Priora engine temperature scale 16 valves with air conditioning

A car engine is equipped with a cooling system that contains liquid. The temperature of this liquid is measured by a sensor. This value that it records is the engine operating temperature (ERT). The data recorded by the sensor is displayed on the dashboard. The average operating temperature of a Priora car engine is 95 degrees. This indicator is optimal when the car is moving at a speed of approximately 70-80 km/h and provided that the ambient temperature is not higher than +20 degrees. When the liquid heats up to 100 degrees, the fan turns on, which is designed for additional cooling. With such indicators, it is time to say that the power plant of the machine is functioning without failures. In winter and summer, the RTD may be different. Which RTD is considered optimal for this car? The average is 85-90 degrees.

What is the operating temperature of the Lada Priora engine?

If the fan does not turn on

If the RTD has risen to 100 degrees and the indicator needle has entered the red part of the scale, this indicates overheating. Perhaps this phenomenon occurred due to the fact that the fan did not work. If you find that when it overheats, the fan does not start working and the temperature does not drop, you need to check the serviceability of the fan itself. It is necessary to determine whether the switch-on sensor is triggered when the normal RTD is exceeded? First, start the engine and disconnect the wires from the temperature sensor that is installed on the engine. When the wires are disconnected, forced cooling should work. If this does not happen, most likely the fault lies in the electric motor of the device. How to check the operation of the fan, watch the video.

If the fan turns on after disconnecting the wires, it means there is a problem with the fan switch sensor. Perhaps it incorrectly perceives data about the RTD and therefore does not operate at the right time.

This malfunction is quite easy to fix: you just need to replace the sensor. After replacing it, check if the fan turns on. To do this, start the engine. When the RTD reaches normal levels, do not turn off the engine until the temperature exceeds the norm. As soon as this happens, the fan should be activated. If the fan operates at a temperature above 97 degrees, but less than 100 degrees, then the system is functioning properly.

Temperature sensor malfunction

The reason that the liquid in the cooling system, which serves as an air conditioner for the car's power plant, does not heat up or overheats is due to the failure of the temperature sensor.
Often signs of such a malfunction are:

Stopping the flow of warm air into the car interior, which occurs due to the cessation of fluid flow into the heater.
Dark, almost black smoke comes out of the exhaust pipe. This indicates engine detonation, which was a result of overheating.
Engine power drops sharply.

Many drivers quickly stop the car when it overheats and turn off the engine. In fact, an immediate stop of the machine is required only if the tightness of the system is broken and liquid pours out of it

out. In other situations, the driver must perform the following actions:

turn on the heating to maximum so that the fluid temperature drops and the engine cools down quickly;
drive smoothly to the side of the road;
Let the engine idle for 2-3 minutes with the heating system on.

After this, the engine must be turned off and allowed to cool for 20 minutes. After this, you need to measure the fluid level in the cooling system and add it if necessary. Immediately after the engine is turned off, you cannot open the radiator cap, as you can get burned from contact with the liquid. If the fluid level is normal, then the cause of overheating must be determined by diagnostics. To do this you will have to visit a car service center.

Source

Signs of the need for internal combustion engine repair

The reasons why the operation of the engine is disrupted are arranged in a small list, starting with refusal to start and ending with floating idle speed (this problem was removed on the 127 “engine”). Not all breakdowns end in capital damage - sometimes it’s enough to add oil, sometimes it’s enough to adjust the ECU settings.

Compression reduction

A decrease in cylinder compression below 16 atmospheres is a bad sign. Such a high limit corresponds to a compression ratio of 11.

Knocks in the engine

Engine knocks can come from several points. These could be hydraulic compressors, timing belt rollers or pins. The knocking noise could also be caused by low oil level. The answer to the question will be given by a thorough detailed inspection of all parts of the unit and checking the oil level.

Blue smoke from the exhaust pipe

The blue smoke that comes from the exhaust pipe appears when oil enters the combustion chamber. It can leak either from the valves or from under the piston. The result is the same: the oil is eaten up and blue smoke pours out of the chimney. Once the leak is located, half the problem will already be solved.

Troit motor

Sometimes in the cold the engine may stall - don’t be alarmed by this, because it may simply be one of the spark plugs that fails. In this case, we advise you to simply restart the engine and it will stop running.

How much does it cost to overhaul a Priora engine - average price

Self-repair of a Priora engine with 16 valves costs an average of 16-20 thousand rubles. The cost depends on the severity of the breakdown and may be lower or higher than this average range. Repairing a Priora engine can be entrusted to the wrong hands, but then you will have to pay for the work - sometimes the cost of repairs reaches as much as 40 thousand rubles.

This is an unreasonably inflated figure, because, as practice shows, you can rebuild the engine on a Priora, working at a moderate pace, in just three days - and three days of work is definitely not worth that kind of money. Don’t be afraid of not being able to cope - your Lada is easy to repair, and using the advice and “tutorials”, you will conquer even such a task that is impossible at first glance.

Device and features

The cooling system of the Priora internal combustion engine has a standard set of main components:

radiator;
thermostat;
electric fan;
water pump;
heater;
engine jacket;
connecting hoses;
expansion tank.

By circulating through the large and small circuits, the coolant prevents the engine from overheating, maintaining the desired temperature. Structurally, the cooling system of the Priora is simple and no different from other internal combustion engines with an injector, with the exception of small parts.

Radiator and forced cooling fan

They mainly serve to bring the working fluid to the optimal temperature for the functioning of the engine (the operating temperature of the Priora engine with 16 valves is 90–95 degrees). The predecessor of the Priora VAZ 2110 often installed a cooler made of copper alloys, but due to cheaper prices, designers switched to aluminum analogues.

The operation of the fan depends on the engine control unit.

It receives information from the DTOZH (this is a sensor that reads temperature readings) located in the water jacket of the power unit. If the permissible temperature values are exceeded, the control unit connects an electric fan to improve cooling efficiency. A faulty fan or clogged radiator can lead to a constant increase in optimal engine temperatures, which shortens the service life and can cause costly repairs.

Thermostat

Its task is to promptly open coolant access to a large circle of the engine cooling system (engine cooling system) after the engine reaches the optimal temperature. In simple terms, the thermostat allows you to quickly warm up the engine and regulates the operation of the entire system. During warming up, the thermostat valve is in the closed position, antifreeze does not flow through the large circuit (the radiator is not activated). As it warms up, the valve opens slightly under the influence of rising temperature, and antifreeze begins to move through the radiator along a larger circuit.

A thermostat malfunction can result in overheating of the power unit (if the valve is stuck closed) or, conversely, the operating temperature rises very slowly (when the valve is stuck in the open position). Overheating is much more dangerous. Beginners can identify this malfunction if the engine heats up all the time and the fan on the Priora is constantly running.

Pump (water pump) and heater

Without the first part, the coolant circulation circuit in the system is impossible. If the water pump is faulty, at best there will be a coolant leak from the system. In the worst case, the pump may jam, which will lead to a broken timing belt and subsequent problems, the solution of which will result in expensive repairs.

Engine disassembly and repair

Repairs are carried out according to the standard procedure - we find faulty parts and replace them with working ones. The instructions below describe the process of disassembling the unit itself; before that, you need to dismantle it from the Lada Priora and thoroughly clean it of grease and dirt.

Instructions

Using the 13th key, remove the bracket fastenings. 4 nuts hold the front cylinder block support;
We remove the bracket and move on to the left support - it is removed in exactly the same way;
Next, unit number 126 must be installed on the stand;
After fixing, you can dismantle the pump cover, generator, oil pump and other external components;
Depending on the breakdown, at this stage it is possible to replace certain components;
Using the “tenth” key, we unscrew the fastenings of the heater tubes that go to the pump body. After this, the tube can be removed;
Now we have access to the antifreeze pump - unscrew it from the cylinder block;
After dismantling the pump along with the gasket, we move on to the crankshaft rear oil seal cover;
Next, remove the bracket. Before unscrewing the connecting rod cap, you must make sure that the first piston is at bottom dead center;
By pushing the piston into the cylinder, you can remove the piston along with the connecting rod. The pistons are removed from other cylinders in the same way;
If necessary, you can repair the piston, namely, replace the compression and oil scraper rings along with the expander;
The piston pin can be knocked out only after the piston is securely fixed. Place it in a vice and give it a few blows with a hammer. We recommend marking the working parts of the unit so as not to get confused while repairs are being carried out;
To remove the crankshaft, you will need to remove its bearings and then remove the beds. Repair and assembly are carried out in the reverse order.

Thus, you can completely disassemble the 16-valve engine and repair and replace faulty parts. But if the unit bends the valve, then only an experienced mechanic can handle the malfunction with his own hands. In any case, you will find out whether the motor bends the valves or not after removing the head cover.

DTOZH for the pointer on the instrument panel

The operating principle of this sensor is to change the resistance when the internal element heats up. Passing through the indicator on the instrument panel, the current flows through a single wire to the device. And here the principle of induction in coils comes into play. Simply put, the higher the resistance, the more the needle on the indicator rises, due to the circulating currents in the coil located inside the indicator.

Possible malfunctions of the Priora coolant temperature display system

Most motorists, having discovered that the engine temperature gauge needle does not rise, believe that it is necessary to change the sensor. However, you should first make sure that this is the case. After all, there are several reasons for this state of the panel:

Failure of the pointer on the instrument board.
Break in the wiring.
Direct failure of the sensor.

Therefore, it is better to conduct a small check on your own.

Location and serviceability check of DTOZH

This device is located directly above the Priora flywheel housing. The sensor is embedded in the engine block near the thermostat. It is connected to a single wire with a female connector. The test method for this device is very simple. And it has been used by drivers for a very long time. You need to do this:

Turn on the ignition.
Disconnect the connector from the sensor.
Connect the wire to the block body.

If the DTOZH itself is faulty, the indicator arrow will rise to its highest position. But if no changes occur on the instrument panel, then the reason must be looked for elsewhere. Maybe the circuit is broken, the pointer is broken, or the whole combination.

How to replace the Priora coolant temperature sensor

This is a fairly simple operation. It is available to any driver.

Important! Many believe that this requires draining the coolant. But this is not necessary if you act quickly and skillfully. Otherwise, it’s better to drain it anyway. So. Just in case, drain the antifreeze. To do this, unscrew the cap in the radiator. It is located near the generator, below. And a plug-bolt in the engine block. First place the container under the bottom.

Engine number on Priora 16 valves photo

An official discussion of the Lada Priora question where the engine number is located, answers from two users are available on the site. Instructions and video response are available.

Video quality: HDTVRip

The video was uploaded to the admin from the user Agafangel: for immediate viewing on the portal.

To give the correct answer to the question you need to watch the video. After viewing, you will not need to seek help from specialists. Detailed instructions will help you solve your problems. Enjoy watching.

Humor on topic: When Rosa Lvovna stopped eating after six, she began to chew on Semyon Markovich after seven.

VIN structure Improvement of manufactured products is a continuous process of any continuous production. At the same time, with the exception of cases of major changes in the design of models coming off the assembly line, the results of the modification process are not covered in the vehicle’s operating manual. However, the manufacturer draws up numbered lists of manufactured spare parts, which is why the information encoded in the vehicle identification numbers is of particular importance when purchasing the latter. When placing an order for the necessary spare part, try to provide the seller with as much information as possible about your car. Be sure to provide the model name, year of manufacture, as well as body and power unit numbers.

The chassis number is stamped on the front panel of the car body.
The engine number is stamped on the cylinder block.
The transmission number plate is attached to the top of the transmission housing.

Don't confuse the transmission number with the engine number.

VEHICLES WITH 5 DOOR HATCHBACK

There is no chassis number on the front cross member (above the radiator).

On some modifications of the car, the chassis and engine numbers are duplicated on a plate that is attached to the front panel of the body.

On other modifications of the car, a plate with the chassis number is located on the front cross member of the body (above the radiator).

Some vehicle options include a certification plate located on the rear end of the driver's door.

VEHICLES WITH 5 DOOR HATCHBACK

There is no certification plate on the end of the driver's door.

Vehicle Identification Number (VIN)

This extremely important number is stamped on the rear bulkhead of the engine compartment, as well as on a nameplate mounted on the instrument panel under the windshield on the driver's side of the car. The VIN is also entered into the vehicle title and registration certificate. The number contains information about the date/place of manufacture and body type of the car (see accompanying illustration).

Engine code and model year

The two main components of the VIN are the model year code and the assembly line/body/engine code.

Counting from left to right, the 4th, 5th and 6th positions of the number are assigned to the assembly/body/engine line code. Thus, Civic models are determined by the following combinations:

EJ6 = 3-door/D16Y7 EJ7 = 2-door/D16Y5 EJ8 = 4-door/D16Y8

Integra models are characterized by combinations:

DB7 = 4-door/B18B1 DB8 = 4-door/B18С1 DC2 = 3-door/В18С1, В18С5 DC4 = 3-door/В18В1

The tenth position of the VIN determines the year of manufacture of the model:

R = 1994 S = 1995 T = 1996 V = 1997 W = 1998

The engine number, which is impossible to do without when ordering spare parts for the power unit, is located on the right (on the passenger side of the car) on the block, next to the exhaust manifold. The first five positions of the number determine the engine code. This manual covers models equipped with the following four engine types:

D16Y5 = 1.6 l, SOHC, 16-valve, VTEC-E D16Y7 = 1.6 l, SOHC, 16-valve D16Y7 = 1.6 l, SOHC, 16-valve, VTEC

В18В1 = 1.8 l, DOHC, 16-valve В18С1 = 1.8 l, SOHC, 16-valve, VTEC В18С5 = 1.8 l, DOHC, 16-valve, VTEC

This number is required when ordering spare parts for transmission line repair. On models equipped with a manual transmission, the transmission number is stamped on the clutch dome, next to the starter. On models with AT, the number is located on the right front of the transmission housing, near the dipstick. On models equipped with CVT, the number is located on a vertical platform, also near the dipstick.

Features of cooling system malfunctions

The efficiency of the structure primarily depends on the level of antifreeze in the system and its condition (this liquid has a certain resource, usually up to three years or up to 50,000 km). The main sources of system malfunctions are the thermostat, radiator and electric fan, as well as the water pump, the principle of operation of which is described above.

The radiator most often becomes the source of antifreeze leakage. Accordingly, the liquid level in the system drops, and there is not enough of it for effective heat removal. The motor begins to overheat. It can also be clogged with garbage. And if water is used instead of antifreeze the old fashioned way, scale may form.

Flushing the cooling system of Lada Priora

It becomes dirty and clogged over time and intensity of use. Clogged SOD channels do not allow antifreeze to circulate freely, as a result, heat transfer is disrupted. The stove in the cabin begins to heat poorly, and meanwhile the engine constantly overheats. In these situations, the right solution would be to clean the cooling system. To do this, first of all you need to cool the engine.

The following is the procedure.

Drain the coolant (not only from the radiator, but also from the engine jacket, by unscrewing the drain plug on the cylinder block).
Fill the expansion tank with any suitable flushing fluid to the optimum level.
Start the engine and let it idle for at least 15 minutes.
Drain the used fluid.

Then, if necessary, the procedure is repeated. After flushing, all that remains is to fill in fresh antifreeze and remove the air lock from the system. If a more thorough flushing of the system is required, then there is nothing complicated here either. To do this, you will need a regular watering hose connected to the water supply. To flush the radiator, you need to disconnect the lower and upper pipes, insert them into the upper hose and turn on the water. All dirt and rust will come out of the bottom. To flush the engine jacket, you need to do the same steps, but the hose is inserted into the thermostat pipe.

The effectiveness of flushing the system largely depends on the product chosen as a flushing agent.

The simplest option is regular tap water. Add lemon juice to it. Carbonated drinks, such as cola, are also suitable. You can also buy special cleaning products for washing SOD in specialized stores.

Coolant replacement

Note that the technology for replacing the refrigerant in versions of LADA Kalina with an 8-valve engine is somewhat different from the sequence of work on variations of 16-valve engines. In the latter case, to provide access to the block drain plug, you will need to remove the starter fasteners. And before work, we’ll find out how to drain antifreeze correctly.

Procedure for 8-valve Kalinas

We release the pressure in the previously indicated way.
We dismantle the crankcase protection.
We place the prepared container under the drain hole (located on the right side of the radiator).
You can regulate the pressure of the drained stream of liquid by tightening or removing the plug on the tank. We carry out this manipulation, focusing on the situation.
Having unscrewed the radiator cap, we wait for the liquid to completely drain.
Now we move to the motor block.
The drain plug is located under the ignition coil.
To unscrew the specified plug, we use a 13-size wrench.
We substitute the same container and collect the remaining liquid into it.

The antifreeze replacement is complete.

If the fan does not turn on

If the fan turns on after disconnecting the wires, it means there is a problem with the fan switch sensor. Perhaps it incorrectly perceives data about the RTD and therefore does not operate at the right time.

Refinement of the cooling system

Domestic cars are far from perfect, that's a fact. Lada Priora was no exception in this regard, having inherited many shortcomings from the legendary “ten”. One of them is an unfinished cooling system.

There are several ways to quickly and without financial costs modify the SOD on Priora.

Installing a 6-hole thermostat (stable maintenance of coolant temperature).
The use of Kalina SOD on Priora will reduce the pressure in the system and provide quick warm-up at subzero temperatures.
Installing a larger or additional water pump to improve coolant circulation efficiency.
Use of multi-speed and silent forced cooling fan.
Changing the firmware of the control unit so that the fan operates at a lower temperature.

Refining the cooling system of the Lada Priora is a feasible task even for novice car enthusiasts. The SOD has a simple design with a minimal set of components. Thanks to this, the system is relatively reliable.

If the operating rules are followed, the ODS does not cause problems for the car owner, but natural wear of parts is possible. Therefore, it is necessary to regularly monitor the operation of the system and, if even minor problems are identified, correct them as soon as possible.

The VAZ 2170 model received several power plants, but the most popular engine in the Priora is a gasoline unit with 16 valves and a volume of 1.6 liters. On various automotive forums it is called briefly - 126 (number). Responsible drivers spend a long time thinking about which car to buy, and the engine plays an important role in this matter. Service life, operating temperature, price of a new motor, analysis - our review will answer all these questions.

When does the fan turn on on a VAZ 21126 and how does it affect engine performance?

Since the VAZ 21126 engine differs only slightly from the main VAZ 2110 (21124) engine, their operating temperature conditions are the same, this applies to all 16-valve VAZ engines. Another thing is that the driver in real time can assess the operating temperature conditions only by two indicators, and even then they are not very objective - this is the arrow of the liquid temperature indicator on the instrument panel and the moment the cooling system fan turns on.

Location of the temperature sensor, this sensor only works on the indicator on the dashboard

Obviously, you can’t tell much by looking at the arrow; its readings are more of a symbolic nature. But the fan on Priora and VAZ 2110 operates at a clearly set coolant temperature. The fact is that the engine control system (ECM) has more accurate temperature data than the driver. These are sensors located in the cylinder block, there are two of them.

One performs a purely decorative function and is responsible for reading the temperature indicator on the tidy. The second one is the main one. Visually, it differs in that two wires are connected to it, rather than one, and it is this wire that reports the actual antifreeze temperature to the ECM. It gives the unit accurate information and sends a command to turn on the fan.

The fan switch sensor is located near the thermostat, above the temperature indicator sensor

At the same time, the engine temperature drops by an average of 5-7 degrees if the Carlson is turned on at half power, and if with full load, the temperature levels out from 105-107 ˚C to a nominal 96-98 degrees, depending on the speed and temperature outside.

Choosing new thermostats for cars

Operating temperature of the VAZ-2114 engine 8 valves: facts

Since the cost of a thermostat is usually not very high, and it is responsible for the performance of an expensive engine, it is better to change it every two years. Today you can find several types of such devices on the specialized market. The most primitive are mechanical devices. But an electronic thermostat for a car controls the temperature using a special sensor. There are also electromechanical units that operate using contact pairs.

When choosing a thermostat, it is very important to know its temperature regime, since it differs for different brands of cars. And, of course, it is necessary to select the device strictly according to this parameter

Thus, thermostats for cars can be high-temperature, operating in the range of 300–1200 °C. The valve opening for medium-temperature devices occurs in the range of 60–500 °C. There are also low-temperature devices with an operating temperature of less than 60 °C.

Work resource

The manufacturer states that the 126 by 16 valve engine can operate stably for 200 thousand kilometers. After this limit, the power plant requires major overhaul. But do not forget that AvtoVAZ is a real lottery; for some Priora owners, the engine caught a wedge at 2 thousand. But if you take care of your Lada car, regularly perform maintenance and replace damaged components, then you can safely count on a service life of 150-200 thousand km.

The resource of the power plant is influenced by many factors, here are some of them:

Overheating . Running the engine on a Priora at elevated temperatures significantly reduces its service life. The operating temperature, which we will talk about in the next section, must be maintained at the same level.
Fuel . The instruction manual indicates what kind of gasoline should be poured into engine number 126 with 16 valves. It is also recommended to visit only trusted gas stations that will not fill you with diluted fuel.
Engine oil . Everything is simple here - change the lubricant in a timely manner and buy high-quality oils, then the service life will be 150-200 thousand km. For the 16 valve unit 126, semi-synthetics (Lada recommendation) and synthetics are suitable. The oil needs to be changed once a year or every 15 thousand kilometers; as you can see, the fluid does not have a long service life.

Factors affecting the service life of the VAZ 2170

According to the manufacturer, the ICE 21126 with sixteen valves has a stable operation duration of 200 thousand kilometers. After a certain mileage it is necessary to carry out major repairs. Taking good care of the VAZ 2170, proper maintenance (MOT) and timely replacement of damaged components and parts will lead to a long service life of the vehicle.

Reasons affecting the service life of the power unit:

Engine overheating. Elevated temperatures of a running engine negatively affect the overall service life of the motor. Maintaining the operating temperature of the power unit elements at a constant level significantly extends its operating time.
Fuel. The vehicle's owner's manual contains detailed information about the recommended brand of gasoline. Filling the 16-valve Priora engine with fuel must be of proven quality.
Machine oils. Which oil is best to fill, its brand and how much lubricant is needed is indicated in the accompanying documentation for the car. The 126 sixteen valve engine accepts semi-synthetic and synthetic motor oils most well. A complete oil change should be carried out annually or after a mileage of 15 thousand kilometers.

The optimal operating engine temperature is 90 - 95 °C. The rules allow the power unit to operate at temperatures reaching up to one hundred degrees, provided that the radiator fan is running. The engine temperature is considered low if it is below +90°C. In cold weather, it takes more time to warm up the engine to the desired mark on the device.

When servicing your VAZ 2107 car, the car owner can change the oil with his own hands. To do this, you need to know how to drain used lubricating fluid, what kind of oil to pour into the Priora and how much engine oil to pour into the neck.

Engine operating temperature

We have learned the resource, now we move on to another important indicator. The optimal operating temperature is 90-95°C. After 97°C, engine number 126 with 16 valves will “slow down” a little, but according to the rules, temperatures up to 100°C are considered normal. If the Lada unit is operated with this indicator, then you need to be sure that the radiator fan is running at this time. When you see an indicator below +90°C on the dashboard, you need to assume that this is underheating. Of course, in cold weather the power plant needs more time for the temperature to reach normal levels.

Operating temperature – 90-95°C.
Normal temperature (engine runs worse) is 97-110°C.
Reduced temperature – 90°C and below.

Engine disassembly and repair

What is the operating temperature of the 8 valve Lada Granta engine?
Repairs are carried out according to the standard scheme - we find faulty parts and replace them with working ones. The instructions below describe the process of disassembling the unit itself; before that, you need to dismantle it from the Lada Priora and thoroughly clean it of grease and dirt.

Instructions

Using the 13th key, remove the bracket fastenings. 4 nuts hold the front cylinder block support;
We remove the bracket and move on to the left support - it is removed in exactly the same way;
Next, unit number 126 must be installed on the stand;
After fixing, you can dismantle the pump cover, generator, oil pump and other external components;
Depending on the breakdown, at this stage it is possible to replace certain components;
Using the “tenth” key, we unscrew the fastenings of the heater tubes that go to the pump body. After this, the tube can be removed;
Now we have access to the antifreeze pump - unscrew it from the cylinder block;
After dismantling the pump along with the gasket, we move on to the crankshaft rear oil seal cover;
Next, remove the bracket. Before unscrewing the connecting rod cap, you must make sure that the first piston is at bottom dead center;
By pushing the piston into the cylinder, you can remove the piston along with the connecting rod. The pistons are removed from other cylinders in the same way;
If necessary, you can repair the piston, namely, replace the compression and oil scraper rings along with the expander;
The piston pin can be knocked out only after the piston is securely fixed. Place it in a vice and give it a few blows with a hammer. We recommend marking the working parts of the unit so as not to get confused while repairs are being carried out;
To remove the crankshaft, you will need to remove its bearings and then remove the beds. Repair and assembly are carried out in the reverse order.

Select VAZ engine model

Are the valves bent?

Each engine in a Lada Priora car bends a valve, this also applies to the most powerful unit number 126 by 16. They will tell you this in any service center that services domestic cars. But novice drivers should know that the engine bends components for a reason, and if you follow the operating rules, you will not encounter this problem.

The Lada power plant bends parts only if the routine work to replace the belt and other components of the gas distribution mechanism (GRM) is violated. The motor bends the valve if the rollers, belt or water pump were not replaced in time. When one of these elements breaks, the number 126 pistons meet the valves. Due to this design feature, the motor bends the parts. The solution to the problem is a major overhaul of the Lada.

DIY replacement instructions

If the diagnostics showed that the DTOZH is operational, but signs of a malfunction still appear, then, as we have already said, check the quality of the regulator connection and wiring. If, as a result of the check, it turns out that the device is inoperative, then the coolant temperature sensor will need to be replaced. The replacement procedure itself is not particularly complicated; even a novice car enthusiast can handle it.

As you know, Lada Priora cars go on sale in several modifications - with an 8 or 16 valve engine. Therefore, some car owners may think that the replacement procedure will look different in both cases. But we immediately want to dispel doubts - everything will look almost identical - the thermostat housing is located in the same place on both versions of the engine. The only difference is that you will need to dismantle the line that connects the air filter element to the throttle in advance.

Temperature sensor malfunction

out. In other situations, the driver must perform the following actions:

How to replace sensors yourself

Preparatory stage:

Open-end wrench set to “22”;
Additional lighting as needed;
New DTOZH;
Rags;
Multimeter.

Step-by-step instructions for replacing the coolant temperature sensor:

We install the machine within the perimeter of the repair area;
We provide priority safety measures: squeeze the parking brake, wedge the rear row of wheels with wheel chocks;
Open the hood, turn off the engine;
We remove the terminals from the battery to avoid short circuits during repair work;
We disconnect the limit switches from the DTOZH, unscrew it from its regular place;
We carry out preventive maintenance of the thermostat, inspect the integrity of the housing, the absence of defects;
We screw in the new measuring device and put on the power terminals.

We start the engine and check the accuracy of the temperature display. Checking the antifreeze level. We replenish the missing amount as needed. For a model with a pre-installed air conditioner, it is necessary to additionally remove the air filter housing along with the air element itself.

How much does engine No. 126 cost?

As it turns out, buying a new 16-valve unit for a Lada Priora is an expensive proposition. Today you can purchase a 16 valve 1.6 liter EURO-3 and EURO-4 engine. The first option costs approximately 102 thousand rubles, and the second – 103 thousand. Motorists are also interested in how much it costs to purchase a used Lada unit. Used ones can be purchased even for 20 thousand rubles. But you can find out what condition this unit is in only after a complete disassembly or a trip to a car service center. The average price for a used one is 50-60 thousand rubles.

Engine disassembly and repair

Instructions

Using the 13th key, remove the bracket fastenings. 4 nuts hold the front cylinder block support;
We remove the bracket and move on to the left support - it is removed in exactly the same way;

What is the operating temperature of the Lada Priora engine?

If the fan does not turn on

Temperature sensor malfunction

Signs of the need for internal combustion engine repair

Compression reduction

Knocks in the engine

Blue smoke from the exhaust pipe

Troit motor

How much does it cost to overhaul a Priora engine - average price

Device and features

Radiator and forced cooling fan

Thermostat

Pump (water pump) and heater

Engine disassembly and repair

Instructions

DTOZH for the pointer on the instrument panel

Possible malfunctions of the Priora coolant temperature display system

Location and serviceability check of DTOZH

How to replace the Priora coolant temperature sensor

Engine number on Priora 16 valves photo

Features of cooling system malfunctions

Flushing the cooling system of Lada Priora

Coolant replacement

If the fan does not turn on

Refinement of the cooling system

When does the fan turn on on a VAZ 21126 and how does it affect engine performance?

Choosing new thermostats for cars

Work resource

Factors affecting the service life of the VAZ 2170

Engine operating temperature

Engine disassembly and repair

Instructions

Are the valves bent?

see also

DIY replacement instructions

Temperature sensor malfunction

How to replace sensors yourself

How much does engine No. 126 cost?

Engine disassembly and repair

Instructions