The starter turns, but the car does not start, many motorists begin to look for a problem in the battery. But sometimes that's not the point. In winter or autumn, when the air is humid or cold, starting the car in the morning can be a real problem. It turns out that quite often it floods the candles when starting the engine. Let's see why this happens. And how you can fight these.

Why does it flood candles

Before proceeding with active actions, you need to understand at least a little what happens to the candles when the key is turned in. When the starter starts to move the valves of the engine cylinders, that is, it tries to start the engine, gasoline is mixed with air in the cylinder chamber, after which it ignites from a spark with candles.

Therefore, we can conclude that without a spark, a microexplosion will not occur in the combustion chamber of the engine, and it will not start. However, at subzero temperatures (-10 and below) or due to insufficiently high temperature of the mixture of gasoline and air, chemical reactions do not occur, and the mixture does not ignite, as a result of which the candles are filled with fuel and stop working. Now let's figure out what to do if the candles are flooded, when transport is needed right now and there is no time to wait for the arrival of the master.

We fix the problem ourselves

To fix the problem with your own hands, you must at least know where the spark plugs are. There are several solutions. The first is the installation of a new kit, of course, if there is one. It is advisable not to throw out the old ones, but simply put them in the garage. In order to remove the candles, you will need a special one that almost every motorist has. However, the method is not suitable for everyone, due to the lack of a new kit.

Now let's look at the way in which the use of old candles is provided. The fact is that they are not spoiled, but simply filled with gasoline, but drying alone is also not enough. Therefore, we need an oven in which we can heat the candle to a high temperature and change the color to red. Such an event is carried out in order to get rid of fuel residues and the actual soot formed. But here you need to remember that, first, the ceramic of the candle deteriorates, and secondly, polishing will be required before installation.

What to do if the candles are flooded, or Another solution

This method is used by almost all motorists, due to the high efficiency and simplicity of the method. To do this, we do not need to leave the car, because we will carry out the so-called candle blowing. We fully squeeze out the accelerometer (gas) part, while turning the starter, at this time a large amount of air will flow to the cylinders and candles, which is drying. With all this, the throttle valve must be fully open.

It should be noted that this method is applicable to both injection and carburetor engines. The only thing to be wary of is that your battery will not withstand such loads - it will sit down even before the candles dry. Again, due to the fact that the throttle valve is open to maximum, gasoline does not flow to the combustion chambers, which is what we need. Now you know what to do if the candles are flooded, but you need to consider the sequence of actions on injection vehicles as a separate item.

Injector spark plug problem

You probably know that new cars don't have this problem. This is due to sufficient compression. Of course, the quality of the fuel also plays a role: unfortunately, it is not first-class, it is often diluted, which interferes with the normal ignition of the mixture in the cylinders. Also contaminated injection nozzles prevent normal

In principle, the situation is quickly resolved. To do this, remove the candles, dry them, set them back, check the gaps and start the engine. Since injection candles practically do not differ from carburetor ones, the process of cleaning them is exactly the same. They can be unscrewed and then cleaned with a metal brush, no heating is required in this case. But sometimes the carbon deposits are so strong that you can't do without it. Typically, a fully charged battery and a fully operational starter motor will allow the engine to start without too much trouble.

How to prevent candles from flooding

As noted above, on new cars the question does not arise: what to do if the spark plugs are flooded, since this does not happen. But you can get rid of this on any car, you just need to comply with a number of important requirements. First, you need to use a special engine oil that does not thicken at low temperatures, this allows you to start the engine without much effort and stress on the battery and starter.

Secondly, high-quality fuel will not allow you to flood your candle. What if good gasoline is hard to find? This is another question. At the very least, you shouldn't look for a gas station with minimal prices, as you just run the risk of running into diluted fuel. The injection nozzles must always be adjusted and cleaned, this will have a positive effect on the start-up time.

Let's sum up

In conclusion, I would like to say that the car must be prepared for operation in the cold season. To do this, you need to switch the filter from "summer" mode to winter mode. It is also recommended to fully charge the battery to make starting easier. As for the candles themselves, it is advisable to always have a spare set with you, because it is not known where they can be poured and what to do then.

The same applies to engine oil: it must be selected according to the manufacturer's recommendations. And do not pour mineral oils instead of synthetics. I would also like to note that if it was not successful the first time, then it is advisable to wait 20-25 seconds before starting the second. It must be remembered that re-enrichment of the mixture of air and gasoline can happen at any time, even when everything is in order. But after reading this article, you already know what to do if the candles are flooded, so you will always be ready for such a problem and its elimination.

If one fine morning you find that your car has difficulty starting, or even the engine refuses to start at all, then most likely your candles are flooded. In this article, we will try to answer the question why does it flood candles on VAZ cars, and what to do about it? The solution to this problem is quite simple and lends itself to any car enthusiast.

Causes of faulty spark plugs

Fills candles, most often during cold weather. Especially noticeable in late autumn. Sometimes it is possible to start the engine, but it runs unstable and for a short period of time. When you try to accelerate it (press the gas pedal), it stalls for a second, and a sharp pop is emitted in the exhaust pipe. This phenomenon is dangerous, as it can knock down the ignition timing.

The first thing the driver does in this case is to check the color of the spark plugs. The threads and electrodes are in most cases covered with black carbon and are too wet - all this means that the spark plugs are flooded.

In this case, there is no dependence on what type of engine you have installed (injection or carburetor), the problem manifests itself in the same way in both engines. To determine the source of the trouble, you need to understand how the engine starts.

The process of starting the engine is as follows: the starter spins the flywheel of the crankshaft and sets in motion all the important organs of the engine. These include the camshaft, valves, and at the same time, sparks are generated at the ends of the spark plugs. During this time, the gasoline pump pumps a mixture of gasoline and air, which enters the combustion chamber. At the moment fuel is supplied to the chamber, a spark is formed on the spark plug electrodes (at the correct ignition timing), which ignites the mixture and creates a small explosion, which, in turn, moves the piston inside the cylinder.

It becomes clear that if the spark does not appear, then the mixture simply fills the candle, which is no longer able to spark. Ultimately, it becomes covered with a layer of carbon, and the remains of unburned gasoline explode in the exhaust pipe, creating an unpleasant sound that many motorists are so afraid of. This phenomenon is due to a malfunctioning spark plug, therefore, before looking for the problem elsewhere, you should check for a spark. To do this, you must use a special gun.

If the candles are working, and the problem of sparking is not solved, then either a module is needed.

Another problem is the composition of the mixture. If much more gasoline enters the combustion chamber than air, then oxidation will not occur. Ultimately, the spark plug is filled with gasoline and is no longer able to ignite the mixture. In this case, you will need to adjust the carburetor. The fuel to oxygen ratio must be within the same range. To do this, turn off or turn the bolts for adjusting the quality and quantity of the mixture.

In injection engines, things are much more complicated. The first problem is. With prolonged operation, their sealing material begins to deform and gasoline, accordingly, enters the combustion chamber even when the engine is stopped. Ultimately, the spark plug is poured and starting the engine becomes quite problematic. The nozzles are subject to elementary replacement.

Video - VAZ injector fills candles

The second problem includes a weak ignition pulse, which is not enough to create the required ignition spark and poor compression in the cylinders. However, such difficulties can arise when operating a carburetor motor. In this case, the engine undergoes expensive repairs.

Incorrect adjustment of the amount of air and gasoline can also affect the injection engine. Incorrect operation of the controller, especially in cold weather, leads to the fact that the software does not perform well the computing function and the injector supplies gasoline and air in completely incompatible quantities. As a result, the candles are filled in the same way and lose the ability to further ignite the mixture.

What if the candles are flooded?

If the candles are flooded, and starting the engine is necessary as soon as possible, then you can forget about all of the above reasons and start the engine using several methods.

1. This method is prescribed by many operating instructions. For this, the spark plugs are unscrewed with a suitable wrench and dried. For drying, you can use a regular gas stove. After the candles become dry, they are wiped with a dry cloth, thereby eliminating new carbon deposits and screwed into place.
2. The second option has also come down to us from old carburetor cars. The essence of this method is to dry the candles without dismantling them. The method works the same on both injection engines and carburetor engines. The accelerator pedal is fully depressed to the stop, and the engine spins up with the starter for 10 seconds. Thus, the gas supply is shut off, and the engine cylinders begin to be blown with one air. During this short time, the candles have time to dry quite well. In the process of blowing it is necessary to release the gas pedal. After this action, the motor can usually be started without problems.
   
3. If all else fails, check for a spark. To do this, one of the armored wires is pulled out and leans against the cylinder head by 4-5 millimeters. Ask an assistant to turn on the car starter for a short time. If a blue spark jumps between the wire and, then the candle is serviceable. However, there are spark plugs that may not work in some particular vehicle type. Try installing new spark plugs. In most cases, this method almost always works. If there is no spark, then the malfunction lies either in the armored wires, or in the Hall sensor, or in the switch itself and the ignition coil.
4. If the first start of the engine is unsuccessful, then you need to wait for a certain pause. Usually, it is 5-10 minutes. This is done in order to avoid candle flooding. As for carbureted cars, experienced drivers recommend making the first start without closing the throttle. To do this, the car is started without suction and vigorously press the gas pedal to enable it to warm up the combustion chamber. After that, the damper closes, and it is not recommended to touch the gas pedal.

These methods allow you to start the engine only when it is urgently needed. If your vases are flooded with candles quite often, then it is necessary to diagnose the fuel supply system, and, if possible, repair or adjust. Do not tighten under any circumstances, as if there is a non-combustible residue, the oil scraper rings will fail.

That's all. Perhaps, here is listed the whole complex of measures that will help you revive and start the engine in cold weather, even with flooded spark plugs. This event is carried out independently, so any driver should know about it.

Why does the VAZ 2109 car fill the candles? Since you are reading this article, you know perfectly well that if the candles of a VAZ 2109 car are flooded, the engine will not start. the engine because a spark does not occur on the spark plug filled with gasoline.
Reasons for the bay of candles VAZ 2109:
1) The needle of the carburetor float valve is stuck.
2) The level of gasoline in the float chamber is too high.
3) Warming up the engine with the air damper closed and then trying to start
stalled engine again with a closed air damper (suction).
4) The valve timing is violated (incorrectly set)

1) The carburetor float valve needle adjusts the gasoline level in the float chamber. The needle can stick in different positions: if it sticks in the closed state, then you will not start the VAZ 2109, since gasoline will not enter the float chamber. If the needle sticks in a fully open state, then the carburetor will begin to pour gasoline into the manifold and cylinders of the VAZ 2109. The mixture thus turns out to be over-rich and, when the suction is completely closed, the candles can fill completely.
What to do if the candles are flooded due to a faulty float valve needle? The answer is simple - you need to replace the needle and correctly set the level of gasoline in the float chamber of the VAZ 2109 carburetor.
2) If the petrol level in the float chamber is too high, the needle works properly, but the float mechanism is set so that the petrol level is too high. The consequences of this are again unpleasant: flooding of candles and too high gasoline consumption.
Remedy: set the correct level of gasoline in the carburetor float chamber without changing the needle.
3) Some comrades warm up the VAZ 2109 carburetor engine as follows:
they start the car with a closed suction, leave it running to warm up, and go home to drink tea. When they drank tea, they came, and the car stalled. They try to start it, but it won't start. It does not start because the candles are flooded with gasoline. The mistake of those who like to drink tea when the VAZ 2109 carburetor engine warms up is as follows: as the engine warms up, it is necessary to slightly open the throttle valve. As the engine warms up, the combustion conditions of the combustible mixture in the car's cylinders change, if initially the spark is weak and the cylinder is cold, then as the engine warms up, the spark becomes stronger, the cylinder heats up and the mixture becomes over-rich.
As a result, the engine stalls, as the mixture is overburdened. The owner who has drunk tea comes and sees that the engine has stalled and starts trying to start it with the air damper closed and fills in the VAZ 2109 candles. Then you have to unscrew the candles, dry them and start the VAZ 2109 again. How to dry candles VAZ 2109 will be described below.
4) If the timing belt has slipped and the valve timing is violated, the engine will not start, or it will start and work incorrectly. That is, the spark will not be supplied at the end of the compression stroke, but later. In this case, the combustible mixture will not completely burn. At the same time, the VAZ 2109 engine does not develop full power, fuel consumption increases.
What to do if you all the same filled the candles VAZ 2109. You ask: "How do you know that the candles are filled?" Take the candle key and unscrew the first candle.

We examine it, if it is all black, wet and smells of gasoline, then it is flooded.

We unscrew all the candles, mark them without fail, so as not to confuse them later.

We go to the gas stove and light the burner, take the candle with pliers and ignite it on gas.

After it cools down, we clean its surface from carbon deposits with sandpaper. If it so happens that there is nowhere to dry the candles nearby, there is not even a lighter, then the old-fashioned way remains for such a case. To dry the candles with it, you don't even need to unscrew them from the engine. We act strictly according to the instructions:
a) Squeeze the gas pedal all the way. That is, we fully open the throttle valve of the VAZ 2109 carburetor.
b) Check that the air damper (suction) is fully open.
c) Without releasing the gas pedal, turn on the ignition and crank the engine with the starter for 5-6 seconds.
d) When you rotate the starter, due to the fully pressed gas pedal and the open air damper (suction), not a combustible mixture, but only AIR, enters the cylinders of the VAZ 2109 engine.
Thus, we ventilate the candle with fresh air, partially drying it.
e) After drying the candles, remove our foot from the gas pedal, close the suction a little and try to start the car. The VAZ 2109 engine should start. You can repeat this procedure several times. She usually helps.

When the air temperature drops below 15 degrees, motorists often do not start the engine in the morning. There are many reasons why this happens. One of these is the ingress of fuel onto the spark plugs. Moreover, this can happen with both a carburetor and an injection fuel system.To solve this problem, you need to figure out why it floods the candles on the injector and what needs to be done to avoid it. I will talk about this in this article.

Let's first deal with the reasons why it floods the candles on the injector. To do this, consider the operation of a car starter. Thanks to the operation of its pistons and valves, a mixture of gasoline and air is fed into the combustion chamber, which is ignited by the spark generated by the spark plugs. After ignition, the starter is switched off. The ignition starts the engine cylinders. A good starter, a powerful battery and a favorable ambient temperature are required for a successful engine start.

At low temperatures, gasoline does not mix well with air. It is known that the frosty air contains more oxygen. Increasing the oxygen content requires more gasoline. The vehicle's electronic control unit signals the fuel injectors to increase fuel delivery. Thanks to the starter, compression is created in the cylinders and at the same time a spark is formed to ignite the fuel mixture. But since the compression does not meet the standards, and the spark is weak, the incoming gasoline will fill the candles, preventing the mixture from igniting. This is the reason why it floods candles in frost.

The following factors influence spark formation:

• Gasoline quality. It should not contain a lot of impurities and dirt, as this affects the operation of the injectors.
• Engine wear. If the engine pistons are worn out, they do not create the necessary pressure and the injector can fill the fuel.
• The quality of the candles.
• The quality of the injector and carburetor.
• Battery power: you should monitor its charging.

If the compression is perfect, the engine will start even with minimal impulse and the fuel fluid will never fill the injector. But only a new car can boast of such compression. If a car, for example, such as a VAZ, is more than three years old, gasoline fills the candles on the injector more often.

Solution of the problem

Now I will tell you how to solve the problem when candles are flooded in the frost. The instructions for servicing a VAZ car describe the procedure for pouring candles on a cold one. Recommended:

• pull out the spark plugs;
• turn the starter without them for 10-15 minutes;
• dry the twisted elements;
• put in the same place.

What to do to prevent candles from flooding

We have considered the reasons why it floods the candles on the injector. Now we need to figure out what to do in order to forget that gasoline floods candles in frost. For this, a number of preventive measures should be taken before frosts begin.

First of all, you need to monitor the battery charge level. In winter, it is better to equip the car with more powerful batteries. To prevent fuel from filling the injector, the battery must be as charged as possible. Therefore, at night it, if necessary, must be put on recharge.

With the onset of cold weather, special attention should be paid to the quality of gasoline and oil. You should not save on this and it is better to purchase only a high-quality product that meets the season.

Naturally, you need to monitor the health of the spark plugs.
Clean them regularly and replace them in time if they are defective. The piston group also requires attention. It is responsible for creating compression, so when it wears out, the necessary pressure will not be reached to ignite the air-gasoline mixture and the fuel fills the candles on the injector.

If it is cold outside, then when starting the engine it is recommended to first load the battery. Then turn it off for a few minutes. Crank starter and start engine. If the launch has failed, then you need to wait about 10-15 minutes, so as not to fill the injector, and repeat the launch. It is necessary to check the serviceability of the car before the onset of cold weather. If all the components work properly, then there will be no problems with starting the motor.

Summing up, the following conditions can be distinguished for optimal operation of the injector:

• the starter must be in working order;
• the battery is fully charged;
• the lubricating fluid must be suitable for the season;
• all high voltage wires and spark plugs must be in good condition;
• nozzles must be adjusted and kept clean;
• use only high quality fuel.

Experienced motorists recommend that for self-cleaning of the engine, go to the track every month and drive the car at a speed of 120 km / h.
Self-cleaning of the engine occurs due to strong pressure. You can clean the engine by running it in the morning at five thousandth rpm for 10 minutes. The effect is similar to a track run.

Monitor the condition of your car, then avoid unpleasant situations and save your nerves.

Video “Unexpectedly lit candles. What to do in this case? "

After watching the recording, you will learn how to easily and quickly replace flooded candles with clean ones.

Sometimes a removed spark plug may be wet. This can be caused by gasoline, oil or coolant (antifreeze). Each of these liquids has its own determination methods.

Gasoline can be easily identified by its high volatility. By unscrewing the candle, the gasoline dries quickly. Most often, filling with gasoline occurs when starting a cold engine. It can also happen due to incorrect ignition adjustment.

Oil on the spark plug electrodes can appear due to significant wear on the valve stem seals. Less often, the cause may be wear of the cylinder-piston group of the engine or breakage of oil scraper rings on the piston. Any of these faults require immediate repair.

The amount of oil on the spark plugs can indicate how serious the problem is. When diagnosing, it is best to use a set of new spark plugs recommended by the car manufacturer, as oil droplets are clearly visible on a clean insulator. The first stage is the appearance of small dark specks from the burnt oil. This will not affect the performance of the spark plug in any way, but it will indicate that there are still problems with the engine. The manifestation of the next stage of oil entering the combustion chamber will be wetting the lower thread of the spark plug. This condition of the plug will cause pops in the muffler at idle speed. They disappear with increasing engine speed.

The last stage is full wetting of the candle from below. In this situation, the spark does not form at all. Consequently, a cylinder with such a plug does not work. You can find out about this by regularly banging the muffler, which does not stop with increasing speed. The engine starts to triple.

If oil enters the combustion chamber with 100% serviceable fuel supply and ignition systems, then its combustion occurs at the spark plug electrodes. As a result, the oil does not have time to wet the candle. This is not to say that this is good, but it is not too bad either. In this case, droplets of combustible oil turn into ash. It accumulates on the electrodes, increasing their thickness. When the engine is running, the ash heats up well. This contributes to the further combustion of the incoming oil. It is easy to clean, but it is best to do this at the same time as replacing the valve seals. If you remove the ash from the candle, the oil may stop burning. Because of this, the spark may stop skipping, the candle will flood, and the cylinder will stop working.

Sometimes "craftsmen" use the following methods of dealing with candle flooding: install candles with a shorter skirt or with a higher glow number, increase the spark voltage by putting on high-voltage tips, leaving a small gap. All these methods are short-lived, ineffective, and are dangerous for the condition of the car.

The reasons for the ingress of coolant may be the following: poorly pressed cylinder head, a crack in it or in the liner body, a leaky carburetor heating system. As for the latter reason, it is typical only for Japanese cars.

In practice, it is difficult to determine whether antifreeze enters the combustion chamber, since when the engine warms up, some openings can be closed as a result of metal expansion. Diagnostics must be carried out on a cold engine. This requires starting the car for about 10 seconds. During this time, the candles will not have time to heat up and the cracks will not disappear. On a twisted plug, the coolant looks like dew droplets.

When buying new spark plugs, you should be wary of fakes, as they can damage the entire engine. They can be identified by a curve or uneven inscription, poor-quality processing of the hexagon of the candle, poorly executed packaging.