
Engine overheating is not uncommon for a car like the VAZ 2110. Mostly this problem occurs in cars with high mileage. Although relatively new specimens should not be ruled out overheating of the motor.
Mileage is often the culprit. As the car is used, parts wear out, systems gradually become unusable.
Common Causes
As you know, the VAZ 2110 is equipped with two types of engines - with 8 and 16 valves. There are several main, most common reasons due to which this very overheating of power units occurs.
Let's look at each of the causes and how to fix these problems separately.
Low coolant level
Coolant plays a huge role in the operation of the cooling system. A special substance, namely antifreeze or antifreeze, is poured into the expansion tank.
Related material:
In a normal situation, the level of the coolant should be at the level of the MAX mark on the reservoir body. This indicates that the tank is about 50-60 percent full.
If there is no such mark on the tank, focus on the clamp. The liquid should reach its upper edge.
- If the engine overheats, try simply adding the missing amount of coolant so that it is at the optimum fill level.
- If you have not changed the coolant for a long time, it is better not to add fresh coolant, but simply replace it completely with a new coolant.
- Choosing between antifreeze and antifreeze, most owners of the VAZ 2110 prefer the first. And mainly because of the financial availability of antifreeze. But in practice, antifreeze is better. Its one of the most important advantages is that the substance does not freeze when severe frosts. For individual regions of our country, this is a key factor in choosing an coolant.
Thermostat
Another cause of engine overheating is a stuck thermostat valve. If it remains in the closed position and does not open, the coolant will only move along a small circuit. As a result, it will lead to strong heating power plant. Overheating itself threatens with very, very serious consequences.
Such a malfunction can manifest itself at the most inopportune moment - on the road. It is unlikely that you will be able to perform high-quality repairs on the side of the road.. But one method you can try is to knock on the thermostat housing. Often this allows you to return the device to its working capacity for a while. So you can get to your own garage or the nearest station Maintenance. The thermostat has been replaced with a new one. There is no point in repairing it. If he failed once, the situation will certainly repeat itself soon.
Related material:
temperature sensor
The temperature sensor is required in order to respond to changes in engine temperature. When the set point is reached, the sensor is triggered and turns on the cooling fan.
If this device malfunctions, overheating occurs power unit because the fan is not activated. Consequently, the temperature does not fall below critical levels, but continues to rise gradually.
Related material:
If such a nuisance caught you on the way ( most often the motor overheats when in traffic jams, since the engine is running, and there is no flow of cooling oncoming air ), try to quickly leave the traffic jam, find a free section of the road.
On a free stretch, accelerate, and then start braking with the engine. So the temperature will decrease, overheating will not occur. In no case should the car be regularly operated in this way. But it's a great way to get to a garage or auto repair shop, determine what's wrong with the sensor, and then replace it.
Cooling Fan
The symptomatology of fan malfunctions is similar to a non-functioning temperature sensor. That is, the engine will warm up, the pointer to dashboard will be in the red zone.
Despite the fact that such a car is characterized by high reliability, after 10 years of operation, individual components begin to fail. When the VAZ 2110 injector 8 valves heats up, the reason lies in the cooling system. The temperature sensor indicates that the engine temperature is exceeded.
The main causes of overheating
The classical cooling scheme consists of a large and a small circuit, through which antifreeze circulates. The thermostat performs a regulating function, directing the liquid in the desired circle. It is cooled in a radiator made of aluminum. The fan built into the system turns on while the car is running on low revs, helping to maintain the necessary degrees.
When the VAZ 2110 engine is warming up, the reason lies in the following malfunctions:
- the thermostat is broken;
- the fan is out of order;
- an air lock has formed in the cooling system;
- insufficient coolant level;
- boiling antifreeze;
- dirty engine.
Each of these reasons can be the main reason why the VAZ 2110 engine starts to overheat. As a result, the machine loses power.
Thermostat failure
If the VAZ 2110 injector 8 valves heats up, the reason may lie in a faulty thermostat. There is a jamming of the node. As a result, the circulation of the liquid stops at any temperature. Often such a breakdown is caused by the fact that the VAZ 2110 car is warming up for a long time at idle. The warm-up time should not exceed 10 minutes. It is allowed to move the car immediately after turning it on, provided that the first few kilometers it will be given a gentle mode.
Thermostat: 1-bypass valve; 2-outlet pipe (to the pump); 3-spring of the main valve; 4-main valve; 5-piston holder; 6-piston; 7-inlet pipe (from the radiator); 8-rubber insert; 9-solid heat-sensitive filler; 10-bypass valve spring; 11-inlet pipe (from the engine). The thermostat can be checked directly on the engine. The order of work is as follows:
- The engine starts.
- The arrow of the device starts moving up.
- The radiator pipes located under the hood, top and bottom are checked. If the lower one becomes warm before the arrow of the device starts to move, then the thermostat is stuck in the open position. When it is permanently closed, the lower outlet remains cold at any temperature.
You can also check the thermostat with its dismantling and understand why the VAZ 2110 8 valve engine is heating up . To do this, the device is removed from the engine and placed in a container of water. This, perhaps, is any saucepan that is put on fire. After boiling the liquid, the valve should open. If this does not happen, then the knot is jammed. It is beyond repair. Its replacement is required.
If the VAZ 2110 injector 8 valves heats up, the reason may lie in a non-working fan. This is a vehicle node, the function of which is to cool the liquid in the radiator. The signal to turn on the motor is given by the sensor. This happens when the temperature exceeds the allowable threshold.
If the fan fails, then the VAZ 2110 car with the injector starts to warm up for the following reasons:
- Stuck thermostat valve. The coolant will constantly circulate only in a small circle, without going into a large one. Antifreeze will stop flowing into the radiator and will not reach the temperature sensor. As a result, the antifreeze will begin to boil.
- When the VAZ 2110 engine starts to warm up quickly, the reason may lie in the faulty drive of the fan itself. For the purpose of testing, it is connected directly to the battery. If it does not turn on, then the drive needs to be repaired.
- Before starting to test the drive, it is necessary to inspect the fuse. His mark is F-7. The operation of the element is checked with a multimeter. The burnt part is replaced with a new one.
- Fan relay failure. To get to it, you need to remove the cover of the center console in the mounting compartment. The cooling relay is on the left side. It can only be checked by installing a new element. Then the VAZ engine warms up and the new part is monitored.
- A broken wiring causes the fan to turn off. The place of the gap is located with the help of a tester. A new wire is being laid in this section.
Air lock in the cooling system
When the antifreeze boils in the expansion tank of the VAZ 2110, the reason may be an air lock.
Engine cooling system VAZ-2110 (with carburetor): 1 - heater radiator; 2 - steam outlet hose of the heater radiator; 3 - outlet hose; 4 - inlet hose; 5 - coolant temperature sensor (in the block head); 6 - hose of the supply pipe of the pump; 7 - thermostat; 8 - filling hose; 9 - cork expansion tank; 10 - coolant level indicator sensor; 11 - expansion tank; 12 - outlet pipe; 13 - liquid chamber starting device carburetor; 14 - outlet hose of the radiator; 15 - radiator inlet hose; 16 - steam outlet hose of the radiator; 17- left tank of the radiator; 18 - sensor for turning on the electric fan; 19 - fan motor; 20 - electric fan impeller; 21 - right radiator tank; 22 - drain plug; 23 - casing of the electric fan; 24 - toothed belt drive of the gas distribution mechanism; 25 - impeller of the coolant pump; 26 - inlet pipe of the coolant pump; 27 - supply hose to the liquid chamber of the carburetor starting device; 28 - outlet hose. It appears in the following circumstances:
- the replacement of the coolant was carried out in violation of the technology;
- in case of engine overheating;
- when the system is depressurized.
To eliminate the cause due to which the VAZ 2110 engine is heating up, you need to remove the plug from the system.
This is done in several ways:
- The cover of the expansion tank opens. Looking for two hoses that lead to the radiator. They are located at different heights. They are pressed sharply to remove air. The cover is put in place and the car starts.
- The car sets up on a hill. The front of the car looks up. The steeper the slope, the better. The engine starts and 2-3 minutes. running at idle. If this does not bring results, then the procedure is repeated. In this case, several peregasov should be done. After that, antifreeze is poured up to required level.
- Most effective method removal of the plug is the disconnection of the fluid outlet hose. To do this, the clamp is loosened, and the hose is removed from the fitting. If the liquid does not flow, then the cork is present. After that, antifreeze begins to pour into the tank. This is done until it appears in the hole in the hose. If this does not happen, the engine starts and fluid is expected to appear. Once she runs, it's evidence of elimination airlock.
Insufficient coolant level
The reason why the VAZ 2110 injector 8 valves is heating up is often the insufficient level of antifreeze in the barrel. This happens due to fluid leakage. The reasons are the wear of the rubber pipes in the system. Despite the stability of the material, it loses its properties over time. Antifreeze begins to flow through the cracks. A decrease in the liquid level causes an increase in temperature. As a result, the antifreeze at the VAZ 2110 boils and splashes out of the expander plug.
Sometimes the problem lies in the tank itself. Its production is not always carried out in accordance with the technology. If the walls are thin, then there is a possibility of cracks forming on the surface. Sometimes the reason lies in a poor-quality cork. Chips on the threaded part create a leaky connection.
Boiling antifreeze
If the antifreeze boils in the expansion tank of the VAZ 2110, the reasons may be as follows:
- Fluid enters through the head gasket. Antifreeze traces are clearly visible on the dipstick. Also, the smell of gases is heard from the expansion tank. The seal needs to be changed immediately.
- Poor quality antifreeze. Dilution of the concentrate with water should only be done by the manufacturer. Self-addition may result in incorrect concentration.
- Loss of antifreeze properties. This happens after 2 years of operation of antifreeze. It becomes oily, changes color. The fluid must be replaced.
If the VAZ 2110 injector 8 valves boils, then the cause is a dirty engine. After a long run, a film of oils forms on the metal. When the car is moving, dust gets under the hood, which, together with the oil film, forms a dense layer. As a result, blowing the engine with an air stream does not work.
To solve this problem: the engine must be kept clean. All connections must be constantly checked and, if necessary, sealed. Often the radiator is clogged with dirt, which stops passing air. It needs to be cleaned from time to time.
If the engine in a VAZ car starts to warm up, you should know that there are main causes of the malfunction. With sudden heating, the thermostat valve may have jammed. When such a problem exists for a long time, the malfunction must be sought in the system itself. This may be its clogging, the presence of an air lock or a problem in low-quality antifreeze.
Engine flush tests
Coolant Overheat Alarm
Most vehicles are equipped with a thermal sensor that measures the operating temperature of the engine. If the overheating alarm comes on while driving (or the temperature indicator needle goes into the red hot zone), the coolant temperature is between 120°C and 126°C. This temperature is still below the boiling point of the coolant (provided that the cooling system and the coolant seal are in good condition). If the coolant overheat warning light comes on, do the following:
Step 1. Turn off the interior air conditioner and turn on the interior heater. This will help to remove excess heat from the engine faster. Set the fan to top speed rotation.
Step 2. If possible, turn off the engine and allow it to cool (this may take more than an hour).
Step 3. Never try to remove the radiator seal until the engine has cooled down.
Step 4. If the overheating alarm is on, you must not continue driving, otherwise the engine may be seriously damaged.
Step 5. If the engine does not blaze with heat and is not clearly overheated, then it is possible that the problem is related to a malfunction of the temperature sensor or temperature indicator. Then you can continue driving, but for reinsurance it is necessary to stop from time to time to check if there are signs of engine overheating and if there are any signs of coolant leakage.
COMMON CAUSES OF ENGINE OVERHEATING
Low coolant level.
Clogged, dirty or blocked radiator.
Faulty fan drive clutch or faulty electric fan.
Incorrectly set ignition timing.
Low oil level in the engine lubrication system.
Broken fan drive belt.
Faulty radiator cap.
Coolant freezing (in frosty weather).
Faulty cooling water pump
(slippage of the impeller on the inner shaft of the pump).
The owner has complained that his car's engine is overheating, but this only happens when he is driving at high speeds on the freeway. The car was equipped with an engine that worked flawlessly when driving in the urban cycle.
The mechanic flushed the cooling system and replaced the radiator seal and water pump, believing that the cause of the overheating was a decrease in coolant flow in the cooling system. During a further check, it was revealed that when the engine was cranked with a starter with the spark plugs unscrewed, coolant was sprayed from one of the cylinders. The problem was fixed after the cylinder head gasket was replaced. It is clear that the leakage caused by a gasket defect was not large enough to cause a malfunction of the engine - as long as the speed and load on the engine did not increase so much that the increase in coolant leakage and heat generation caused by them did not lead to a rapid increase in temperature.
The mechanic also replaced the oxygen (0 2) sensor, because the coolant contains organosilicon compounds and silicates, which, once on this sensor, usually poison it. Sensor degradation may have contributed to this failure.
Rice. 7.42. In the mid-1980s, many manufacturers began to use V-ribbed belts (a belt with V-shaped longitudinal ribs instead of transverse teeth). Older water pumps will fit on the engine, but they may turn in the opposite direction to what they should. This may cause the motor to overheat after the pump has been replaced. If you install the wrong type of fan, then the angle of attack of its blades will not correspond to that required to create the necessary air flow through the radiator
The condition and correct installation of the cooling system is of great importance for the correct operation of the cooling system. drive belt. The tension of the drive belt has a decisive influence not only on the operation of the water pump, but also on the alternator, air conditioning compressor and other belt-driven units. When replacing a belt or adjusting its tension, be sure to measure the belt tension with a belt tension meter to check that it corresponds exactly to the required one.
Materials: http://vaz-rukovodstvo.ru/2110/peregrev-dvigatelya.html
Overheating of the engine is not uncommon for a car like the VAZ 2110. Mostly this problem occurs in cars with high mileage. Although relatively new specimens should not be ruled out overheating of the motor.
Mileage is often the culprit. As the car is used, parts wear out, systems gradually become unusable.
As you know, the VAZ 2110 is equipped with two types of engines - with 8 and 16 valves. There are several main, most common reasons due to which this very overheating of power units occurs.
Let's look at each of the causes and how to fix these problems separately.
Tens engine
Low coolant level
Coolant plays a huge role in the operation of the cooling system. A special substance, namely antifreeze or antifreeze, is poured into the expansion tank.
In a normal situation, the level of the coolant should be at the level of the MAX mark on the reservoir body. This indicates that the tank is about 50-60 percent full.
If there is no such mark on the tank, focus on the clamp. The liquid should reach its upper edge.
- If the engine overheats, try simply adding the missing amount of coolant so that it is at the optimum fill level.
- If you have not changed the coolant for a long time, it is better not to add fresh coolant, but simply replace it completely with a new coolant.
- Choosing between antifreeze and antifreeze, most owners of the VAZ 2110 prefer the first. And mainly because of the financial availability of antifreeze. But in practice, antifreeze is better. Its one of the most important advantages is that the substance does not freeze in severe frosts. For individual regions of our country, this is a key factor in choosing an coolant.
Thermostat
Another cause of overheating of the motor is a stuck thermostat valve. If it remains in the closed position and does not open, the coolant will only move along a small circuit. As a result, this will lead to a strong heating of the power plant. Overheating itself threatens with very, very serious consequences.
Such a malfunction can manifest itself at the most inopportune moment - on the way. It is unlikely that you will be able to perform high-quality repairs on the side of the road.. But you can try one method - tap on the thermostat housing. Often this allows you to return the device to its working capacity for a while. So you will be able to get to your own garage or the nearest service station. The thermostat has been replaced with a new one. There is no point in repairing it. If he failed once, the situation will certainly repeat itself soon.
thermostat in engine
temperature sensor
The temperature sensor is required in order to respond to changes in engine temperature. When the set point is reached, the sensor is triggered and turns on the cooling fan.
If this device malfunctions, the power unit overheats because the fan does not activate. Consequently, the temperature does not fall below critical levels, but continues to rise gradually.
If such a nuisance caught you on the way ( most often the motor overheats when in traffic jams, since the engine is running, and there is no flow of cooling oncoming air), try to quickly leave the traffic jam, find a free section of the road.
On a free stretch, accelerate, and then start braking with the engine. So the temperature will decrease, overheating will not occur. In no case should the car be regularly operated in this way. But it's a great way to get to a garage or auto repair shop, determine what's wrong with the sensor, and then replace it.
Cooling Fan
The symptomatology of fan malfunctions is similar to a non-functioning temperature sensor. That is, the engine will warm up, the pointer on the dashboard will be in the red zone.
Again, while on the road, We recommend using the engine braking method. Next, head to the garage. Let the car cool down. In the meantime, go to the store for a new fan. This device for the VAZ 2110 costs about 600 rubles.
Fan problems
Other reasons
There are other equally popular causes of engine overheating. Therefore, we suggest that you familiarize yourself with all of them according to our table.
Coolant level too low
Add coolant to the desired level, guided by the risks or the clamp on the expansion tank
Clogged or blocked radiator
Flush the radiator. If this does not help, the unit must be replaced
The cooling system pump has failed (the impeller slips on its inner shaft)
Best to replace the pump
The oil level in the lubrication system is critical
Add oil to the required level. If it is old, change the oil
Ignition timing incorrectly set
Perform torque adjustment
The thermostat is out of order
Replace the device with a similar new one
Cooling fan motor failed
It is subject to repair, but it is better to install a new motor
Faced with such a phenomenon as engine overheating, do not rush to send your VAZ 2110 for repair to a car service. Many causes of overheating can be found with your own hands, and you can also deal with them yourself. Service stations are not cheap these days, unfortunately.
Click to cancel reply.
All about 2109
How to remove and clean the nozzles on the VAZ 2109 (injector)?
Causes of overheating of the engine on the VAZ 2109 (carburetor, injector)
It's no secret that the engine is the main unit of the entire car. Your ability to drive a car, consume the optimal amount of fuel and more depends on its performance. But overheating is a very common situation in which many people make serious mistakes.
Repair of the exhaust manifold on the VAZ 2109 (carburetor)
The exhaust manifold is a component exhaust system, which performs the process of removing exhaust gases from the cylinders of the power unit into the exhaust pipe.
Materials: http://luxvaz.ru/vaz-2110/153-greetsya-dvigatel.html
Post edited. ich: 04.10.2006 - 22:10
Everything is clear here, either there is or not, if there are no or few shares.
On a hot engine, touch the temperature of the radiator with your hand; if it is cold, change the thermostat. If hot, touch the inlet and outlet hoses and shake them like a pear.
There is a thin hose in the expansion tank, when you press the gas, antifreeze (quite plentifully) should pour out of it into the tank, if this does not happen, the pump needs to be replaced.
Z.Y. First of all, change the temperature sensors (there are 2 of them), you will change, buy in Automobiles on Ostrovsky in the department of "imported spare parts for our brands." I had such a buggy one of the sensors.
So I think it works for you!
You can also see what color your antifreeze is, if there is a lot of rust in it, then you need to rinse it, otherwise there will be problems, maybe already !!!
There are special tools for flushing the cooling system.
If necessary, I will explain. Write in private!
The car is 5 years old, everything was OK and suddenly began to overheat. It gets to the point that the food is 90-100 and the temperature is about 110 degrees and the fan is working.
after the thermostat all pipes are hot.
Should I change the thermostat anyway?
Post has been editedmiracle: 17.05.2007 - 11:15
Yes, change. He jammed in a half-open state. There is simply not enough circulation through the radiator.
Everything will come out of the head.
The pump pumps (antifreeze comes from the steam pipes)
And maybe someone else has a picture of the thermostat assembly 21082-1306010
Change coolant at the same time
If the injector, duck there hardware can lower the temperature on the vent.
added to 1179475829
Attached images
Post has been edited by miracle: 05/18/2007 - 04:07 PM
Up to 95 degrees, the pipe G is hot. X-cold. All other pipes are hot. After 95 degrees, port X gets hot too.
How did you determine at what temperature the thermostat valve opens? The Murzilka says that the valve should open at a coolant temperature in the range of 87-92 degrees. Therefore, in this case, it depends on the accuracy of your measurements whether the thermostat needs to be dug further, or whether it is in order.
Materials: http://teron.ru/index.php?showtopic=92066
At the first signs of overheating, if the arrow of the temperature gauge has gone into the red zone, but no clouds of steam escape from under the hood, turn on the maximum interior heating mode (see "Automatic heater control system"). This is necessary in order to reduce the temperature of the coolant in the engine cooling system.
Turn on the hazard warning lights, depress the clutch pedal and, using the car's momentum, try to carefully move to the edge of the carriageway and stop as far to the right as possible at the curb, and if possible, outside the carriageway. Let the engine run for a couple of minutes at normal speed. idle move with the heater turned on at full power.
WARNING
Do not stop the engine immediately! The only condition is to maintain the tightness of the cooling system. If a hose has burst or jumped off or another leak has formed, in addition to the ejection of fluid from under the expansion tank plug, the engine will have to be stopped immediately!
After the overheated engine stops, local overheating of the coolant begins at the points of contact with the most heat-stressed engine parts and the formation of vapor locks. This phenomenon is called "heat stroke".
1. Stop the engine.
2. Open the hood and inspect engine compartment. Determine where the steam is coming from. When inspecting the engine, pay attention to the presence of coolant in the expansion tank, the integrity of the rubber hoses, radiator, thermostat.
WARNING
Never open the expansion tank cap immediately. The liquid in the cooling system is under pressure, when the plug is opened, the pressure will drop sharply, the liquid will boil and its splashes can scald you. If you want to open the cap of the expansion tank on a hot engine, first put a thick thick rag on top and only then carefully unscrew the cap.
USEFUL TIPS
The expansion tank plug valve plays an important role in ensuring optimal temperature conditions. It maintains an excess pressure of at least 0.1 MPa (1.1 kgf/cm2) in the system. In this case, the boiling point of water rises to 120 ° C, and antifreeze - up to 130 ° C. Unfortunately, when the valve is stuck in the closed position during overheating, a significant excess of overpressure occurs - more than 0.2 MPa (2 kgf / cm2), which can lead to a rupture of the expansion tank or a breakdown of one of the hoses.
3. Look under the dashboard on the passenger side and find out if there are any leaks or traces of coolant flowing from the heater radiator under it.
If coolant leaks are found, the burst hose can be temporarily repaired with adhesive tape.
USEFUL ADVICE
Reinforced (usually silver-colored) adhesive tape, which can be purchased at car dealerships, is especially suitable for this purpose.
A leak in a radiator, thermostat or heater is quite difficult to fix on the spot, so in such a situation it is necessary to add water to the cooling system and carefully monitor the temperature gauge while driving, periodically restoring the level in the cooling system.
WARNINGS
Prolonged use of water instead of antifreeze leads to the formation of scale in the engine cooling system, deterioration of its cooling and, as a result, a reduction in the resource.
Never add cold water to an overheated engine. The engine must cool down open hood at least 30 min.
4. The engine can overheat if the thermostat fails, which controls the flow of fluid in the cooling system through or past the radiator (to speed up the warm-up of a cold engine). To check the thermostat, on a warm engine, check by touch the temperature of the hose connecting the thermostat housing to the radiator. If the hose is cold, the thermostat is faulty and there is no circulation through the radiator.
5. Very often, the cause of overheating of the engine, the cooling system of which is equipped with an electric fan, is the failure of the fan. Start the engine, monitor the temperature and note if the cooling fan turns on when the engine overheats.
6. If the fan does not turn on, the fuse may have blown, the turn-on relay is faulty, the electric motor is burnt out, or the wiring is faulty.
7. Check the integrity of the wiring, the reliability of the connection of the electrical connectors.
8. If the wiring is OK, check the fuse and replace it if it is defective.
9. If the fuse is good, try replacing the fan relay.
11. If the electric motor started to work, the wiring is faulty; if not, the wiring or the motor itself is also faulty. The relay and the electric motor are not repairable, replace them as an assembly (see section 9 "Electrical equipment").
NOTE
It is allowed to get to the place of repair with a direct connection to battery electric motor. Upon arrival, do not forget to disconnect the electric motor from the battery, otherwise it will lead to its discharge.