Throttle valve Lada Granta 16 valves how to clean

Instructions for cleaning the throttle body on LADA cars

In some cases, problems in engine operation may be associated with the formation of all kinds of deposits on the walls of the throttle valve.
In this case, cleaning the throttle assembly (DU) can help. We'll tell you how to perform this procedure yourself. The remote control cleaning process is carried out similarly on all modern LADA cars (XRAY, Vesta, Largus, Priora, Granta, Kalina, Lada 4×4). You will find examples of work on specific LADA models in the comments.

Do I need to remove the remote control?

It is not necessary to remove it to clean the throttle assembly. However, with the part removed, this can be done easier and better (see how to remove the remote control).

How to clean the remote control?

The book on repair and operation of the LADA Vesta car (and other LADA models) indicates that to flush the throttle assembly, you need a means to clean the engine inlet pipeline. As a last resort, you can use a carburetor cleaner.

How to clean the remote control?

We spray the cleaning agent not only on the throttle valve itself and the cavity around it, but also on all channels and hidden cavities. The use of soft rags is allowed. When cleaning the remote control with E-gas, make sure that the cleaning agent does not get into the electrical part of the unit. The process is shown in the video:

• Do not remove the throttle valve mounting screws. If they are then poorly tightened and tightened, the loosened screw can get into the engine cylinder and damage it.
• Use a coarse lint cloth or wire brush for cleaning.
• Do not touch the throttle on cars with an electronic gas pedal, so as not to reset the factory setting.

If it was not possible to eliminate the engine malfunction by cleaning the throttle assembly, then the throttle assembly must be replaced (if you are sure that it is the cause of the malfunction). When installing a new throttle body, special diagnostic equipment may be required to check the "calibration" of the throttle position at the extreme positions. This operation can be performed at a specialized service station. See also: Procedure for adapting throttle valve zero on Lada Vesta and XRAY.

An example of flushing the throttle valve on a Lada Vesta after 75,000 km:

Have you ever had to clean the throttle body yourself? What were the difficulties?

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How to clean the throttle valve on the injector

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The task of the throttle valve (hereinafter referred to as DZ) is to regulate the amount of air supplied to the intake manifold. Its position is adjusted in accordance with the position of the accelerator pedal. The damper drive can be mechanical (using a cable) or electronic (using an electric motor). The position of the remote control is recorded by a special sensor. It transmits the relevant information to the ECU, which in turn makes a decision on the amount of fuel supplied and changing the engine operating mode. You can read more about its structure and functions in additional material on our website.

Equipment diagnostics

1. We switch the tester to resistance testing mode (ohmmeter), measure the resistance at the regulator terminals according to the diagram: A - B, C - D. Data in the range from 0.040 to 0.080 Ohm.

1. Using a caliper, measure the distance between the end of the needle and the flange; it should not exceed 23 mm.

1. We inspect the mounting socket for each of the sensors, clean it with a rag from dirt and dust.
2. Before installation, lubricate the O-ring with engine oil.
3. We tighten the screws of the regulators with a torque of 3 - 4 Nm.

Signs of a dirty throttle valve

In order not to confuse the symptoms indicating excessive carbon deposits on the valve, it is better to first visually inspect it, and if there are no visible oil or coked deposits on the walls of the throttle assembly, then, with a high degree of probability, cleaning the throttle valve will not eliminate the problem.

themselves look like this :

• problematic engine starting;
• uneven engine operation;
• floating speed at idle;
• freezing engine speed;
• drops in speed until a complete stop.

Causes of breakdowns of idle speed sensors

The breakdown indicator lights up on the dashboard, the car speed fluctuates, and the air consumption increases.

The second most common reason is systematic jamming of the mechanisms in the ventilation valve. As a result, the tachometer needle shows speeds from 850 to 1250 rpm, and the idle speed is unstable.

Completes the “top three”: a lean mixture entering the cylinders for subsequent ignition.

Sensor

Preparatory stage before installing the idle speed sensor

Necessary tools, materials:

Mistakes when cleaning the throttle valve

Many inexperienced car owners can incorrectly clean the throttle assembly, at a minimum risking not getting the desired effect, and at maximum - completely damaging and disabling the throttle body. Therefore, it is important to understand when to do the procedure, how to do it and what means to use.

Dirty throttle valve

Clean throttle

To properly clean the throttle body DO NOT :

1. Clean the damper in any unclear situation (there are even jokes about this).
2. Clean the damper without removing it (the effectiveness of such cleaning is insignificant, since often it is only possible to remove carbon deposits on the damper itself, and the internal walls and air channels of the damper are not cleaned).
3. When cleaning with a rag, use excessive force, which can lead to damage to both the damper itself and the nearby TPS.
4. Use brushes rather than soft materials. Such an error also quite often leads to loss of performance of the remote control, since on some throttle units the inner wall and damper are coated with molybdenum for even smoother air passage. This layer is often confused with plaque and is removed. As a result, the damper begins to either “bite” or allow excess air to pass through (the speed increases).
5. Forgetting to teach the throttle after cleaning. Dampers with an electronic gas pedal require proper learning of the remote control in order to set the idle speed to the required value.

The throttle valve should be cleaned every 30-50 thousand km . Adhering to all the above recommendations and taking into account the main mistakes that inexperienced car owners make, no more questions should arise about how to clean the throttle valve, be it mechanical or electronic. For cleaning you need a minimum of equipment and costs, just a carb cleaner and clean rags, as well as a screwdriver for dismantling the unit.

Conclusion

The performance of idle speed sensors is influenced by many factors, including:

• fuel quality;
• level of dust and gas contamination of the territory;
• filter replacement frequency;
• car driving style.

In most cases, breakdowns are caused by violation of the operating conditions of the technical equipment by the driver. Purchasing cheap, non-original spare parts and unprofessional installation are the main factors that create the preconditions for premature wear of parts.

Cleaning algorithm

Now we will give a step-by-step algorithm for properly cleaning the throttle valve.

1. First of all, you need to get to the damper itself. The design is different in different engines. But as a rule, to do this you need to remove the air duct that runs from the damper to the air filter.
2. Dismantle the damper. To do this, unscrew several mounting bolts (2-4 pieces), and also disconnect the necessary connectors (for example, the connector from the absorber purge valve).
3. To clean, you must use a carburetor cleaner. There is a wide variety of them, and in auto stores you can easily find a product in accordance with your preferences and capabilities (we will talk about them later).
4. Using a rag and the mentioned product, you must thoroughly wipe the damper outside and inside.
5. You also need to clean the protective grille (if your car has one).
6. Assembly of the unit is carried out in the reverse order.

Addresses of companies providing installation/replacement services (Moscow, St. Petersburg, Kyiv region)

How to clean the throttle body on a VAZ 2110. how often should you clean the throttle body

Cleaning without removal

Also, many car owners are interested in the question of how to clean the throttle valve without removing it. Such methods do exist, but you must immediately understand that high-quality cleaning is only possible by dismantling the damper .

To do this, you will need a special product - an intake tract cleaner. You can use different brands. You can also use EGR valve cleaning fluid, WD-40, and solvents for cleaning.

So, the procedure without removing the node :

1. As in the previous algorithm, you need to remove the air duct to get to the damper.
2. With the damper closed, spray the surface with cleaning liquid and remove the cleaned dirt using a rag.
3. Open the damper and remove dirt from the side surface.
4. Make sure that the cleaning agent gets into all channels. The cleaning procedure is similar using a rag.

Let us repeat once again that for proper cleaning, the throttle valve must be removed from the car. And when installing it back, it is advisable to replace the damper gasket with a new one. Fortunately, its price is low.

It should also be remembered that in most cases, after cleaning the throttle valve, it is necessary to perform actions to “train” it . This procedure is carried out either using a computer (by connecting it to the car's ECU), or by manipulating the ignition and gas pedal. In this case, it is impossible to give universal recommendations, since they can differ significantly for each manufacturer and even model. Remember this!

Checking TPS

If the car shows one or more signs of malfunction, you need to check the sensor. This process does not require special skills: it is enough to have a multimeter and follow a certain sequence of actions.

First of all, you need to turn off the ignition. Check to see if the Check Engine light is on. If it goes out, then you can open the hood and inspect the TPS. To do this, you need a multimeter with which readings will be taken.

1. Check for a minus. In order not to disconnect each wire, it is enough to simply pierce them. The “mass” should be found in the same way.
2. Find out if the sensor is receiving power. Depending on the car, the voltage may be different - 5 or 12 volts. Turning on the ignition, you need to pierce the wires one by one: the measuring device should show 0.7 volts.
3. Manually opening the throttle will cause the voltage to rise above 4 volts.
4. Next, you need to turn off the ignition and disconnect one connector. Connect a multimeter between one of the other connectors and the slider terminal.
5. Slowly turn the sector by hand, tracking the arrow readings. A smooth rise without hesitation indicates that everything is normal. A stepwise increase in measurements indicates that critical problems have occurred on the resistor track. These readings are important because they affect the operation of the control unit, which supplies fuel to the injectors. The ECM adopts the data based on it, so if the valve position does not correspond to reality, problems with fuel supply will begin.

If the TPS is faulty, it requires replacement. In addition, you need to do several checks to prevent future breakdowns. It is advisable to completely replace the sensor - a low cost will allow the engine to operate fully. Problems for which it is recommended to replace the sensor:

• Deformation of the sensor, which leads to distortion of the transmitted information;
• Idle contacts do not open properly.

After replacing the TPS with a new one, no additional configuration is required. By default, it considers idling to be zero.

Causes of pollution and how to deal with them

There are several reasons why the throttle body becomes dirty over time. By avoiding their appearance, you will automatically extend the time between cleaning it. Reasons mentioned include:

• Using low-quality gasoline . If there is sediment in it, it will definitely get into the throttle assembly, where it will turn into carbon deposits. Therefore, try to fill in high-quality gasoline and refuel at proven gas stations.
• Clogged fuel filter . If you do not change the fuel filter in time, then there is a possibility that pieces of dirt from it will get into the fuel system, including the throttle assembly.
• Dust and dirt getting into the intake system . This can be caused by various reasons - clogged air filter, damage to the integrity of the air duct, various mechanical stress.
• Crankcase gases with oil dust . They are the main cause of oil deposits on the valve. They can enter the combustion chamber through the valve cover from the crankcase ventilation system. The situation is aggravated by the fact that they carry oil dust. It is this that burns and remains as sediment on the surface of the throttle valve.

Change the air and fuel filters on time, fill with high-quality gasoline, and prevent dust from getting into the car's fresh air ventilation system. All this will save you from the need to clean the throttle valve ahead of schedule.

Let's figure out why the throttle gets clogged

Like any vehicle component, the throttle valve must be serviced periodically.
A common problem with this unit is blockage. The throttle can become clogged for several reasons:

• Dust on the roads. Despite the location of the damper after the air filter, dust particles still enter the throttle air duct. If the filter itself is already dirty, then larger dust fractions enter the choke.
• Crankcase ventilation. On many modern cars, crankcase gases are cleared of oil in the oil separator and enter through the throttle into the intake system along with ordinary air. This principle is being implemented to comply with environmental standards.
• Exhaust gas recirculation. This system began to be used relatively recently, but has already become popular among automakers. The exhaust gases from the exhaust manifold again flow through the throttle into the intake for afterburning.

How to clean the throttle valve

There are a number of special products designed to clean the surface of the throttle valve. Some craftsmen use WD-40, acetone, solvents and other similar compounds for this. In principle, they can be used, but the risk of damaging something inside the engine increases. Today, car dealerships sell a large number of special products for carrying out this procedure. All of them are relatively inexpensive. Therefore, taking into account the fact that the throttle valve does not need to be cleaned so often, any car owner is able to purchase such a product.

The cost is indicated as of prices for the summer of 2022 for Moscow and the region

Results

If the malfunctions described above occur, check the condition of the throttle valve. Cleaning it is not very difficult. However, if you clean it, the dynamic characteristics of the car will improve significantly. Therefore, do not forget to regularly clean the damper every 30.50 thousand kilometers. As for cleaning products, use any of the ones listed above. Fortunately, they are inexpensive, so they are available to any car enthusiast.

Cleaning some car systems is a mandatory task for the modern car owner. The fact is that Russian operating conditions do not spare certain components of the vehicle. Poor quality gasoline, not very careful operation, dubious origin of materials for maintenance - all this imposes certain difficulties on the operation of the machine. The fuel supply system suffers especially, as it takes on the blow of all factors at once, including harsh climate. Cars have a hard time in Russia, and we have to agree with this. But there are a number of ways to protect your car from problems or return it to its original working condition.

The first thing a car owner needs to remember is the quality of service. Buy original oil, which can cost several times more than universal oil. This way you will protect the engine from many unpleasant influences. It is also worth using good gasoline, which is often not the cheapest. If problems have already arisen, you need to start cleaning the car, and then draw conclusions about proper maintenance and operation. The most common problem in Russian cars is a clogged throttle valve. Let's consider the features of this trouble.

Recommendations for choosing components

Insufficient driver experience and a wide range of spare parts are the main factors that make it difficult to select and purchase components for the Lada Granta.

Cheapness is the first sign of low quality workmanship.

When purchasing, carefully check the catalog items and search indexes with the actual data specified in the operating instructions. If you do not have experience in servicing equipment, use the services of certified service stations and demand a quality guarantee for the work performed.

What benefits does cleaning the throttle valve in your car provide?

Cleaning any component of the machine allows you to return to high-quality operation of the equipment. This is why oil and fuel filters are replaced, small systems and important components of your car are cleaned during the service process. But the standard maintenance procedure does not include flushing the throttle body. The problem of clogging this element can occur on any car, because every internal combustion engine uses this unit to distribute fuel among the cylinders of the power unit. Cleaning the throttle valve may be necessary when the car shows the following problems:

• at idle speed when the engine is warm, the tachometer needle floats, changing the speed range;
• on an automatic transmission, jerking becomes noticeable, especially when switching from first gear to second;
• fuel consumption increases - often the engine begins to consume 10-20 percent more gasoline;
• Certain tremors appear at idle or when the unit operates stable at the same speed;
• the engine pulls worse, there is a delayed reaction to pressing the gas pedal or the car “chokes”;
• Dips may occur (most often on a manual transmission) when accelerating.

Such symptoms obviously will not please the car owner, because the vehicle begins to behave unpredictably, and also consumes much more expensive fuel. Therefore, in such a situation, the car owner often goes to a service station, where they are happy to perform a huge range of work to replace all filters, clean all modules and peripheral devices. In fact, it was enough to clean the throttle valve, but no one will tell the motorist about this. You understand that the service station business is specific.

How to flush the throttle valve yourself?

Despite certain difficulties in performing this task, it is quite possible to wash the throttle valve with your own hands. To do this, just read the normal manual for this process, as well as acquire all the necessary materials and tools. The process of flushing the throttle body will look different on different cars. For example, on carburetor cars it is much easier to complete this task, but the carburetor must be cleaned regularly. But in modern injection power units, flushing the damper is not so easy. However, nothing is impossible. To complete this task you will need to do the following:

1. remove the pipe leading from the air filter directly to the throttle valve;
2. Next, follow the instructions to dismantle the throttle - often it is enough to unscrew four bolts;
3. We put all the fasteners carefully in a box so as not to lose them, because purchasing them will not be an easy task;
4. To flush the throttle valve, you can use special products (for chokes or carburetors);
5. All internal parts should be washed until they are shiny, then allow the system to dry completely;
6. put all the components in place and carefully tighten the fastening bolts, then do not rush to close the throttle with the lid;
7. insert the key into the ignition switch and turn it to the stage of switching on the ignition directly, but without starting the engine;
8. Make sure the throttle valve closes completely after warming up (it will take 5-15 minutes to warm up).

After this, you can close everything with a clear conscience and test the car for changed parameters. In general, the procedure for cleaning the throttle valve takes about an hour, but the first time everything may take a little longer. The main task of the car owner is to correctly and accurately follow all instructions. Many people ask the question what to do if the valve does not go into place after the procedure. In this case, you will have to go through the process of “learning” the throttle valve, which is worthy of a separate instruction. But this process is best performed by specialists.

When is the best time to flush the throttle valve at a service station?

A service station today is not a motorist's best friend. Due to the huge number of these companies and the incredible competition, they try to squeeze everything they can out of the visiting driver. That’s why there are even legends about some service stations. The client came to change the oil and left with a new engine. However, in some situations it is impossible to do without the participation of a professional company. In particular, it will be very difficult to clean the throttle valve yourself if the following features occur:

• the car is new, belongs to high-tech developments - in such a car you won’t even get to the valve;
• the car is under warranty - if you try to clean the damper yourself, you will lose warranty service;
• you are completely far from plumbing, you have never held a wrench in your hands - it is better not to experiment;
• at a well-known service station you were offered a more or less affordable price for flushing the entire fuel supply system;
• Not only is the valve clogged, problems also arise due to poor functioning of the injector;
• you simply don't have the time or suitable space to perform the procedure yourself.

If you don’t have the time, tools or desire, it would also be better to pay specialists and get more or less high-quality services with some kind of guarantee. Of course, talking about a guarantee from modern service stations is not very pleasant, but the responsibility of the master to you personally is present. You need to choose a normal service station to get more advantages in completing your task. Only professionals should be trusted to work on your car. We suggest watching a video with the process of cleaning the throttle valve using different means: