Where is the coolant temperature sensor Kalina. We learn to independently change Dzhu in Lada Kalina, without thinking. Lada Kalina Engine Cooling Scheme

From the end of the nineties, the domestic plant AvtoVAZ is engaged in the production of model Lada Kalina. Today, she, passing through numerous stages of modernization, reached a new round of its development. Neat and aesthetic, practical and quite dynamic, this car has conquered the hearts of a huge purchasing audience.

Now Kalina is one of the most sought-after and popular on russian market. But, of course, apart from the advantages of the model, a number of serious flaws are also observed. These include not the most best suspension, poorly coping with uneasy roads, vulnerable brake system, engine, the power of which remains much to be desired, and much more.

No smaller complaints cause such a simple and labeling device as a coolant temperature sensor. Here, the specified device most often fails, leading to other, more significant techniques. What is the coolant temperature sensor Kalina, what is its features?

The role of the cooling fluid sensor

Any engine needs a cooling system, since in the process of intensive work it is exposed to strong overheating, and the temperature inside the case sometimes reaches 250 ° C. The cooling system responds a small but very important electronic device - Cooling fluid temperature sensor, or DPET. The device gives a signal to electronic panel Control on the condition of the cooling system at a certain point.

According to the data that is highlighted on the control unit, the driver can judge the efficiency of the system and take action. The sensor is a resistor that works by increasing or decreased resistances, interconnected with temperature fluctuations. With increasing temperature, the resistance decreases, when cooled, on the contrary, becomes higher.

The device must be in the coolant. If its level drops significantly, the sensor begins to issue incorrect data, why all the chain reaction systems begin to fail. That is why it is so important to monitor the level of fluid to prevent technical problems.

The air temperature controller, as a rule, is located on the thermostat block, in rare cases it can be noticed on the head of the motor cylinder block. In the cars of the new sample, even two measuring devices for reliability occurs. The first fulfills the task of a responsible controller. electronic systemAnd the second is responsible for the efficient operation of the fan.

Principle of operation of Dzhto

Inside the engine, complex temperature fluctuations and voltage processes occur. When the temperature becomes below admissible, a rich mixture is required for normalization. If the scale rises above a certain tag, then, on the contrary, the enriched mixture can lead to disastrous consequences for the engine. With the normal functioning of Dzhop, all these data come to the dashboard in an ideal format, becoming excellent prompts of the wishes of the car addressed to the driver.

But in the case of a break, even the most microscopic, in the sensor wiring, these measurements are already produced in the violated format. As a result, when it is not necessary, the system submits the enriched mixture, which flows the fuel in the motor. The power unit begins to work in high mode for wear, the result of such a work is the high percentage of harmful exhausts into the atmosphere.

Another situation happens when a short circuit occurs in the sensor, then such a pulse is perceived by an electronic control unit as explicit overheating inside the power unit. Tuned in such a way to prevent overheating, the control system supplies a depleted mixture. Since there is really no overheating, the depleted mixture leads to ineffective engine operation, which is why it loses its power and stability. Outcome - breakdowns requiring repair.

Detection of the sensor fault and its replacement

Design Cooling System Lada Kalina
1 - expansion tank; 2 - reducing radiator hose; 3 - bulk hose; 4 - radiator; 5 - paro-discharge hose; b - driving radiator hose; 7 - electric fan; 8 - electrical fan housing; 9 - coolant temperature sensor; 10 is the coolant temperature pointer sensor; 11 - throttle assembly; 12 - coolant pump pipe bracket; 13 - coolant pump; 14 - coolant pump tube; 15 - Heater Radiator Supply Hose; 16 - reducing heater radiator hose; 17 - exhaust pipe; 18 - coolant pump pipe hose; 19 - Thermostat Case

To determine that the evaporator temperature sensor is in a faulty state, it should be done to start visual inspection, careful and consistent. Special attention It is necessary to give wires and their connections, since microscopic cliffs are most often happening. In addition, the deposits of rust, even in meager doses, can lead to breakage.

Cracks in the housing cause refrigeration fluid leakage, which is also bad. So, if there is dubious information about the cooling fluid level, if the motor begins to produce unnecessary failures, and after and it stalls at all, if the motor suddenly starts to lose power and handling, in 80 percent of cases it can talk about Sensor faults.

Therefore, to determine the localization of the breakdown, it is worth checking out this device first. In addition to these symptoms that the cooling fluid temperature sensor needs to be repaired, the following signs are signaling:

• on the idling The engine is unstable, the start is difficult, stopping;
• fuel consumption suddenly increases;
• the control lamp warns overheating.

Understand whether the interior temperature sensor is possible by checking the resistance and voltage. To diagnose, it is necessary to remove the sensor, then omit it into the water container, the temperature of which alternately change. In warm water, the voltage should vary from 3 to 1 W for 4-5 minutes. In addition to monitoring the sensor, other systems should be carefully checked.

Radiator and level of content of coolant. It is very important here to know that the radiator lid can be removed only when the motor has cooled, otherwise it is easy to get a serious burn. The tightness of the lid should also be checked. If the cover is notching, the air falls into the system, which leads to overheating of the motor and, as a result, distorted sensor data.

It is important to check the chemical composition of the coolant. The manufacturer in equal proportions combines water and antifreeze, but if something (as a rule, water) becomes greater, then there will be no so much benefit from the liquid as harm. Do not pour outdated liquid, which for more than 3 years, it loses its technical properties and becomes useless.

And last - it is necessary to monitor the fan's workability, which also depends on a lot. To dismantle the device for Doli viburnum, you must first disconnect the negative wire from the battery. Next, it is necessary to merge the entire coolant liquid. The third stage becomes disconnecting the wiring from the sensor. Now armed with a key to 21 and unscrew the device.

Installed New B. reverse order. Do not forget at the end of the job to fill the radiator with antifreeze. The temperature sensor changes only as a last resort, when it is just known that it is faulty. The verification of the device was stated in the previous paragraph. But sometimes the sensor changes with a functional state. When is it done? If you need to complete the bulkhead of the viburnum motor or its replacement.

Such changes are primarily reflected on the operation of the sensor, so in order to avoid possible difficulties and troubles, it is better to replace the device to a new one. In case of emergency overheating of the power unit and with the sensor, malfunctions occur. Therefore, repairing repair, do not forget to pay attention to the sensor.

Cooling fluid pump - paddle, centrifugal type, drives from pulley crankshaft Totcolten strap drive of the gas distribution mechanism. Pump housing - aluminum. Roller rotates in a double row bearing. Plastic lubricant The bearing is laid for the entire service life. The outer ring of the bearing will stop the screw. On the front end of the roller, a toothed pulley is pressed, on the rear - impeller. A stubborn ring from a graphite-containing composition is pressed to the end of the impeller, behind which the gland is located. In the pump housing, there is a control opening to determine the flow of fluid when the pump is output. Pump is recommended to replace assembly. The redistribution of fluid flow controls the thermostat.

Cooling system consists Of the two so-called circles of circulation:

1. The fluid movement through the cooling shirt and the radiator forms a large circle circulation.
2. Movement of the fluid on the engine cooling shirt, bypassing the radiator, is a small circle circulation.

Radiator heater Embed into the engine cooling system and is designed to heat the cabin due to circulation through it hot coolant.

Fansupports the thermal mode of the engine operation, turns on the relay along the controller signal.

Lada Kalina Engine Cooling Scheme

Basic data for control, adjustment and maintenance of the cooling system

For optimal temperature regime power plantWith which the power output is maximum, the cooling system corresponds. This system includes a cooling shirt radiator and nozzles for which liquid circulates. Circulation is provided by a pump whose drive is performed from the crankshaft.

The thermostat also includes a thermostat that provides fast engine warming due to the overlap of the pipeline going to the radiator, while the liquid circulates only inside the cooling shirt. When a certain temperature is reached, the thermostat opens the nozzle, after which the liquid circulates already big circlecomprising and radiator.

In the radiator, cooling the heated fluid occurs. For faster cooling fluid on the radiator, a fan is installed, which creates an additional air flow. But this fan does not always work, it turns on only when the fluid temperature is exceeded.

To perform coolant temperature control in this system, the coolant temperature sensor is turned on. The readings of this sensor are displayed on the dashboard, which provides the driver information about the temperature mode of the engine.

But this is not the main task of this sensor. Cooling fluid temperature sensor transmits temperature data on the electronic unit Control, after which this unit adjusts the supply of fuel depending on the temperature. With a cold engine, based on the readings of this sensor, the control unit sets the enriched mixture, after warming up the fuel mixture becomes normal. Even based on the readings of this element, the electronic unit adjusts the ignition advance angle.

So, the normal operation of the engine, fuel consumption depends on this sensor. It also activates the radiator fan. On some cars, a separate sensor is used to turn on the fan. It can be located both near the temperature sensor and in the radiator.

Construction, principle of operation

The design of this sensor includes a thermistor - a resistor that changes resistance from its surrounding temperature. This thermistor is placed in a metal housing with thread applied to it. The tail portion made from plastic is connected to this body. Contacts are located in this part to connect the wiring. One contact is positive and it comes from the electronic unit, the second is negative and it is connected to the mass.

In order for the thermistor to work, a voltage in 5 V is constantly fed to it. This voltage submits to it the electronic unit by means of a resistor having constant resistance. Since the thermistor of the coolant temperature sensor has a negative temperature coefficient, then with increasing temperature, it will decrease it, and the voltage supplied to it will also be reduced. Upon falling this voltage, the electronic unit calculates the engine temperature, and also displays its value to the dashboard.

The exact location of this temperature sensor in different cars is different, but slightly. It can be installed in the cylinder head near the thermostat body, or on the thermostat case itself. It is necessarily located near the discharge nozzle along which the fluid goes to the radiator. It is located near this nozzle in order to transmit accurate temperature data.

Signs of sensor malfunction

It is believed that this sensor is very reliable due to the comparative simplicity of the design. However, and with him there may be problems. Usually they are reduced to the disturbance of the graduation, which leads to impaired resistance and as a result of improper operation of the electronic unit, since part of its functions it performs, based on the engine temperature.

One of the most explicit signs The failure of this sensor is the lack of inclusion in the operation of the fan when the temperature is exceeded above the set value. But this indicator will not be reliable if there are two sensors - the main one to transmit the temperature value to the electronic unit, and the additional responsible for turning on the fan. In this case, it will not be included in the fan operation will indicate damage, wiring oxidation or failure of the sensor responsible for its operation.

On the modern cars A malfunction that signals the incorrect operation of the coolant temperature sensor is displayed on the display of the on-board computer. However, the fault message does not always indicate the failure of the sensor. Often, problems in its work are associated with the breakdown of wiring or oxidation of contacts.

The incorrect functioning of the coolant temperature sensor or the breakdown of its wiring leads to a fuel processing, high speed on idling, detonation. Perhaps that force aggregate It will be bad to start after warming up. The greatest trouble that can occur due to the inoperability of this sensor is overheating by the power plant, which may be the head of the cylinder block.

Sensor check

Checking the performance of this sensor is not difficult. But before producing it, it is advisable to check the integrity of the wiring going to it. You can also check the voltage running from the control unit. To do this, from the sensor you need to disconnect the chip with the wires and connect it to the voltmeter. After that, start the engine and measure the value of the voltage extending to the sensor, it must correspond to 5 V. If the voltage is normal, check the sensor to resistance.

To remove, check and replace the sensor, it will not be so much:

• Key on 19;
• Multimeter;
• Capacity for draining coolant;
• Electric kettle;
• Thermometer;

Before removing the element, you need to partially drain the liquid from the system. It is not necessary for the whole, because it is in the upper part of the engine, it is enough to merge to the level below the position of the sensor.

Then the sensor disconnects the wiring chip. It turns the key to 19 from his landing place.

Video: Checking the coolant temperature sensor

Check the sensor using an electric kettle with a thermometer and a multimeter translated into the resistance measurement mode. You can check in two ways.

1. With the first way, the working part of the sensor is immersed in an electric kettle with cold water, the thermometer is also placed there. You can use only an electronic thermometer capable of measuring high temperatures. The sensor itself is connected to the multimeter and the electric kettle is connected to the network. When the water temperature is raised, the sensor resistance will fall. So, at a temperature of water in +15 C, the resistance should be 4450 ohms. At +40, a multimeter readings should be 1459 ohms. It is necessary to heat the water to a temperature of 100 C. With this value, the resistance is minimal - 177 ohms. If values \u200b\u200bdiffer, it means that the sensor submits incorrect information.
2. The second method is suitable if there is no thermometer. To carry out measurements of resistance, the sensor is immersed in the water after it boils. At the same time, the water temperature will approach 100 s, approximately 95-97 degrees. This is enough to carry out measurements. After lowering the working part of the sensor on it, the resistance, which should be a little more than 177 ohms. If the difference is large, the sensor is faulty.

Cooling fluid temperature sensor replacement

The coolant temperature sensor is unrestracted, so when it is detected, it is simply replaced by it.

Video: Replacing the cooling fluid temperature sensor (DZH) VAZ 2115 (2113, 2114)

After purchasing a new sensor, it is desirable to immediately check the specified methods. If all the readings are normal, it is installed in the place of removed. Before screwing it into the landing place, the threads are treated with a sealant.

After installing a new element, a leash is connected to it, it is impossible to confuse the position of the chip, since it has special guide grooves. Next, the cooling fluid in the system is adjusted to normal. After it is necessary to check whether the fluid flows through the sensor, and after the engine is already running.

If the sensor replaces the sensor did not give any result, the engine continues, for example, overheat or does not gain due temperature, seek the cause in other elements of the system. It is possible that the thermostat does not work and the liquid is constantly circulating either by small or by a large circle.

Taras Kalenyuk

Reading time: 4 minutes

A.

Dug in Lada Kalina, as on any other vehicle, performs its special functions. They are in the removal of temperature indicators with a coolant and their further transmission to the ECU.

According to this data, the computer determines - how much enriched fuel is sent to the system, which turns to specify the engine for optimal work, and also finds out the need to turn on the fans.

In the car VAZ of this model, the engine is supplied with two engines.

It is worth knowing the difference in order not to confuse them with each other.

The first of them is the antifreeze temperature sensor itself. It is located in the area of \u200b\u200bthe thermostat and its sensitive element is immersed directly in the coolant.

The second sensor is the coolant temperature pointer - is located in the head of the cylinder block and transmits data to on-board computer.

The work of both devices is important, and their failure is able to deliver a lot of problems, especially if you do not accept the malfunctional measures on time.

Antifreeze heating detector makes it possible to monitor the following points in the engine operation:

1. activation of fans when you want to cool the motor;
2. adjustment of the ignition angle due to which the composition is optimized exhaust gasesthat allows you to minimize their destructive impact on the environment;
3. enrichment fuel mixes - Align the ratio of fuel to the air based on the engine heating level.

The device measuring the temperature of the antifreeze is a mechanism with a negative temperature coefficient.

What does it mean?

The operation of the thermistor is based on the transformation of thermal data in the resistance number, which are the less than the stronger the heating of the antifreeze.

Knowing these principles, you can personally check the efficiency of the instrument, having only a thermometer with a sufficient broad measurement scale and a universal measuring device (multimeter) at hand.

Symptoms are easy to recognize, but it is worth knowing that they do not always point to the breakdown of this particular sensor. These failures can also talk about a breakdown of the engine ventilation system, and damage to the wiring, and the flushing of contacts.

Lada Calina Temperature Sensor

Replacing temperature sensor

1. disconnect the wire block going to the sensor from the control system, after which the device itself is to unscrew using the key of the right size (on Kalina it is usually 19);
2. install the new and collect in the reverse order to the place of the appliance. It is worth considering that some detectors may have a weak thread. It is easy to compensate if you install a seal when installing the DRT, which will prevent antifreeze leakage through the gaps in the detector slot;
3. pour the coolant, connect the battery, start the engine and make sure that the repair has passed successfully, and the system works properly.

How to check the working capacity of Dzh?

In order to independently determine the health of the thermistor type measurement device, it is necessary to acquire a multimeter and a thermometer that can withstand high temperatures.

It is necessary to dismantle the instrument according to the instructions described above, then connect it to the multimeter precomposed to the module mode.

A coolant is poured into a pre-prepared container, the DPE and thermometer is placed there.

Antifreeze begins to heat up, and the owner looks at the resistance testimony on the Ommeter screen and on a thermometer, comparing data with a sign to assess the accuracy of the instrument. These instruments from different models may differ, so it is better to use the instructions attached to the available devices.

One remains unchanged - in devices with a negative coefficient, resistance indicators will fall with increasing temperature.

Outcome

Do not fear the repair of the car own. This will help to save money and time, as well as gain experience, which is an important factor.

The main thing is to strictly follow the instructions and comply with security techniques when working with similar devices.

Taras Kalenyuk

Reading time: 3 minutes

A.

VAZ automotive plant, began production of Lada Kalina from the end of the 90x. New outreach models are issued now, however, the car is still many weak places, among them and the engine and suspension and even the cooling fluid temperature sensor.

It is believed that Lada Kalina was going on the principle, "cheaper and more accessible." It does not mean that the car is bad or not worth his money, on the contrary. Just buying it needs to be understood that it is better to replace immediately or be prepared for the replacement of these parts. To understand whether to change the Dzh, it needs to be understood.

How does the DPU?

The coolant temperature sensor provides the cooling required for any motor. Of course, not myself, but it removes the necessary temperature measurements and transmits them on the on-board computer, which in turn and regulate engine cooling operation.

The EU is usually installed so as to have contact with the antifreeze included in the engine. The path of antifreeze is tortuous and runs through the same route. He visits the engine, cooling it and at the same time heating himself. Further, the cooling fluid at the outlet from the engine passes through the radiator tubes, blowing on the oncoming flow of the air and cooled. After cooling, it is again heading for the engine, where it is intercepted by the detector measuring its temperature.

If the temperature is shown above the valid mark, it will be a signal that the radiator does not cope with cooling and it needs help. It is the decision to help and take the car that receives the overheating data. Additional fans will immediately be launched, which will be coated with antifreeze.

In the event of a malfunction or absence of the sensor, the ECU will automatically decide on constant additional cooling. Without having your own "eye" in the engine, it will be forced to try to cool always, just to avoid overheating. As a result, all systems will wear out. The engine itself will start worse. Throw. And fuel consumption increase by about 15-30% of the normal.

Obviously, it is impossible to neglect the operation of the meter, and in the event of a malfunction you need to replace it immediately.

Kalina 2.

Lada Kalina the second version, by and large from the predecessor differs only by complete restyling. Appearance has undergone many changes as well as the interior design, however inner world remained the same. "Kalina 1 Temperature Sensor remained in its place, although it was added to him from the salon proudly called" Temperature Sensor Kalina 2 ". He came along with new system Air conditioning.

Lada Kalina second version

In general, the new car has a claim to the class of the car above the predecessor, and in comfort it can be said that the complaint is reasonable. Inside, Kalina 2 has the usual 8 and 16 valve engines. The presence of the same number of the valve at the predecessor does not yet cause anxiety, but suspicions begin to custody.

Further more, all the same drum rear brakes, hard suspension, problems in the cabin. However, there are many corrected problems of viburnum 1. With regards to sensors, almost complete interchangeability between the viburnum.

As a result, if you decide to replace the first version of the car, on the second, but at the same time just recently acquired a new high-quality part for it, do not hurry to upset about this. Almost probably she will fit new Machine, when the time comes.

Malfunction and repair

The first fault signals will be:

1. problems with the "cold" launch of the car;
2. periodically stalls the engine;
3. fuel consumption is increased;
4. the temperature alarm indicator is on;
5. inadequate temperature readings on the dashboard.

Faced with one or more problems from the list it is necessary to deal with what cause is more in-depth. Opening the Hood of Lada Kalina, it should be inspected for the object of the coolant. One of the main reasons for the malfunction of the meter can be an insufficient level of antifreeze or its leakage. Making sure that the flow is missing, additionally make sure that the level of antifreeze corresponds to the necessary, in the event of a shortage of the framed liquid.

The next step will be checking contacts and electronic chains. Over time, the wiring is wear out, the contacts rust and oxidize. May even elementarily blocked. It is necessary to clean them, and make sure that the electronic chain works properly.

Only after the first two steps of the primary inspection can be processed to the inspection of the meter itself.

In Kalina, as in many vases, the detector is installed on the thermostat. However, it should be borne in mind that two DTGEs are installed at once. One is connected only with dashboard and is informative. The other is associated with an electronic chain with the ECU, it is the main one.

Disassembly and inspection are carried out as follows:

• first of all it is necessary to de-energize vehicle and drain the cooling fluid, only after that you can proceed to the direct dismantling;
• next, disconnect the connecting wires from the meter. Inspect them and clean them;
• unscrew the sensor itself, you may need a deep head for this;
• after driving the detector, clean it and check the job. This is usually done by immersion of the sensor into a glass with water, then heating it, then cooling and measuring the resistance of the meter;
• in the event of a malfunction of the old sensor, it is necessary to buy a new one, since it is not subject to repair;
• installation of a new or old working device is made in the reverse of it to dismantle the order. Remember that the sensor is obliged to have a sealing ring (if it is an old meter, purchase a new seal for it) additionally you can use the sealant;
• check the operation of the device when the car is running, as well as make sure that the antifreeze does not suit the system.

Outcome

Dzh is not the detail with which it is worth joking or forget about it. It makes sense to buy a spare such part immediately when buying a car. It is not expensive, but saves the possible funds for the overrun of fuel and repairing the "car" significantly.

Engine temperature sensor Kalina is needed to work its entire system. If there was no spare part, and the device has failed on the road, it is allowed to replace it with a fellow communicating with the dashboard. Such a temporary solution will allow you to get to the repair point without adventure.

The main thing in the car is still the meter remains that communicates with the ECU. The second only keeps you personally informed the events. Although considering that in the critical situation, it is the second one who can be a wrecker, do not forget about his timely replacement.

As the last recommendation, I want to stipulate another detail. Many are added to the cooling system instead of a specialized fluid, ordinary or distilled water counting that they are so deceived by the system and save money. In fact, such people are cheating only themselves.

The pouring of distilled water is an extreme measure at the moment when there is no access to normal antifreeze. Even the one-time use of such water already causes irreparable damage to the cooling system. Ordinary water It has a property to influence the cooling system mechanisms, cause rust in it, fall into a heavy precipitate in the tubes. All this scores the system, spoils, and ultimately kills. Always use only a specialized coolant and do not forget to replenish its level.