Why does the engine do not gain momentum. Why the washing machine does not gain the turnover of wear of the piston group

During the operation of your car, many drivers begin to notice that the engine is not gaining properly momentum. Accordingly, the speaker falls, the possibilities of maneuvering, overtaking are reduced. To put up with such a problem is impossible.

The reasons

The causes of the absence of a proper set of revolutions can be several:

• There were problems when air supply;
• Ignition failed;
• Fuel system malfunctions;
• There were problems with the exhaust system.

The problems with the fuel system are widespread for gasoline engines. They are the most common. Therefore, it should be started with its check.

Fuel system

If problems arise when overclocking the auto, start checking from the inspection of the fuel system.

1. Most often, the engine ceases to gain momentum, as the fuel pump fails. At first it can affect slightly, sometimes imperceptibly. Over time, with the wear of the pump, turns will begin to fall, power, the dynamics of acceleration will be reduced.
2. With partial breakdown of the benzonasos, it still partially performs its functions, but the former volumes of fuel are no longer capable. From here there is fuel fasting, power drops.
3. The optimal solution to the problem with the pump is replaced. Repair is better trusted to specialists.

Ignition

If the ignition fails, there will be a comprehensive check of all system nodes that can cause the power drop and motor revolutions.

What to check	Features
Check marks TRM	If the labels are installed incorrectly, the fuel will start to be injected in a timely manner, the correct frequency of the spark feed will violate
	You will have to check all sensors that participate in the operation of the ignition system. Special attention Plug the crankshaft position and camshaft sensors. The usual test allows you to quickly determine whether the sensors are really to blame
Timing belt	If the belt is used on your car for a long time, the operating period may come to an end. Or when replacing it, it was incorrectly installed. After all, it is enough to be mistaken on one tooth, and the working capacity of the car will break, the car will not be able to accelerate properly
Spark plug	In some cases, they do not allow the machine at all while malfunction, but sometimes lead to a noticeable drop in power. Remove them, check the condition, clean, measure the distance between the electrodes. If they failed, just replace new

To finally make sure the availability or absence of problems in the ignition system, it is recommended to carry out more detailed diagnostics.

Diagnostics

We offer to familiarize yourself with several steps aimed at diagnosing the state of the ignition system. It can help determine why the engine is not gaining momentum.

1. Make sure the electronic control unit performs its functions. First of all, turn on the ignition and listen, whether the fuel pump is included.
2. Measure the pressure in the fuel line. If the readings are placed in 2.5-3.0 kg / cm3, then everything is fine.
3. In the case of normal measurements, check the Bitstop parameter using diagnostic devices when turning the crankshaft. If "no" parameter is specified, then the ECU receives the command about creating a spark on candles and works well.
4. Using a high-voltage arrester, you can check the presence of spark. After all, worn, contaminated candles are not rarely watered.

Air flow

The engine is not rarely deteriorating due to the violation of the normal air supply to the creation of the fuel and air mixture.

If the air turns out to be greater, the mixture will be poor, since the amount of oxygen will exceed the amount of fuel. Hence the drop in power, reduced traction.

The easiest way to solve the air supply problem is a replacement air filter. In order to prevent and prevent problems, this element should be changed twice a year.

If the engine turnover increases, but the speed does not increase at the same time, there are several explanations of the explanation to this phenomenon:

• IN fuel system too small pressure;
• Violated the work of DMRV. The sensor is most often returns to the former performance after cleaning. If it does not help, replace;
• The air filter clogged. It is better to replace it;
• The nozzle was stuck. This is connected mainly with low quality fuels that you are fueling the car.

Material in the topic:

Exhaust system

Significantly less often the drop in power and revolutions can be caused by problems with the exhaust system.

To make sure that check the condition of the catalyst for the absence of contamination, clogging.

It is pollution that is clogged with a catalyst, which is why all the possibilities, the car cannot squeeze all available power.

It is impossible to say that VAZ 2110 has a very capricious motor. Although it depends largely on what exactly force aggregate Located under the hood of your "dozens". The first versions were not distinguished by reliability, but with time, engineers managed to achieve a certain progress.

If the engine of your car is not gaining momentum, or it doesn't cope with it, stopped pulling, sneezes, ikaet, you agree it is very unpleasant. Let's try to figure out here, what causes the causes of such an unhealthy behavior of the motor, which we assure you, there is a great set, starting from some wiring or nozzle, to very delisting hassle with iron or electronics.

The most frequent causes of bad thrust of the motor and rollery set

1) Malfunction or in the fuel supply system itself, or its worn. Like gasoline and diesel engines, this item is always first checked if the engine stopped pulling and / or began to gain momentum.

In gasoline engines, the fuel pump is most often out of order, so the first thing is to check it, and it doesn't matter what it is type, mechanical or electric, from the life of the examples is enough. Here, for example, one: the driver on the Passat, equipped with Monovprom, came to the service, complaining that the thrust was disappeared. What do you think it could be the reason? True, the fuel pump slowly began to fail, as a result of which "malnutrition" of fuel began, and the engine, when starving, not so vigorous. What should I do? Check the fuel pump itself, and if everything is in order, it is also to watch the distribution and fuel and supply organ, that is, injection, carburetor, monofryd or injector.

And what about diesel engines, in most cases, when the equipment with nozzles fails, the problems that are described in the title begin. The ending of the nozzles sprayers and the failure of PTNVD plunger pairs can lead to a significant loss of the power of the motor, and right up to the fact that the latter will stop at all. And if the check showed that the equipment with nozzles is alive and you are sure, and the motor is hard, still, does not want to gain momentum, then most likely, you later ignite, which means you need to dig in the settings with The angle of ahead of the ignition, or rather make it before. In the fuel system of the diesel engine, the air drums is a real evil. It begins to suck both through the killed sealing washers, which are copper or aluminum, and through a small hole, which appeared in one of the hoses of the fuel supply assembly. In general, it is necessary to find and neutralize the sublicas. Fuel filters, which in an even extent refers to diesel engines and gasolines, if they have not changed them for a long time and they are clogged, then the thrust from the motor in this case can not be expected. It is necessary to clean, or change the filters, "clearing" the pinch in your nose.

2) Let us turn to the next reason - the ignition system malfunction. It is necessary to find out here, whether your motor does not trite if the troit can find the appropriate article on our website, and read. So, if it does not troit, then you should start with a simple, with a playmbore. First, on the engine running, you should twist it, and try to catch the moment - if this is the same, when the motor starts to work more. If you do not work out, then inspect the candles and wires carefully, and so electrical knots. If you have an injection type motor, then starting to start with timing tags, for it is from the correctness of their installation injector engines The moment of filing, both sparks and fuel injection, depends. Further, if everything is ok with the labels, then some sensor came out of the order. If you do not know, then in the injection motor, the number of sensors and the sensors of the darkness darkness there! The list includes sensor mass flow air and position sensor crankshaft, and camshaft sensor, and lambda probes, and sensor idle moveYes, everyone is simply impossible to list them. That's all this "extras", and to check for the performance of either you yourself or an autoelectric, if you contact him. Another topic: if your motor started to gain momentum badly after updating the belt or the timing chain, then it is probably mistaken when installing, since the tooth is left here, or the right plays a huge, crucial role, eventually an error just one tooth can deprive you when pressing gas to the floor, and instead of the "jump" from the place with a slip you will only get an uncertain, miserable shift from the place with such a "bonus" as increased flow Fuel.

3) Next reason is a problem with air supply. Also fraught with loss of air drowsing power on the way to cylinders, which comes after a mass flow sensor, for the computer constantly calculates the composition of the fuel-air mixture based on the testimony that is based on the number of air received. So, this data is transmitted to him DMRV, and if the air will be more laid, then, as a result, the depleted mixture is guaranteed weak pull Motor. Air filter, which is desirable to update once every six months, but they come across the clever, which they do not change it. As a result, we get difficulty intake, the engine that does not gain momentum and does not produce the laid power, and black smoke. So that, simple replacement The filter will solve this problem.

4) Finally, completing our overview of the last common problem, which happens due to the fault of the exhaust. So, before getting into the ocean of prose on this topic, we would advise you to check the condition of the catalyst if it is still worth it. Consider another example from the Audi, from which it follows that if it is clogged, it is sad. So on Audi 100 C4, with a 2.3-liter five-cylinder engine was the case when he did not gain momentum, 4 thousand on the tachometer it was the limit! The masters broke their head for a long time, as a result, just in case they checked the catalyst and thrown it out, and the motor became like a beast. It seems that for many it is no secret that the motors with the missing exhaust system are produced by 10-17% more power - depending on the model, and in this regard, in the world of automobile tuning, such a device is known as "forward flow". This is a slang cutting from the concept of directing exhaust, that is exhaust pipes With an increased diameter, and a catalyst forgotten and slag, it is, on the contrary - for the "Antiteuning" motor, well, it is for general erudition. And now let's get to prose, also a real case. Motor Kamaz was brought to the overhaul, the reason: power disappears, and the revolutions are not recruited. Opening the head showed that there is a "cover" motor, apparently, he drove the oil well, and the oil is in addition, and then tramored just inside the exhaust manifold! As a result, on the walls of the exhaust manifold, Nagar had an unmeasured amount, only a hole with a diameter of almost four cm remained, and it is equivalent to the fact that a person has constipation, and it is not treated without outside interference!

Many motorists faced the problem of unstable engine operation: not gaining momentum, does not develop enough craving, sneezes. It is necessary to urgently look for problem problems, otherwise the motor can simply "die".

Possible malfunctions

Why does the engine do not gain momentum? The reasons for unstable operation of the engine may include problems in various systems of the car and (DVS).

Among possible faults In electrical circuits and electronic sensors, reading OBS parameters, the state of the gas distribution system (valves, drive mechanisms distributional shafts), the serviceability of the crank-connecting mechanism and, fuel supply and purification systems, intake and exhaust system.

Interesting to know! If you have an electronic ignition system control unit on your way, you can reach the nearest service station using the Hall sensor, which is located next to the electronic control unit.

Electrical part

Pay attention to the rubler, the ignition coil and high-voltage wires. Measures on the wires (for the subject of the cliff) do with an ohmmeter or a control light. If the glow of the bulb is missing - look for a wire break.

Ballast resistance can also cause the engine badly gaining momentum. The ribbed unit under the windshield is a ballast resistance. Having found a malfunction in ballast resistance, it is necessary to replace it immediately, since it is not subject to repair (you can, of course, try to repair it in a specialized workshop).

Check the traver body for mechanical damage and chipping, coal contacts of the central electrode. Resistance to the lugs of the candles check the melometer. If the problem persists, try adjusting the ignition advance angle. By installing a rubber into a neutral position, slowly turn it left / right - the engine operation will change.

One of the reasons why the engine does not develop revolutions is the fuel system. In the fuel supply system for petrol engines One of the main roles playing fuel pump. You should also check the fuel filter (if necessary - replace it). The filter may not pass fuel due to the presence of water or mechanical impurities in it.

Diesel engine work depends on work fuel equipment and nozzles. Failure of sprayers nozzles or plunger steam fuel pump Influence the power of the engine, up to the point that the motor does not start at all.

Ensure that there are no fuel leaks in the fuel system. When leaking fuel, look for the cause in leakage. The fuel filter of the diesel engine in the summer may not pass the diesel fuel from behind the water that has accumulated in the filter, and in the winter, due to the use of poor-quality winter fuel, there may be paraffin deposits, therefore it should be changed.

Engine electronic control system

Modern engines to ensure low fuel consumption and high car acceleration dynamics have a lot electronic systemswhich determine the position, detonation of fuel in the combustion chamber, the position of throttle and air dampers, depending on the temperature of the engine and the external temperature, on which mode does the engine (overclocking or roll - a system of forced idling).

The state of these systems affects the quality of the engine, its economy. Sensors of these systems are located in various places on the engine and the workpiece, and the operation of the car depends on their high-quality work.

Other reasons

For reasons not directly related to the state of control systems and engine operation adjustments, problems with air supply systems may relate exhaust gases, Fuel quality.

On condition inlet system It affects what conditions the car is operated. When moving in zones with high dust content replacement air filters It is necessary to produce more often than the manufacturer recommends.

When the filter is "scored", there is a depletion combustible mixture In engine combustion chambers.There is incomplete combustion of fuel, or, as they say, the engine overflows. In the candlelight is formed a nagar, the traction characteristics of the engine will deteriorate.

If during operation weakened the fastening of the elements of the intake system, the "SUPPLC" of the air, the exhaust gas recirculation systems are incorrectly operate, the fuel mixture is imposed due to excess air, the engine does not develop full power. In this situation, it is necessary to check the condition of fastening the intake manifold and the carburetor.

Exhaust system

Attention! If the machine has a catalyst, then check the exhaust system from it. Check the status of the lambda probe, the condition of the catalyst, is not "scored" whether it (due to the poor quality of the fuel on it can form a naar). With a faulty catalyst, the exhaust gases from cylinders will not completely exit, which will lead to poor filling of the combustion chambers by the air-fuel mixture and lower the engine power.

With a violation of the tightness of the adjustment of the exhaust manifold to the cylinder unit will break the exhaust gases in podcast spaceWhat can lead to engine overheating, incorrect operation of electronic systems. This problem can be eliminated by tightening the collector or replacing the gasket under the intake manifold.

High-quality fuel is the key to the health of your car. But none of us is insured that there will be no low-quality fuel on some refueling. Sometimes with poor fuel, the motor is not just junk, but also refuses to start. In this case, all fuel merge, and rinse the tank. About bad fuel will be told by the engine candles: if there is a redhead flare on the contacts of the candle and the "skirt" of the central electrode, then the fuel is good. Black Nagar on the candle talks about low-quality fuels with a high content of impurities. Availability of Nagar worsens the quality of the candle.

The lack of engine speed when the gas pedal is pressed - the common problem with which most drivers faced. The reasons for this unpleasant situation are many: it can be like a transition from gasoline engine on gas-ballon equipment and simplest malfunction Motor. Let's study the reasons in more detail.

The engine does not gain momentum when pressing the pedal of gas: reasons

First of all, it is necessary to pay attention to the "symptoms" problem: when it shows itself, how, whether there are additional signals indicating a malfunction. It is possible that the engine is fully working and properly functioning it interferes with a sensor disconnected when repairing. Fix such a malfunction can after a short inspection.

If the engine failures occur without any serious reasons - Careful diagnosis is required.

Let us dwell on more for the reasons that the owner of the car can fix it.

Key Factor Reliable Engine Operation - Quality fuel mixes, features its receipt, fire and burning in the working area of \u200b\u200bthe motor. Violation of any of the above processes leads to problems with engine turnover. That is why in the failures in the DVS, the first thing to pay attention to is the operation of the fuel and oxygen system.

1. If the air filter accumulated dirt, a mixture of oil and sand, the air will penetrate the engine unevenly, which will lead to loss of motor power and, accordingly, to "missed" turns.

2. Violation in the operation of the intake system leads to an excessive air suction. A failure may arise suddenly, and can go to chronic stage. The flow of a large amount of air is impoverished with a mixture, it becomes too little flammable vapor. The motor in this case starts, but during the trip the car can not dial the necessary revolutions.

3. Lack of fuel in the engine. This problem is most often manifested due to filter clogging. Fuel is enough to start the motor, but it is not enough for a normal ride. As a result, the car twitches, poorly listens to the gas pedal. During the set of revolutions, the so-called "failures" are observed.

4. Mud accumulation on fuel pump filter. The filter is a small mesh, when oil deposits hit on it, the pressure increases in the system, a sufficient amount of fuel does not flow into the combustion chamber. When the fuel pump filter is contaminated, the engine begins to work with interruptions in almost all modes. When you try to gain traffic turnover, you can simply stall.

5. Ignition Candle Problems or Wiring, resulting in problems with flammable mixture. In this case, fuel is not flammable, the engine loses its power, and the system is not capable of gaining momentum. Candles can be grilled, mud can accumulate on them. Among the common causes of interruptions in the work of the spark plugs are damage to the casing and the incorrect installation of gaps on the electrodes.

6.
Open electrical wires connected to ignition candles. In this case, the engine troit, starts "times", the turnover of the engine is gaining with great reluctance.

Correction of these problems is not distinguished by complexity: it is necessary to check whether candles and wires sparkle; See the level of pressure on the pressure gauge fuel ramp; Remove the oily flare and dirt from the air filter; Change the filter to clean the fuel to the new one; Clean from mud sediments a gas-pump mesh, etc.

Engine turnover can fall for more difficult reasons, which will not work independently, as the repair requires special knowledge, experience and availability of diagnostic equipment.

Without the help of the car service can not do if:

1. Failure in the phases of the gas distribution mechanism of the car. If the engine was impaired in the engine, the fuel intake and the release of exhaust gases pass unevenly, the valves open with interruptions. Similar problem It often occurs after poor-quality replacement for replacing the gimproof drive belt, with improper adjustment of valves, failures in the operation of the gas distribution phase shift system and the failure of the timing chain.
2. Violation of coils or ignition module. The main "sign" of this problem is the engine begins to told, ignition skips in the cylinder system are observed, the number of revolutions decreases.
3. Failures in nutrition injectors. Most often, the cause of this malfunction is bad wiring. Electric signal does not reach the nozzle or reaches it not on time. Naturally, in such conditions, the nozzle cannot work correctly, because of which the fuel is flammable in the cylinders unevenly, the engine power drops along with the number of revolutions.
4. Problems in the work of the gas station. Unpleasant breakdown, developing slowly, but inevitable. As a result, the pressure being created is not enough to work the engine: the motor will stall.
5. Dirt hit to the injector. This problem can cause the use of poor-quality fuel and contamination of nozzles. The nozzles are recommended to be cleaned after 35-45 thousand km. Run.
6. The unsatisfactory state of systems responsible for the output of gases, first of all, the USR, soot filters and catalyst. The engine remains a large amount of carbon dioxide and gain in such conditions the required number of speeds motor is not in a state.
7. System failure system electronic control DVS, leading to a change in the composition of the combustible mixture.
8. You can not exclude the breakdown of the electronic control unit. This trouble may occur after poor quality firmware repair. The main problem of problems in the ECU is a hoppy operation of the engine, an unexpected amplification and a drop of torque.

A timely carried out uncomplicated service procedures like cleaning the injector, replacing candles or filters - excellent prevention of any engine problems.

For a car on gas, the key value is playing proper setting Motor and fuel supply systems.

When operating a car with gasoline or diesel engine Sometimes there is a situation when when you press the pedal of the accelerator of the expected increase in revolutions does not occur. A good force unit must instantly respond to an increase in the combustible mixture in combustion chambers with an increase in the frequency of the crankshaft revolutions, but if this does not happen, you need to look for a fault. Its reason can be both fairly simple and easily eliminated things and serious breakdowns.

The main causes of the lack of engine dynamics

The driver constantly operating the car easily determines the deterioration of the dynamic characteristics of the motor, which manifests itself in sluggish acceleration, bad crayIncreased fuel and oil consumption. These processes are often accompanied by the appearance of a SIZO or black exhaust. Most often, the following reasons serve as guilt:

1. Insufficient warming of the power unit.
2. Poor quality of the fuel used.
3. Air filter clogging and air supply system malfunctions.
4. Malcyal operations of the gas distribution mechanism.
5. Fault fuel failure.
6. Fault sensors.
7. Faults of the ignition system.
8. Weak compression in the cylinders.
9. Incorrect work of the car.
10. Specific motors of engines with turbocharging or carburetor.

Cold Engine

The dynamic characteristics of the power unit will not reach its maximum while working temperature The coolant will not rise to a value in 90 o C. The cold motor is unable to quickly develop turnover, for this, the air-fuel mixture in the combustion chamber should be heated. Otherwise, the engine will stroke, twitch and detonate.

Fuel quality

The use of high-quality gasoline or diesel fuel is the key to the long-term life of the engine and obtaining maximum power indicators from it. But none of the drivers are completely immune from refueling with poor-quality fuels, the use of which threatens not only a significant reduction in the power indicators, but also lack the ability to start the engine. The regular use of poor-quality gasoline is manifested in the intensive formation of nagar on cylinders, pistons, catalyst and in the graduate manifold, as well as in increased wear of the cylindrophone group.

Filter pollution

Excessive air filter clogging reduces the amount of air that can pass through it in the combustion chamber, which is why the engine power drops, and its work becomes uneven. A similar investigation causes a lack of fuel flow in the combustion chamber when the fuel pump malfunction or the difficulty of passing it through a highway or through fuel filters For various reasons.

Violation of the gas distribution mechanism

The breakdown or incorrect adjustment of the gas distribution mechanism shifts the gas distribution phases from the optimal point, and causes a sharp decrease in the engine power. This happens because of the incomplete release of cylinders from exhaust gases, or insufficient filling with air or air-fuel mixture. Resetting a chain or timing belt to one or more teeth causes a disruption and adjustment of the mechanism that provides the necessary ignition advance angle depending on the engine speed. A significant power drop is observed and when the timing valve is improved when they are lack of opening or not complete closure.

Fuel system malfunctions

With the problems of the power supply system of the gasoline engine, the loss of power is felt first. These include clogging of fuel filters, interruptions in the operation of the fuel pump, nutrition of the nozzles and the depressurization of the fuel line, due to which the engine feels a lack of fuel. In diesel engines, the most frequent fuel equipment malfunctions are the wear of the nozzles and the fuel pump, the depressurization of the fuel line, freezing the fuel in the fuel line and clogging the filters.

Fault sensors

IN modern engines To achieve a combination of high dynamics and low fuel consumption, readings are used. different sensorsdetermining the position of the crankshaft, air flow, detonation in the combustion chamber, the composition of exhaust gases, the position of air and throttle valves, external temperature. The data from them come to the ECU of the engine, and affect the mode of its operation. A malfunction of a sensor makes the operation of the power unit not optimal, which is manifested in the power loss.

Faults of the ignition system

Most often in the ignition system, the problems that reduce the power of the engine relate to the candles in which the gaps between the electrodes can be broken, there was a nagar on them or an insulator is damaged. The deterioration in the quality of the spark or its absence is often a consequence of the breakdown, violations of contacts or the integrity of high-voltage wires, ignition coils and distributor.

Worn piston group

For long operation The engine occurs natural wear of the piston group, which causes a drop in the required compression in the cylinders and power of the power unit. Excessive wear can occur when the piston rings occurs due to improper operation of the engine, the use of poor fuel and oil.

Problems in the work of the ECU

Management of all work processes modern car Exercises an electronic unit that collects sensor readings, and on the basis of the program laid in it regulates the engine operation. The functioning of the ECU can be changed by setting up various modes of operation depending on the required flow rate and type of fuel used, the operating conditions of the car and other characteristics. Problems in the electronic block or its improper setting can lead both to the loss of power and the impossibility of the operation of the engine itself.

Specific engine faults

Old models of cars having a carburetor are still quite actively exploited by domestic motorists. The breakdown of various nodes of such power systems is manifested in a noticeable drop in engine power, and has the following characteristic faults:

1. Flames of fuel pump causing a pressure drop in the system.
2. Hit into the dirt carburetor, which is why jets are clogged and problems with the work of the needle valve arise.
3. Incorrect adjustment of the composition of the combustible mixture.
4. Violations in the work of the carburetor dampers and the economizer valve.
5. Wrong work float.

Some models of new motors have one or more turbines, pumping air into the combustion chamber, thereby increasing the number horse powerthat the power unit is able to issue. Breakfast or violations in their work causes a sharp drop in the pickup of the power unit.

The engine power drop should cause a car diagnostics to identify a malfunction and complete elimination. Well, if the cause of the loss of dynamics will be such easily disposable causes, like poor-quality fuel, clogged filters or old spark plugs. But malfunctions in the work of the gas distribution mechanism, wear of the piston group and other more serious problems Require immediate repair, as they can lead to a significant breakdown and significantly higher monetary costs.