Tight brakes VAZ 2110. The brake pedal is not pressed. Tight brake pedal - what to do

In today's article I want to talk about torkefather pedals, Namely, what kind of it should be ideally, tight or vice versa soft, how to find this golden middle?

By and large brake pedal May have several positions and states.

The state is the first - which is provided by the manufacturer when when you click on brake pedal There are no failures, no jerks, and it is not necessary to make any special efforts. There are also two other troubles unpleasant for the driver's pass who are able to cause worrying from the driver.

There are in mind the state of the pedal, when it is overly tight or opposite, strongly soft. And one and second phenomenon is equally unacceptable and indicate faults and the need for urgent repairs. brake system.

Tight pedal brakes It may become for several reasons, and they may not necessarily be associated with traditional "sores", which are characteristic of all models of brakes. However, I still suggest to consider the most common of them, and I will also try to give delivel tips on their elimination.

2. Singing the valve body in vacuum amplifier. It is necessary to replace the vacuum amplifier;

3. The diaphragm of the vacuum amplifier is damaged. Solved by replacing the vacuum amplifier;

4. Faulty Vacuum Amplifier Tip. It should be replaced by the tip;

5. Singing or non-reverse valve in vacuum amplifier. To eliminate, it is necessary to replace the check valve;

6. The check valve of the vacuum amplifier is defective or the tightness is broken, as a result of which fuel comes into the vacuum amplifier chamber. It is necessary to replace the vacuum amplifier with the check valve;

7. Hose damage that connects the vacuum amplifier and intake manifold, or weakened on the fitting fastening of the hose. It is treated by replacing the hose, or if it is possible - the attraction of the fastening clamp. The state of the hose should be regularly monitored, this especially concerns the cold season. As long as the hose is cold, it retains the necessary rigidity - the brakes function normally. However, after several tens of minutes of operation of the motor, the hose heats up and becomes more elastic. If, for example, when inspected, you did not find bundles - the hose bandwidth will decrease, which in turn can cause problems with the brake pedal.

8. The sealing rings in the working wheeled cylinders were sweeping, it does not rarely occur as a result of entering the surface of fuel and lubricants, or as a result of the use of poor-quality brake fluid. To correct this situation, it is necessary to repair workers brake cylinders, and replace brake fluid

Here are some ways to independently check the performance of the vacuum amplifier.

First of all, in order for the system to be discharged in the system. After that, press the brake pedal if the pedal is hard - this explicit sign Faults of the hose or amplifier. Then muffle the motor and wait 5-7 minutes, do not press on the brakes.

It is necessary to specify the fault, for this click on the pedal. If it is still rigid - most likely, the fault lies in the valve of the vacuum amplifier.

There is also another test. For disabled EngineIt is necessary to squeeze the brake pedal several times in order to remove the discharge in the brake system. After that, without releasing the pedal, you need to start the engine if the pedal starts gradually drop down - the amplifier is in order.

Cause of soft brakes

The soft pedal of brakes, as a rule, testifies simultaneously about several breakdowns in the brake system. More precisely, there are many reasons why the brake pedal can become soft. Sometimes such a phenomenon is also called the failure of the brake pedal.

Today we will deal with the fact that the brake pedal began to firm or opposite very soft . Automakers provide such behavior of the pedal when it does not occur no failures, not vibrations on it, and to include a braking system, it is not necessary to apply a lot of effort to the pedal.

However, moments occur when its behavior is caused by concern. Either, or vice versa, becomes an overly tight. Both of these options are not allowed and talking about the technical problems of the brake system.

Brake pedal has become solid?

For the creation of the necessary pressure in the brake system, the vacuum amplifier corresponds to the brake system, respectively, with its incorrect operation, the driver is simply not a pedal:

• Blown air filter Vacuum amplifier. The solution is to change the filter element;
• Slined the valve body in the Vacuumnik. Will be assembled;
• Damage to the rehabilitation diaphragm, here you can not do anything, you have to change;
• Tie malfunction. Again the replacement;
• Incorrect check valve. Solved his replacement;
• Violation of the tightness of the system. The depressurization may occur due to damage to the hose connecting the intake manifold and the "vacuum", weakening the clamps. In the worst case, the replacement of the hose is solved, in the best - lift of the clamp;
• Boarding sealing rings in one or several working cylinders. This happens due to the use of low-quality brake fluid, or ingress on the rings of fuel and lubricants. The bulkhead of working cylinders is now hardly anyone burdens, it is easier to replace them with brake fluid.

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Diagnosis of vacuum amplifier

In addition, when the system is deployed on the engine, a characteristic hiss of the vacuum amplifier is heard.

To specify the malfunction, turn off the motor and wait a few minutes without clicking on the pedal. If after this time the pedal remains tough, most likely due to the reason in the check valve.

Proper work of a vacuum amplifier diagnose very simple. For this, not a calling car, the pedal should "pump", then, continuing to hold it, start the motor. If the "vacuum" is working, the pedal will go down.

Brake pedal fails

There are several probable causes of increased softness of the pedal and the most common - air penetration into the brake system. Air can get due insufficient level Brake fluid. To remove air, it is necessary to properly pump the brakes.

Soft pedal It is also due to malfunctions of the main or working brake cylinders, for example, due to the booster of the brake fluid or crossing the pistons.

Regardless of that brake pedal, it became solid or soft, it should immediately automatize any driver, continue to move on such a car, means to expose the danger not only myself, but also others. And if you remove the breakdown in place is not possible, it will correct to contact the nearest car service.

The brake system is an integral part of the safety of any car. If suddenly the brake pedal became solid or too soft, then this reason to think about the need for careful inspection.

The quality of the operation of the brake system is most often told by those external elementsWith which the driver interacts while driving. It is the free move of the brake pedal, quite comfortable for his leg, provides good management car. In general, there is a solid brake pedal, soft or medium. There are several reasons for each.

Too rigid brake pedal is not always such a number of standard and usual causes. The problem may be in the specifics of a particular model. Sometimes situations occur when a solid brake pedal is a banal feature of a particular manufacturer. The same big stroke of the brake pedal is also peculiar to some of its types. When the brake pedal is not returned, this is a huge problem.

If the pedal is oak brake, that is, it is quite tightly pressed, then there are two options here - either visit the car service, or try to solve the problem itself, which is a considerable risk. In general, there is a decision immediately, since riding with it is very dangerous not only for the driver itself, but also for others.

There are eight most common causes:

All of the above is primarily indicating that only in the case of poor car care, a variety of unpleasant situations appear. For example, it is necessary to regularly check how well the vacuum amplifier does.

For such diagnostics there are a number of ways:

• The first way is to turn on the engine and give it to work until the system is completely discharged. If after this pedal brakes oak, then the problem is in the hose or amplifier. Then you should stop the work of the engine, let him stand for a few minutes, and then again check the operation of the system and trace the process of this process from "A" to "I". If, after such a procedure, the braking system clearly lacks "ease" during its response, then the amplifier valve is most likely to blame;
• The second way is to press when not working engine, in order to remove the discharge and completely discharge the brake system. Then you need to turn on the motor without releasing the pedal. When the amplifier is in full-fledged working condition, everything is fine. Otherwise, it is necessary to check the performance of its details.

Why the pedal is soft

Due to certain problems, the brake pedal pedal may also be faulty. Such a nuisance can go "in complete set"Together with other concomitant. Very often soft brake pedal is the direct cause of a significant deterioration in the car control.

Soft brake pedal can be a simple feature of the model. The cause of faults may be air from entering the corresponding system. It is fixed all by pumping the brake itself to secure it from possible troubleshooting.

In turn, the air can enter the system in many ways, and if there are problems with her, then he is most likely to blame. The pipeline may well lose sealing or even burst in this case. Because of the breakdown of the main cylinder, in which the brake fluid begins, the corresponding problems arise. The accompanying breakdown is often a piston jam. It is advisable to diagnose cylinders and check the braking fluid. Pretty good would also be held full check The performance of the machine to determine the presence of hidden problems, if any.

Video "Signs and malfunctions of a vacuum amplifier of the brake system"

The record shows how to replace the vacuum amplifier on the VAZ-2109 brand car.

Uninterrupted functioning brake system car (TC) - the security deposit of the driver and others surrounding it on the road. Any freelance behavior of the brake (main or parking) is a reason for immediate repair. The repair of the vehicle is preferably in the car service, since only experienced "pros" can say with accuracy what happened to her in fact. After all, the reasons for the same problem different cars There are absolutely different.

An example is the situation when the brake pedal has become solid so that it is necessary to make unnecessary efforts to move it from the place and carry out braking.

Such a malfunction is no less dangerous than weakening the pedal, as a result of which it fails. After all, both makes the car almost uncontrollable in an extreme setting on the track. The TC is a complex device, and its unsatisfactory work can be caused by different reasons, the most common of them are given below:

• malfunctions of a vacuum amplifier;
• rings swelling;
• pedal damage.

Malfunctions "Vacuumnik".

Vacuum amplifier brakes (VUT), or simply "Vacuumnik", creates a pressure in the vehicle necessary for their proper operation.

If the amplifier works badly, the pedal simply does not suck. Since a vacuum amplifier is a rather complicated part consisting of a variety of components, a malfunction of any of them can lead to this situation. And since the breakdown of the amplifier, as a rule, requires its replacement, the correct diagnostics will help to save the car owner not only the time, but also means.

If the filter element of the Vacuumnik clogged, it is enough to replace only it so that the amplifier began to function normally. This also applies to the damaged diaphragm of the vacuum amplifier, and tip problems or check valve. It is enough to replace one damaged component, and the TC will again act as a new one. It is important to accurately diagnose what exactly should be changed.

Sometimes no serious replacement is required. For example, in a situation where the vehicle was depicted. Sealing can be violated in two cases: either the hose between the "vacuum" and the intake manifold is damaged or weakened the clamp. And if in the first case the hose replacement is still needed, then in the second, the clamps are sufficiently tighten. This can be done in the car service, but the car owner is quite capable of cope with such a problem independently.

But it happens that the unsuitability of only one component fully leads to unusability of the VUT. With the greatest probability, this happens in a situation where the TC does not pay attention for a long time. As a result, a strongly damaged valve moves to such a position, which displays the whole "Vacuum". An example is the damage when the valve jars in the amplifier, and the latter has to be changed completely. This is one of the most expensive types of repair of the vehicle.

Blowing rings in the cylinders.

The state of the brakes depends largely on which braking fluid is used during operation. If it is a product of a well-proven company, the TC is rarely damaged or disabled. But if low-quality fluid, one or more cylinders can function badly due to the fact that the sealing rings will bury. The same thing happens when a fuel and lubricant makes a ring.

Previously, especially in the era of the Soviet automotive industry, the car owner sooner or later had to sort out workers cylinders. Such an occupation was long and burdensome even for professionals. But now it's hardly anyone will do it when the TC is malfunction. From the point of view of time saving, it is much easier to change them, and at the same time the brake fluid. However, it is possible to avoid unnecessary financial costs if from the very beginning to use high quality, albeit dear fluidSince the cost of repair is always higher.

Pedal damage.

Sometimes the cause of TC damage is a malfunction of the brake pedal itself. Defects are different, but they are all connected exclusively with mechanical breakdowns. Occasionally, brake pedals break or separated by levers. An unmistakable sign of such damage is a characteristic sound with a pedal pressed. Sometimes the pedal breakdown is caused by a very simple reason - causing a foreign body or a currged rug under it.

Methods of self-diagnostics.

You can determine the depressurization of the vehicle at once if the engine is unstable - "Troit". This is caused by air penetration inside the intake manifold. The air-fuel mixture falling into the cylinder with this failure sharply departs. A sign of a malfunction of a vacuum amplifier also serves as a hissing sound. To specify the breakdown, you should click on the pedal a few minutes after the engine is turned off. If the stiffness of the pedal did not disappear, then, most likely, the check valve was broken.

With a working vacuum amplifier "pumped" without launching a motor pedal with the start of the engine goes down.

Personal experience of car owners.

Alexei:

"I am a driver with a little experience, so it was very difficult to determine the cause of the firmness of the pedal. I could not even figure out how to remove this or that item to diagnose specific problems. In the end, I drove my audio A6 to the station maintenance. The masters working there determined the nature of damage even without removing the aggregates. The correct diagnosis helped me noticeably save on the repair. "

Ivan:

"When my Vaz 2114 broke the amplifier, I made sure that his malfunction simple way. For this, the hose is removed, and the amplifier is muffled. The presence of discharge when starting the engine indicates that the "Vacuum" is faulty. "

Novel:

"Vacuum amplifier and cylinders are very difficult to diagnose. Only those car services where there are pressure gauges can provide the best diagnostics of the vehicle.

Video.