The machine stalls on the move: the reason. Causes of engine shutdown and solutions

This article will tell you why the car stalls on the go. The reason for this phenomenon can be the most banal, but you get a lot of trouble from this "behavior" of the car. In addition, the engine can stall and idle. Pleasant in this little, the engine seems to start, but after a while stops working. It is possible that the engine does not want to start if its temperature is close to the operating temperature. The operating temperature of the engine is about 90 degrees. And there can be many reasons, but you need to consider the main ones.

The most common reason

It is worth paying attention to the fact that all reasons can be divided into several categories. Why is the machine stalling on the go? The reason can be either trivial or complex. If we are talking about injector engines, then very often the controller that is responsible for the idling speed breaks down . It is he who supplies the required amount of air to the fuel rail. The idle speed regulator is a stepper electric motor, it opens and closes the duct through which clean air passes into the ramp for the mixture formation. So, the first thing you need to make sure of the serviceability of the idle speed regulator. To do this, it is necessary to scroll the crankshaft with a starter, while simultaneously depressing the accelerator pedal. The motor starts at this, but the number of revolutions is constantly changing. There is a breakdown of RHX - the motor stalls when you press the gas. And the most effective way to get rid of such trouble is a complete replacement of the element. You need to install a new idle speed regulator. VAZ cars do it in a matter of minutes.

Throttle valve problems

Quite often, the reason that the engine starts to stall is the throttle itself. It is possible that the air filter was worn, so inside the whole surface of the flap was contaminated. To fix this breakdown, it is enough to completely clean the inside of the damper. Note that after thorough cleaning, the problem may persist, but the engine stalls when the gas is pressed. In this case, make sure that the position sensor is in good working order. This sensor is a variable resistor. It is mounted on the damper shaft. And the maximum wear is observed in the extreme position (corresponding to the idling speed). If it fails, it must be completely replaced. The cost of the part is quite low, and the replacement takes place in just a few minutes. But it is possible that the engine begins to stall, despite the fact that all sensors are in perfect condition.

Fuel quality

Always keep an eye on what kind of gasoline you are running your car. In most cases, all of the above symptoms appear when you fill the tank with fuel. Of course, the engine can stall and after a while. Therefore, it will be difficult to determine immediately the failure. It is also worth paying attention to: the reason that the engine starts to trip, to stall, it is worthwhile to search always in the gasoline itself. To cure this "disease", you will need to completely drain the gasoline from the tank, and replace the fuel filter. Unfortunately, at gas stations you do not always buy quality fuel. Therefore, it is worth choosing one brand of the manufacturer, which sells the highest quality gasoline. Of course, there are times when the car stalls on the move (the reason for this is not in gasoline). Pay attention to the fact that excessively low cost is the first sign that petrol is of doubtful origin. And pour it into the tank - this is equivalent to sending the car at full speed to the pole.

Spark plug

To make sure that the spark plugs are working properly , you need to unscrew them all, check the gap size, and the presence of carbon deposits. And your car stalls on the move. The reason can be hidden in candles. In the event that there is a strong deposit, but the gap is within the allowed values, it is necessary to clean the candle electrodes. But the best way out is to install new candles. In the same case, if the gap is very large, there is excessive wear of the electrode, cleaning does not help, you need to completely replace the set of candles.

Fuel filter

But there is still a very common reason that the machine stalls on the go. VAZ or foreign car - it does not matter. But this is especially true for old cars. Some drivers simply forget that there is a gasoline filter in the car. It is located in the bottom of the fuel pump. Of course, if there is dirt in the filter, gasoline will not enter the fuel rail and combustion chambers. Necessarily there will be interruptions in the supply of fuel. At the same time, you, by pressing the accelerator pedal, muffle the engine. To get rid of this malfunction, it is necessary to remove the gasoline pump and replace the filter. Also it is worth considering that the tank itself can cause a fast clogging of the filter. Therefore, either a capacity change or a thorough cleaning will help.

Air filter

A similar situation, as in the case of a gas filter element. Please note that the operation and repair of the car must be carried out in accordance with the requirements of the manufacturer. After all, you know that a mixture of gasoline and air is fed into the combustion chamber. Therefore, if some component of this mixture does not enter the fuel rail, the engine will stall. Consider an example of how a motor works when there is not enough air. The combustion chamber gets too rich mixture, as a result of which candles are poured. Thus there is such sensation, as if the engine does not have enough air, it chokes. Among other things, some motorists who do not know the principle of the internal combustion engine can cover the inlet branch with a cloth so that no water gets into it. It's funny, but it happens.

Fuel pump

If the petrol pump does not work, then, of course, the car stalls. The carburetor will work perfectly, but nobody gives it to him. On injection cars, the fuel pump is located under the rear seat. On the carburetor - near the camshaft (since it has a drive from it). If it stops working, the engine can run at idle speed normally, but with an increase in speed it will stall necessarily. However, with complete wear of the petrol pump, the engine will not start at all. To get rid of this malfunction, you either need to repair the pump, or replace it completely, which is most effective. As for carburetor motors, the actuator diaphragm drive rod can wear out heavily.

Electrical equipment

The problem of stopping the motor is also possible in the malfunction of the electrical equipment. In particular, oxidation at the terminals of the battery can occur. Even old cars, though new ones, all need maintenance and thorough care. Consequently, the contact deteriorates, as the resistance increases, and this leads to the fact that the engine stalls. Also, the battery itself may be damaged. In the same case, if the generator does not produce the required current, the entire electrical network of the car switches to battery power. If you do not see a burning lamp immediately, signaling that there is no charge, the car will continue to move. Taking into account the fact that the light will be switched on and the ignition system running, after a while the battery will be completely discharged and the engine will stop. Have to recharge the battery, as well as completely repair the generator.