The throttle valve is important node in a car, serving to regulate the amount of air entering the car’s intake system when the accelerator (gas) pedal is pressed. This unit, depending on its position, supplies either more or less air to the system, thereby adding a critical component to the combustion system and facilitating the processing process gasoline mixture.

The throttle valve is cleaned when it malfunctions, which most often occurs during long-term operation.

There may be several main reasons for the malfunction:

The cable for opening and closing the damper is clogged with contamination products (most often they are road dust mixed with dirt). Since the vast majority of cars in the VAZ line produced before 2012 have a cable-operated throttle valve (and not electronic pedal gas) the problem of this element sticking is the most common (except for VAZ 2114 and 2115 cars recent years release, where an electronic drive was used);
Failure of the damper itself due to mechanical failure (most often this problem occurs in cars with high mileage and a decent age)

Video on how to clean throttle valve for VAZ 2114:

Cleaning process

The procedure for cleaning the damper is not inherently complicated and does not require special knowledge and skills from the owner. To carry it out, the car enthusiast will need a set of keys of various diameters, rags, and a special cleaning compound.

The procedure itself can be carried out in several stages and is divided into several types according to the depth of processing:

For preliminary (or initial) cleaning, it is necessary to remove the protective casing covering the cable of the assembly and the assembly itself. Then the places of contact with environment generously lubricated with a cleaning agent (specialized fluids for cleaning the unit can be used as such, but their effectiveness is usually equal to WD-40 lubricant or common alcohol);
Then, after applying the material, all parts must be carefully treated with a rag to remove dirt and dust from the surface (when wiping the outside of the assembly, you must remember that a lot of dirt and dust also accumulates on the inner surface of the damper);
The flushing process is more complex when there is deep clogging, when it is necessary to thoroughly clean both the inside and the outside of the unit. For this procedure, you will also need a set of Phillips screwdrivers in addition to the existing set.

On video how to clean the throttle valve on a VAZ 2112:

Procedure

Everything is being dismantled throttle assembly. Since the unit is located behind the collector and in an easily accessible place, this procedure is not difficult. To do this, you need to remove the protective casing and unscrew several bolts and close the antifreeze and adsorber pipes (the liquid pipes are closed with hard plugs - most often with M13 bolts);
After this, the gas pedal cable, which is attached directly to the assembly, must be dismantled;
Then dismantling is carried out attachments in the form of sensors. On cars with an injector, DPZD and IAC sensors are located on the damper, regulating the correct operation of the unit. Dismantling of the sensors is carried out by simply disconnecting the chips from the body and removing the devices themselves;
After this, you need to begin thorough cleaning. Since over time all elements of the assembly become clogged with dirt and dust, they must be thoroughly cleaned. In this case, it helps a lot special means for cleaning, and universal tested liquids (alcohol). All holes in the damper, the gas pedal drive cable, sensors and the housing itself are also cleaned. After this, the structure must be allowed to dry for 20-30 minutes;
Installation of the equipment is carried out in the reverse order - installing the sensors on the housing, installing the gas pedal cable, installing the canister and antifreeze pipes (with preliminary removal of the plugs from them) and installing the housing itself in its normal place).

The cleaning process is almost completely identical for the entire family of front-wheel drive injection cars VAZ until 2012.

All cars require constant supervision and cleaning of certain parts that are so important for operation. Domestic cars, to be honest, require much more attention than foreign cars. You should also look under the hood of the VAZ 2114 to check the degree of contamination of the throttle valve.

Throttle valve - how to recognize this part?

The throttle valve is one of the vehicle injector mechanisms that supplies air to the engine cylinders. This action occurs due to the opening of the valve, which receives air from the air filter. The valve opening angle is controlled by the gas pedal. The greater the intensity of pressing the gas pedal, the more the throttle valve opens and the more revolutions the tachometer shows on the instrument panel.

Along with the air, gasoline also enters the engine cylinders, after which compression and combustion occurs. fuel mixture. If a lot of dirt accumulates on the damper, this is a violation normal operation engine of a VAZ 2114 car, because the air that enters the cylinders along with the fuel is not enough for a complete combustion.

Determining when it is necessary to clean the damper of a VAZ 2114 car is quite simple. The most common symptom is unstable engine operation when starting, in some cases it may even start every other time. After idling, the engine may stall. The idle speed also fluctuates, and there may be characteristic sound emissions from the pipe. While driving, especially at low speeds, the car may jerk, but at high speeds you will not notice this action, but the car’s engine will work as if under load.

Sensors are also involved in the operation of this part - the main one is air. Often it is its failure that turns out to be a problem in the operation of the car engine. The throttle valve in a VAZ 2114 car is located under the hood and is located between the air filter and intake manifold, on the passenger side of the car. In some modifications of the VAZ 2114 car air filter located in the center, which greatly facilitates the work when removing the mechanism.

Why does the damper not work well?

Contamination on the throttle valve in a VAZ 2114 car appears as a result of the deposition of oil dust, various deposits and crankcase gases. This causes the throttle valve to not fully open or close, resulting in unstable work car engine.

The throttle valve is a simple mechanism, so you can clean it yourself in the garage. To do this you will need a set of tools and a cleaning product. You can buy it at any auto store. Before purchasing, it is very important to read on the packaging which elements it is recommended for cleaning. Most often, drivers use carburetor cleaner for this purpose. The process can be divided into two types according to the degree of intervention.

The first type is the usual surface cleaning of the damper, which does not require its complete removal and disassembly of the mechanism. This method is not effective enough and can only be used for preventive purposes, once every 2 thousand km.

To perform surface cleaning, you will need a chemical that you bought in advance, a rag and a brush. Next, you need to remove the corrugation from the air filter, which is placed on the throttle valve. After this, you need to spray the product inside the damper on its valve, wait a few minutes and start cleaning with a brush. Afterwards, you need to wipe everything well and let the car sit for a while so that everything dries. Next, connect all the pipes back. When cleaning with this method, you will not be able to completely blow out all the grooves through which air enters. Yes and with reverse side valve, unwanted deposits may remain.

Complete cleaning of the damper - how to do it?

For complete cleaning, in addition to the product and a set of tools, you will also need a gasket and an o-ring - it is better to replace them with new ones during the cleaning process. They are not expensive and are available at any auto store. It is very important to buy these parts specifically for your VAZ 2114 model, because they are different. To be safe, you must remove the terminals from your vehicle's battery before performing a complete cleaning.

In order to remove the damper, you need to use a Phillips screwdriver to unscrew all the air pipes that come from the filter. Next, remove the throttle cable and unscrew the throttle assembly fasteners. Using a 13mm wrench, unscrew the two bolts that hold the damper in place. After removing it, carefully disconnect the electronic sensors located there and place them aside.

Next, wash with a chemical agent on all sides. Do thisand actions are needed 3-5 times over 30 minutes. The number of procedures depends on the condition of the part, as well as on the chemical used. As a result, the damper mechanism should look like new.

The throttle valve grooves must be blown out of the compressor. If you don't have one, then this will do car pump. The sensors must be thoroughly wiped with a rag and only then screwed into place. After completing all the steps to clean the damper in a VAZ 2114, proceed to assembling and connecting the sensors and pipes in the reverse order. The gasket and sealing ring are installed on the air filter bellows, do not forget to replace them.

At reassembly You need to pay attention to the pipes that go into the throttle valve. There are times when they are damaged, then they also need to be replaced.

Flushing the throttle valve is not a troublesome procedure. Especially if you have already had to remove the throttle and put it back. For those who are hearing about such a unit as a throttle for the first time, I’ll explain: on the fourteenth, as well as on the fifteen and ten, this damper is located in front of the intake manifold.

The main function is to regulate the amount of air that enters the manifold. It is clear that the fuel entering the cylinder burns only when mixed with air, therefore, the more of it, the more active the combustion, the engine produces more power, the car drives faster. Everything would be fine, but only if there is more air, then in proportion to it more gasoline will flow in and be burned. But this is not always required. And this same throttle controls the inlet for air flow, thereby controlling the power produced by the engine and the speed of the car.

The valve opens and closes at the moment when we press the shoe to the floor - the gas pedal - or release it (the throttle valve is connected to the gas through a cable).

As has already been said, you don’t need much experience in the process of how to clean the throttle valve; it is much more important to realize in time that it needs it. Experienced drivers and service specialists unanimously insist that every 60-70 thousand kilometers it is necessary to carry out preventive maintenance along with diagnosing the condition of the damper.

Dust, oil, crankcase gas - all these are reasons why we have a dirty throttle valve. Slag settles on the walls of the entire unit and prevents full review on the pedal of the damper itself - it will no longer open and close properly. It will easily become clear to you that the time for cleaning has come, based on the following symptoms:

The engine starts every other time
Increased crankshaft speed
RPM fluctuates at idle
The car jerks if you drive at low speed
The engine may start and immediately stall

Cleaning has never been superfluous, but along with this procedure, just in case, check the condition of the air flow sensors, idle move and raising the throttle.

Washing methods

On a VAZ 2114, cleaning the throttle valve can be done in two ways: surface and deep washing.

Surface washing method

This easy way, and does not require knowledge of how to disassemble the throttle valve on the fourteenth. But the effect from it is insignificant - we walked superficially with a rag over the body of the unit, wiped off the dust and that was it. But even in this case, it is necessary to have a small arsenal: a cleaning agent - the good old WD-shka will come in handy (many believe that this the best remedy to clean the throttle valve), but you can also take alcohol, gasoline, carburetor cleaner, a cloth and a brush. The process is like this:

Removed the corrugation from the damper
Sprayed all the insides of the assembly with cleaning agent
Went through with a brush
Wipe it off with a cloth
The main thing is not to forget that the reverse side of the unit also needs to be cleaned - open the flap
Then we put everything back in place - and that’s it!

Surface method from the word “surface”, the internal parts of the unit with this method of cleaning remain dirty.

Deep washing method

The method requires a more thorough approach, a little experience in removing the damper and a richer arsenal for cleaning: a cloth with a WD head remains, plus a cross-head screwdriver, a throttle valve gasket (if the engine is 1.5 liters) and a receiver O-ring (if the engine is 1.5 liters). 1.6 l) - an inexpensive pleasure, on average 40 rubles, cotton swabs, a 13-socket wrench and 2 M13 bolts. The process is as follows:

We remove the throttle assembly: pull the corrugation off the filter, then disconnect the pipes with antifreeze (for this procedure you need the same M13 bolts to plug the pipes; many recommend draining the antifreeze, but this is a waste of time, just very quickly disconnect and plug the ends), Next, you need to remove the adsorber pipe.
All the hardest part is over, we move on to disconnecting the fasteners of the assembly itself, then disconnect the gas pedal cable and remove our assembly.
As soon as the assembly has been removed, we disassemble it: let's start with the IAC and TPS sensors.
They need to be washed thoroughly.

Then wash the damper on all sides, after washing, blow through all the holes so that everything is dry.
We assemble the assembly in exactly the opposite order and put it in place.

Remember the new gasket or ring? Well, they are needed because they cannot be cleaned, only for replacement. Don't forget to install these new spare parts according to the engine displacement.

Cleaning the idle speed sensor

It is very important to pay Special attention status of the idle speed sensor. Since it plays an important role in the throttle assembly, and if this sensor is faulty, then the engine will behave inappropriately, and you will sin on the throttle. But this is not even the worst thing - a malfunctioning sensor always means excessive voltage on the entire system of the car and its incorrect operation, which is dangerous, especially at a VAZ, where sometimes it is not possible to figure out what caused the problem.

Knowing how to clean the throttle valve, we clean the IAC sensor. The only thing is that if you have the fourteenth with a volume of 1.6, you will first need to unscrew the two nuts securing the throttle assembly to the receiver and move it away with a gap of a couple of centimeters, without removing it from the car. The process for cleaning the sensor is as follows:

You need to remove the entire wiring system from the sensor.
Dip a cotton swab into the WD solution and carefully clean all these contacts.
Then use a cross-head to unscrew the sensor fasteners (if they are present, of course, if they are not, the IAC is sitting on the varnish and you cannot do without removing the entire assembly).
The sensor can now be pulled out and inspected - if it is all oily and covered with a layer of dirt - the VAZ 2114 throttle valve has long been in need of deep washing, just like it.
Take a WD-shku and spray it onto the needle of the cone with a spring, wipe off the corroded dirt with a cotton swab. Just like the entire assembly, you need to blow it out after washing and put it back in place dry.

Now check the distance from the sensor cone needle to the body - it should be 23 mm!

That, in principle, is all that concerns the process and reasons why you should clean the throttle valve. It is important to understand the fact that if after deep cleaning of the damper and sensors. The higher fourteenth still behaves badly, twitches and stalls at idle, then the problem is not in the throttle or in the sensors (most likely). Perhaps the wiring is loose.

By the way, if you still decide to go to service center to the craftsmen so that they can wash and clean everything for you, the pleasure is relatively inexpensive, on average, 500 rubles. Advice - the throttle is the only thing they should clean, without touching your brain about the topic of why they clean the throttle and how often it should be done. It’s no wonder that the more often a client visits the service, the better the business goes. They may say that flushing should be done once every 10-15 thousand km; this is too small a figure and not realistic in practice.

The VAZ 2114 throttle valve is an important engine component that provides a dosed supply of purified air to the engine, thereby ensuring the saturation of the fuel with oxygen to ensure its active combustion.

Finding this element is not difficult. To do this, you will need to open the hood of your car, find the air filter and the black pipe for supplying air to the engine. Gaze in the direction of air movement (from the filter) closer to windshield, determine the location of its connection with the metal element with the tubes connected to it. This will be the throttle assembly.

Throttle valve malfunctions VAZ 2114

The mechanism itself is not a complex structure and is designed for the entire service life of the engine. However, some design features motor and a number of external negative factors, over time create obstacles to its normal operation.
In most cases, problems with the damper are the result of simple contamination. The reasons for the appearance may be the following:

untimely replacement of the air filter, resulting in the entry of dusty, unpurified air;
presence of defects and cracks in air system and its elements (for example, a defective air filter, a torn pipe), the result is the same - contamination air flow;
the appearance of carbon deposits and oil residues on the inner walls of the throttle assembly and valve.

The result of the above reasons is the incorrect operation of the unit; the damper may not fully open or close, which directly negatively affects the operation of the engine.
Although the filtration and air flow purification process can be controlled, it will not be possible to completely get rid of carbon deposits.
Therefore, automakers recommend periodic cleaning of the unit from contamination every 25 thousand kilometers. We believe that this recommendation is completely justified in the conditions of Russian reality, the quality of fuel and the condition of the road surface.

Troubleshooting

Before taking any action, you need to check the VAZ 2114 throttle valve for possible problems.

In order to accurately diagnose a malfunction or incorrect operation of the throttle, there are inherent, characteristic features. These are:

Instability of engine speed at idle, their unreasonable increase;
Periodically stalling engine;
Jerking while moving;
The discrepancy between the effort when squeezing the gas pedal and the final result (the proper reaction from the engine does not occur, power does not increase, the car does not pick up speed or does it late).
Noticeable increase in fuel consumption in standard driving mode.

Please note that problems may be caused by:
— Malfunction TPS sensor, resulting in the wrong amount of fuel being supplied to the system.
— Malfunction of the idle speed controller.
Therefore, sometimes it is advisable to check these important elements of the system.

Cleaning the throttle valve of a VAZ 2114

There are two cleaning methods:
— Without removing the unit;
— And accordingly with its dismantling.

Which method should I choose? It all depends on the degree of pollution. If the mileage has been up to 25 thousand since cleaning or replacing the throttle. Then, most likely, it is possible to limit ourselves to superficial cleaning and prevention without removing the part.
In other cases, it is recommended to completely dismantle the unit for deep, thorough processing, cleaning and gaining access to hard-to-reach places.

We will describe in detail the process of complete removal after which the first option will not be difficult to complete.
So, let's begin:

First, unscrew the lid expansion tank with antifreeze. This is necessary in order to “relieve” the pressure and avoid antifreeze leaking out of the hoses.
Next, we need to unscrew and loosen all the clamps that tighten the hoses attached to the throttle block. The same applies to the air pipe. To carry out the work we will need a 13mm wrench or socket.
After removing the clamps, disconnect the hoses themselves. We disconnect the pipe from only one side and, for convenience, move it to the side.
Now remove the throttle cable from the throttle drive selector.
Turn off the power to the sensors.
Take the 13mm head, unscrew the two bolts and remove the throttle assembly. Remove the old gasket.
To treat contamination, you can use carburetor cleaner and a clean rag or rag. If the degree of contamination is very high, then you can use a toothbrush with hard bristles.
Just before cleaning, disconnect the idle air control. Apply the product to the contaminated surface. Using progressive movements, remove carbon deposits from the metal surface. If you are not satisfied with the result, repeat the operation again until complete cleansing. It is very important to clean or blow out the channels that are in the product. A large amount of dirt accumulates there. It is most convenient to carry out purging using compressed air. To do this, you can use a regular car pump.
If the sensor socket and the sensor are clogged, be sure to clean them too.
Do not forget to carefully clean the junction of the throttle assembly and its internal cavity. To do this, apply some cleaning product to a rag. Distribute evenly on the inner walls of the parts. Take a brush and clean the problem areas. After finishing the treatment, wipe the cleaned areas with a damp cloth and remove any remaining dirt.
After washing the unit, it is recommended to clean and blow out the disconnected pipes.
We expect a short amount of time.
We install a new gasket at the junction of the throttle assembly.
We attach and secure the knot in place.
We connect the IAC sensor.
We pull the hoses onto the fittings of the cooling system and connections to the adsorber.
We put on the throttle body pipe.
We fix the cable on the drive.
Tighten the clamps of all attached elements.
We connect the sensor chips.
Close the cap of the expansion tank with coolant.
We start the car and test its operation.

The non-removal method is somewhat similar to the one we described earlier. The only difference is that we will only remove the air duct pipe and nothing else.
The work steps are as follows:
— Remove the pipe;
— We repeat point number 10 of the previous method.
— We connect and secure everything in the reverse order, not forgetting to replace the old gasket with a new one.

Keep in mind that this method is most suitable for preventative, light, superficial cleaning. If malfunctions or incorrect operation of the engine occur, use only the removal method.
Now we know how to clean the throttle valve on a VAZ 2114 using two different ways, quickly and without much difficulty.

Please note that if you do not have a carburetor cleaner available, you can use other cleaning agents, for example the well-known WD-40.

During operation vehicle BA3 2114, the throttle assembly is constantly subject to excessive clogging. Exposure to crankcase gases and working fluid particles leads to disruption of the throttle function. In this regard, it becomes necessary to clean the throttle valve to maintain the performance of the propulsion system. Modern manufacturers In vehicles, it is recommended to clean the throttle valve every 50,000 km.

Consequences of contamination of the VAZ 2114 throttle assembly.

1. As a rule, contamination of the throttle valve inevitably leads to difficult engine transition from high speed to low. In this regard, the car owner is faced with a decrease in the productivity of the car engine.

2. The second consequence of throttle contamination is difficulty starting the VAZ 2114 engine. When the remote control is dirty, the car engine has difficulty starting when cold, which greatly complicates the operation of the vehicle.

There are several reasons for contamination of the VAZ 2114 remote control. The most common of them are small particles of sand and dirt that enter the gas ventilation system through the air filter. During vehicle operation, small dust particles accumulate in areas of increased air flow and the throttle valve, incl.

Throttle valve VAZ 2114, do-it-yourself cleaning.

Cleaning the VAZ 2114 throttle will allow you to avoid problems when starting the engine and restore the productivity of the vehicle. To carry out the work, you need to prepare the following materials and tools: a 13mm wrench, slotted and Phillips screwdrivers, carburetor cleaning fluid.

Stages of work execution.

1. In order to gain free access to the throttle assembly, you must first dismantle the plastic protection of the propulsion system.

2. The next step is to get rid of excess pressure in the cooling system of the propulsion system. To do this, you need to unscrew the cap of the expansion tank with coolant and loosen the holders of the cooling system conductors.

4. Next, you need to dismantle the ventilation hose of the pipe through which the air flow passes. After this, it is necessary to conduct a visual diagnosis of the node for oil liquid in the air flow pipe, we can conclude that the unit is clogged. This fact indicates that gases, together with parts of the working fluid, pass through a wide channel of the ventilation system.

5. The next step is to loosen the holders of the remote control heating conductors using a screwdriver. After this, you need to plug the hoses using improvised means - for example, a rag.

7. Now you can proceed directly to cleaning the VAZ 2114 damper. Using carburetor cleaning fluid, you need to treat the assembly and all corresponding channels.

8. The next step is to unscrew the fasteners and remove the idle air control. If the regulator has minor contamination, it is necessary to treat it with a special compound. If the idle speed regulator has mechanical damage you need to replace it with a good one.

The same must be done with the gasket of the throttle assembly. In case of significant damage, the gasket is replaced with a new one.

9. After processing all the necessary components of the throttle assembly, we assemble the system in the reverse order. After final assembly, it is necessary to check the operation of the throttle assembly and the propulsion system. As a rule, cleaning the unit allows you to restore engine performance and to some extent increase its productivity.

During operation of the BA3 2114 vehicle, regularly diagnose and clean the throttle to maintain the productivity and service life of the internal combustion engine.

Happy servicing!

Signs of a bad throttle valve. Throttle valves