As many people know, an internal combustion engine is a rather complex mechanism that must be regularly serviced and repaired from time to time. Otherwise, some problems may appear during the work. Drivers often feel that the engine starts more difficult to start, its power decreases, gas mileage increases, unusual sounds and vibrations occur, and the engine starts to work unstable.

It must be remembered that if the engine is troit on the VAZ 2107, this is a serious breakdown that needs to be urgently corrected so as not to lead to more complex problems. In this article, we will discuss how the breakdown manifests itself, what may be the reasons and how to eliminate them.

Five signs of triplet

It is very important that the malfunction is diagnosed in a timely manner. Then it is necessary to localize the problem as soon as possible in order to make repairs.

So, if the engine of a VAZ 2107 troit a carburetor, the reasons for this may be the malfunctioning of one of the cylinders. Sometimes several cylinders fail at once. In fact, this is due to the fact that for some reason the working mixture does not ignite in the combustion chamber of an inoperative cylinder, or it does not completely burn out.

We list five signs of triplet engine on a VAZ:

1. At idle, the engine begins to twitch and shake. Sometimes the shaking becomes so powerful that vibrations are felt throughout the body, transmitted to the steering wheel and even to the gear lever. With such a strong vibration, we are most likely talking about a complete failure of one of the cylinders.
2. Engine power is noticeably lost, the driver feels the gas pedal fail, jerks appear during acceleration, and fuel consumption increases. The "check" of the motor may light up. Of course, these problems also show up with other malfunctions. But this is exactly how the triad manifests itself.
3. The engine speed starts to float or jump. Fluctuations in rpm can be both minor and quite large.
4. If you look at the electrodes of the candles, you will notice black carbon deposits. Of course, this may indicate a malfunction and the candle itself. But if after changing the plug set, carbon deposits appear again in the near future, then there is another reason for the breakdown.
5. The exhaust system begins to operate with sonic "jerks" that transmit vibration to the body.

Even if you notice only one of these symptoms, you need to urgently understand what became the source of the breakdown. The point is, equipment malfunctions cannot be ignored. After all, delay can lead to more serious problems that will require expensive repairs.

Causes of the malfunction

Why does the engine troit on the VAZ 2107 injector?

If the driver observes signs of a malfunction in the operation of the cylinders, it is necessary to diagnose the operation of the power unit. There are five most common reasons:

• problems in the operation of the ignition system;
• violation of the formation of a working mixture;
• malfunction of the gas distribution mechanism;
• malfunction in the ES system;
• breakdown of the engine itself.

I would like to say right away that there can be many more reasons. And without high-quality diagnostics, it is not always possible to determine exactly what the problem is. But in this article we will discuss the most typical malfunctions for most cases, which in 90 percent of cases can be detected and eliminated by drivers on their own.

Reason 1: problems in the operation of the ignition system

One of the main reasons for the engine triple construction is a failure in the ignition system setting. If you listen carefully to how the motor works, you can hear pops accompanied by slight twitching of the motor, which indicates that one of the beats is missing.

If these signs appear at idle, but after the crankshaft is spun, the engine becomes stable, this indicates early ignition. This means that you need to adjust the ignition setting.

If everything is set up well, you can check the candles. In most cases, it is faulty spark plugs that cause the engine to triple on all VAZ models. The best option is to completely replace the kit with a serviceable one.

It is important to keep in mind that different spark plugs are suitable for different engines. For example, you need to pay attention to the glow number and other important design features. In rare situations, when it is not possible to urgently change the candles, but you need to go, you can temporarily clean what is there and make sure that the gap is set correctly.

Often, at the same time as the candles, the candle wires also deteriorate. Therefore, they also need to be checked and, if necessary, replaced.

It happens that the motor starts to triple after rain. This may indicate a problem with the BB. For diagnostics, you need to start the engine in the dark and inspect the high-voltage wires.

If a spark appears, this indicates that the insulation is broken. You can temporarily solve the problem by wrapping the sparkling section with electrical tape. But this decision is temporary until the nearest auto shop!

Sometimes the car starts to twitch only after warming up. It starts up and warms up stably. This could mean that there is a problem with the ignition coils.

Reason 2: violations of the formation of the working mixture

If the ignition system works like a clock, and the problem still remains, it is time to pay attention to the system for generating the working mixture. Perhaps it does not enter the cylinder. Or, for some reason, the fuel mixture does not want to ignite. The fact is that only with certain proportions of air and fuel does a spark lead to ignition. A lean or rich mixture will not burn. The engine starts to run unstably when cold and hot, at idle or under load.

The problem can be quite simple: a dirty air filter. Often it is enough just to replace it with a new one, as the car starts to please its owner again.

Fuel sometimes begins to flow in excess. This may indicate that the injector nozzles are starting to "overflow". So it's time to check the operation of the entire injector.

When a depressurization occurs, excess air can enter the system, which leads to a lean mixture. Airing is also caused by the fact that the operation of the vacuum brake booster is disrupted.

Reason 3: breakdown of the engine itself

In order for the engine to run stably and the working mixture to burn as efficiently as possible, the cylinders must be well sealed during the stroke. If the operation of the cylinder-piston group or the gas distribution mechanism is damaged inside the engine, this can lead to problems in the operation of the gas distribution system, which leads to partial depressurization.

If the piston rings are stuck or completely destroyed, if the piston itself is damaged, if there are scuffs or cracks on the cylinder walls or the valves of the gas distribution mechanism are burnt out, all this can lead to the fact that the piston simply will not be able to compress the combustible mixture normally.

To diagnose a malfunction, the compression in all cylinders is measured. If the compression ratio has fallen in only one of them, it will be enough to fill in a little oil there and measure again. When the compression is raised, it is possible to judge the piston malfunctions. If there are no changes in the compression level, then the valve is burnt out.

Sometimes the cause of low compression is a wrong valve adjustment. It would be nice to check the condition of the rocker or hydraulic compensator. A malfunction can lead to the fact that the valve simply does not fit snugly against the seat.

Sometimes, to fix the problem, it is enough to correct the general adjustments of the gas distribution mechanism. For example, it is important to monitor the timing of the valve timing.

Short summary

Whatever the possible reason, if the VAZ 2107 does not pull the motor, it is necessary to identify and eliminate the malfunction as soon as possible. After all, ignoring the problem can lead to much more severe damage and costly repairs.

The sound that appears when the engine triples can hardly be confused with something. Intermittent tapping is emitted from the machine, which indicates a problem with the engine.

Troenia causes a decrease in engine power, which does not indicate anything good. The car wastes more resources, and a pungent smell of gasoline appears in the exhaust gases. If you do not find and eliminate the cause of the triplet in time, a thorough repair or a complete replacement of the engine may be required, which will take a lot of time and an impressive amount of money.

Surely many car enthusiasts and owners of 2107 wondered why the VAZ 2107 engine troit the carburetor for a cold one? This effect appears due to the non-returnable wear processes of the components of the power unit. However, not everyone knows the places to search for the real causes of the breakdown, and even more so the options for eliminating a significant problem.

In the material below, we will try to answer in as much detail as possible the question of why the engine triple effect occurs.

Why troit engine on a VAZ 2107 - reasons

Troenia does not arise out of nowhere; in any case, there is a reason for its appearance.

Where to start looking for defects when detecting the triple effect of the engine:

• Piston group.
• Ignition system.
• Air filter.
• Valves and their derivatives.
• Carburetor.

After the readers of the article have learned about the possible places of breakdown, it is necessary to talk about how to get rid of the problem and avoid the consequences.

Troubleshooting methods

To eliminate the triple effect of the engine, the motorist will need some theoretical knowledge of the structure of the power unit, as well as skillful hands. In order to cope with most of the problems, a minimal toolkit will also come in handy. The following are the elements of the engine, in which the cause of triplet may be hidden, as well as ways to troubleshoot problem areas of the car.

The cause of engine triplet formation can be the wear of the piston and or piston rings, which are more likely to damage the cylinder walls, which causes scratches. One solution here is a complete overhaul of parts. Naturally, this is not a pleasant and rather expensive procedure.

The owner of the car will have to carry out a complete disassembly of the cylinder head and pallet. After that, you will need to pull out the pistons and carefully inspect the cylindrical walls - if you can see the development on them, then you need to completely dismantle the engine, and then, if the wear is really not small, spending on the required repairs.

Component parts of the cylinder head can cause triple formation of the engine. This is especially true for valves that have been in service for a long time and have a significant degree of wear, due to which they do not tightly contact the seat. As a result, the exhaust gases, when the engine is running, move back into the combustion chamber, as a result of which the engine suffocates.

Replacing the valves is required to correct this problem. In order to complete this procedure, a complete disassembly of the head is required. More often, the guide bushings are broken and they need to be replaced, therefore, the block head needs a complete repair.

To fix the problem, you will most likely need to replace all the component parts of the block head.

Finding out the reason starts with regulating the supply of the fuel-air mixture. Everything is adjusted using screws of quality and quantity, which corresponds to the recommendations in the instructions that come with the purchase of the VAZ 2107 engine.

If the adjustment does not work, then you will need to go through the carburetor completely. The VAZ 2107 engine is equipped with injection elements - Weber and DAAZ. This pair of carburetors has the same design, and therefore the repair kits for the elements are identical. Everything for carburetor repair is bought in specialized auto parts stores or in the auto market.

If any of the parts that make up the ignition system breaks down, the engine triple effect can also occur. In simple terms, no spark is ignited on one or several cylinders at once. To fix the problem, you need to diagnose the ignition system.

You will need to unscrew the spark plugs from the block head and examine them carefully. First, visually inspect for cracks, dirt or other problems. Next, ring the contacts of the candles using tests or a candle stand.

If there is a breakdown, then replacement is necessary with preliminary adjustment of the desired distance between the contacts.

There is also an old way of checking candles. It is necessary to unscrew the cylinder plug and connect it to a high voltage wire, and then, leaning the spark plug against the machine body, scroll the ignition.

If we talk about high-voltage wires, then their diagnostics ends with a check for the value of resistance. A usable wire is 5 ohms. If the indicator does not correspond to this number (higher or niche of the norm), then the wire will need to be replaced. It is better to replace a whole set of wires with a preliminary check for their performance.

You can test the ignition coil using a multimeter. Thus, you can check for the presence of contact and for the value of the resistance indicator. If a problem is found, a replacement will be required.

Malfunction	Cause of malfunction	Elimination method
Engine starts up with difficulty or does not start at all	1. Moisture and dirt on the coil and spark plugs, so there is no spark. 2. Looseness or oxidation of connector contacts. 3. Wet spark plugs (after frequent attempts to start the engine). 4. Loose fastening of the speed sensor - too great a distance to the engine flywheel. 5. Defective speed sensor; the wire has contact with ground and is open. 6. Defective ignition coil. 7. Defective power module or control unit.	1. Dry or clean and. if necessary, spray with spark plug spray. 2. Check and replace if necessary. 3. Remove and dry the spark plugs. 4. Fasten the speed sensor. 5. Replace at a car workshop; check the wire or replace it. 6. Replace the ignition coil. 7. Check in a workshop and, if necessary, replace.

Problems in the fuel supply system

Fuel delivery includes fuel filter and delivery pipes. Contamination of one of these engine parts can cause a small amount of fuel to be supplied to the carburetor.
To fix the problem, you will need to replace the fuel filter or thoroughly clean the pipes.

There is another element of the system that affects the normal flow of fuel - the fuel pump. If it breaks down, repair or replacement is required. After all the repair procedures, the fuel will begin to flow steadily, due to which the triple effect completely disappears.

Engine tropes can also appear due to contamination of the air filter, as a result of which the normal amount of air is not supplied to the engine to form an air-fuel mixture.

To save the engine, you will need to replace the replaceable filter element. There are no particular difficulties in this procedure. To implement it, you just need to open the hood, then unscrew the nuts from the housing cover and pull out the worn out filter. Replace it with a new replaceable element and return all parts to their original place.

Output: There is nothing difficult in finding the cause of the triple formation of the VAZ 2107 engine. It is best to start diagnosing the problem with the elements involved in creating the air-fuel mixture. Then check the ignition and fuel supply systems. And finally, the most dangerous cause of malfunctions may be the need for a complete repair of the motor due to wear of the elements of the piston group and the block head.

As soon as the number of working cylinders in the car has decreased, you can feel that the vehicle has become less powerful. There is significant vibration even at idle, while tremors can be heard in the engine compartment. Among other things, it is easy to notice that the consumption of gasoline has increased significantly, and when you bring your nose to the exhaust gases, you can hear the smell of fuel.

If you do not pay attention to such a problem in time, as a result, the engine may require a major overhaul. This action will entail a waste of not only time, but also significant funds.

Possible causes of the malfunction

If the engine is trodden on the VAZ-2107, this may be due to several reasons at once. And in order to eliminate the malfunction, you should perform the following actions:

1. Determine which of the cylinders is faulty.
2. Check all plugs for functionality.
3. Inspect all wires, nozzles, and valves.
4. Check how the air leaks into the carburetor works.
5. Check the operation of both hot and cold engines.

Finding out which of the cylinders is out of order is as easy as shelling pears. To do this, while the engine is running, remove the high-voltage wires one by one. But this can be done only if the engine is troit on the VAZ-2107 (carburetor). Of course, it will not be possible to find the cause of the breakdown, but it will undoubtedly be possible to determine the inoperative cylinder.

As soon as you remove the high-voltage wire that you need, voltage will cease to be supplied to the candle, and therefore the cylinder will stop working.

The next stage of work is to test the spark plug for performance. To begin with, after removing the candle, you need to carefully examine it. If carbon deposits are clearly visible on the candle, then, most likely, that is why the current does not break through. By the way, many car enthusiasts believe that it is enough to simply replace the candle with a new one. But in fact, in this way, the problem will be eliminated only for a while. It is necessary to find the reason why the candle has acquired such an appearance.

To do this, you need to check for a normal spark. A high-voltage wire is put on the candle, after which it is brought with its metal end to the engine body. After that, the starter is scrolled several times. If the candle is normal, a good spark should appear due to this movement. In the event that the spark did not appear, the following reasons are possible:

• breakage of a high-voltage wire or its breakdown;
• the ignition coil does not work;
• the electronic control unit is defective;
• the crankshaft position sensor is broken;
• the belt has shifted a few teeth.

But if the spark turned out to be in perfect order, but the motor still troit, the reasons may be as follows:

• defects or wear of the rings;
• violation of compression;
• malfunctions of injectors;
• improper valve operation.

The cylinder may not work because the injectors are out of order. Most often this happens due to a long drive on fuel of not the highest quality, or if "handicraft" devices were used to clean the fuel system.

In addition, the VAZ-2107 engine can also triple due to the fact that the nozzles were simply clogged. In order to eliminate this malfunction, they just need to be thoroughly cleaned.

The sound when the VAZ 2107 engine troit is difficult to confuse with something. The machine begins to emit a characteristic intermittent knock, which indicates that only three of the four cylinders are working. The reasons for this, as well as the consequences, can be very different.

The main symptoms of a malfunction

The number of working cylinders decreases, and a drop in power is immediately felt, the car no longer pulls as before. Vibration appears even at idle, and a characteristic shiver comes from the engine compartment. You may notice that the fuel consumption has increased and the smell of gasoline is clearly felt in the exhaust gases.

If measures are not taken in time, then a major overhaul of the engine may be required. And this is not a carburetor to change, it takes a lot of money and time. A mixture of gasoline and air is combusted in the cylinders. If this does not happen in one of the cylinders, then the fuel accumulates and gradually mixes with the oil, going into the crankcase. Because of this, the viscosity deteriorates significantly, and lubrication ceases to have the desired effect. As a result, the piston and rings wear out to a critical state. In addition, the walls of the cylinder are erased. The VAZ 2107 engine needs repair.

Reasons for cylinder failure

If a VAZ 2107 engine is troit, then there may be several reasons for this, and to find a malfunction, you need to perform several actions:

• find a faulty cylinder;
• check the candles;
• inspect wires, injector, nozzles, valves;
• check the air leakage into the carburetor;
• check the work for hot and cold.

It is quite simple to identify a failed cylinder. With the machine running, the high-voltage wires must be removed one at a time if a carburetor is installed. At this moment, no current will be supplied to the spark plug and the cylinder will stop working. The injector is simpler in that there is no need to risk disconnecting the wires, it will be enough to remove the chips responsible for controlling the fuel supply. If nothing changes, and the engine continues to run unchanged, the faulty cylinder has been found.

The next step is to test the candlestick. Having unscrewed it, it should be carefully examined. If carbon deposits are present on it, then because of this, the spark will not "break through". It is a mistake to think that a replacement or simple cleaning will solve the problem. Without finding and eliminating the cause, a new candle will acquire the same appearance in a short time.

Check for a spark. To do this, put a high voltage wire on it and bring it to the motor housing with the metal end. Next, someone needs to turn the starter several times. If everything is ok, then a spark should appear. If it is absent, then this may indicate:

• wire breakage or high resistance;
• failure of the ignition coil;
• malfunction of the electronic control unit;
• breakdown of the crankshaft position sensor;
• belt offset by several teeth.

In the event that the spark is in order, but the car still does not pull, and it is clearly audible that the motor is troit, the reasons may be as follows:

• compression is broken;
• defects or rings are worn out;
• problems with injectors;
• abnormal valve operation.

The reason for the inoperative cylinder may be an injector or broken injectors. This may be due to driving on low quality gasoline or using handicraft fuel system cleaners. Sometimes a breakdown is indicated by the fact that the injector has failed, but this is very rare.

Also, the VAZ 2107 engine is troit due to the fact that the nozzles are simply clogged and it is enough to clean them. An open circuit of the power supply or control to the injector is possible, sometimes a short circuit occurs. It is advisable to carry out a diagnosis. Even if it does not reveal any error, then this indicates that the reasons are in the mechanics.

It is not uncommon for a VAZ 2107 engine to run cold or hot. The first thing that comes to mind for a specialist is to adjust the valves. It is recommended to perform this procedure every 20,000 km.

The term "cold" means that there are large clearances at the valves, and with prolonged operation, even at idle, the metal heats up and expands, and everything returns to normal. "Hot" means the opposite process. Before heating, all elements are within normal limits, and after that, the valve is jammed.

If the VAZ 2107 engine is troit, and the car does not pull, then you need to immediately find the cause and eliminate it. Otherwise, the consequences can be extremely sad and quite costly.

Greetings to you friends on the do-it-yourself VAZ car repair site. The internal combustion engine is one of the most important and complex parts of a car.

If from time to time you do not carry out its maintenance, replacement of faulty elements and repairs, then over time a variety of problems may appear - a decrease in power, an increase in the "appetite" of the engine, the appearance of extraneous noise and vibration.

In this case, one of the most common problems is the "triplet" of the engine. As practice shows, such a problem can arise on any car, both domestic and foreign.

The main thing for a driver is to be able to diagnose it in a timely manner, find a malfunction and perform a quality repair.

The main signs why the engine is troit

If you know the main symptoms of a malfunction, then it will not be difficult to identify the fact of tripping. There are several of them:

1. Malfunctions of the engine, shaking at idle speed, as well as strong vibrations, which are transmitted to the passenger compartment, are manifested.

It is difficult to confuse such manifestations with something, so we can safely talk about the failure of one of the cylinders.

The only problem is that such symptoms appear too late, when one of the "culprits" is completely out of order.

2. The electrodes on one of the candles turn black, covered with carbon deposits or soot. Most motorists replace the "faulty" spark plug without thinking about the reasons. You can not do it this way.

Darkening of the spark plug can be a signal of more serious engine problems that require prompt resolution.

3. The exhaust sound changes. As a rule, in the case of a triple engine, the sounds that appear literally shake the car. An experienced car enthusiast will immediately notice that something is wrong with the car.

4. The "gluttony" of the car increases. There are many reasons for this phenomenon, so it is advisable to carry out a complete diagnosis of the power unit.

5. The dynamics of the machine is deteriorating. This is especially noticeable at the moment of acceleration, at low revs.

But again, such a problem may indicate a number of other malfunctions. Therefore, you need a comprehensive diagnosis.

In this case, fluctuations can be both very significant (from 900 to 1500 rpm), and insignificant.

7. There are unpleasant jerks in the process of gaining speed and during normal driving in any of the gears.

Causes and malfunctions of engine triplication

Let's say you really have a triple engine. It is impossible to be inactive in such a situation. On the one hand, trips on an excessively "gluttonous" and constantly twitching car will not bring pleasure, but on the other hand, there is a likelihood of failure of the remaining units (domino effect).

Therefore, you should clearly know why the motor is troit and what to do about it.

Let's highlight the main reasons why the engine is troit:

• Ignition.
• Vacuum amplifier.
• Spark plug.
• High voltage wires.
• Air filter.
• Piston rings.
• Valve adjustment and burnout.
• Malfunction of the distributor.

Such a problem can be diagnosed by skipping one of the bars, the appearance of the sounds of "clapping", "bouncing" of the motor.

Listen to the work of the power unit. If the engine troit at idle, and after the start of movement and acceleration, the problem disappears, then the reason is early ignition.

In this case, it is enough to make simple adjustments that will take you a minimum of time.

2. Damage to the system vacuum brake booster(deterioration of the tightness of the valve or diaphragm). Such a malfunction can lead to the appearance of air in the system.

As a result, the air-fuel mixture becomes "leaner" and does not ignite in the engine. One or two "passes" are enough for the candle to get wet and generally cease to perform its functions.

The appearance of such a problem manifests itself in all modes - the engine troit into hot, cold and idle.

3. Failure of the spark plug. As a rule, in almost half of the cases, this is the main reason for the appearance of triplet.

To eliminate the problem, it is advisable to inspect the candles from time to time, clean them and replace them (taking into account the terms prescribed in the vehicle operating instructions). In this case, it is advisable to change the entire set at once.

4. Breakdown high-voltage wires- a very rare occurrence, but it happens. What's happening? If there is damage to one of the wires, the spark will break through earlier and not reach its candle.

The easiest way to diagnose a problem is in the dark. Start the engine and carefully inspect the area from the distributor coil to the spark plugs.

The appearance of a bright spark in the gap between the coil and the motor indicates a breakdown in the insulation of a high-voltage wire or capacitor.

As a temporary measure, insulation of the damaged area is suitable (you can use ordinary electrical tape). In the future, it is better to replace the "culprit".

5. Dirty air filter. There are times when motorists change the engine oil but forget to install a new air filter.

As a result, the car starts to "choke". The air-fuel mixture is not enriched with the required volume of oxygen, and when fuel is supplied to the engine, the candles are simply “flooded” with gasoline.

It is not difficult to fix this problem - just install a new filter.

6. Deformation of piston rings is a very rare occurrence. To exclude this problem from the “agenda”, be sure to measure the compression in the engine cylinders.

7. Violation of the adjustment of the valves (their clearance) affects the operation of the entire unit. As a result, from time to time one of the cylinders does not receive its portion of the air-fuel mixture.

The malfunction manifests itself in all modes - the engine troit on cold, idle and even in motion. Another likely cause is rocker wear.

To fix the problem, it is necessary to remove the cylinder head and adjust the valves according to the recommendations of the operating instructions.

8. A malfunction of the distributor can also cause the appearance of the triplet of the power unit.

The weak point of this device is the bushings, shafts and bearings of the swivel plate, which tend to wear out.

To remedy the situation, it is necessary to repair or replace the distributor.

5. Burnout of a valve or piston is a serious problem that can only be eliminated by repairing the engine.

Attention! It is not so easy to determine the triple structure of an engine, since there are a lot of reasons, the article describes the main ones, but of course not everything, much depends on the type of engine (injector, carburetor).

The difficulty also lies in the fact that it is very difficult to diagnose the problem - it is necessary to disassemble the power unit and inspect the valves and pistons personally.

But keep in mind that it is advisable to carry out this work after the inspections (if they did not bring any result) and only if you have the appropriate experience.

Remember that the lifespan of the car and its stable operation depend only on your attentiveness.

You need to know if the engine troit is only a symptom that indicates the appearance of a problem in one of the engine mechanisms.

Your task is to find the problem and fix it. The faster you do this, the less negative consequences will be for the engine and the cheaper the repair will be. Good luck on the road and, of course, no breakdowns.