Due to certain reasons, exhaust gases of any car are capable of changing their shade and color. About why from the muffler goes unusual color and how to eliminate it, read further in the article.

Exhaust smoke cars why exhaust gases can change color

Most often, smoke appears along with other signs of faults that car owners first do not notice. However, the unusual smoke from the silencer is the first sign that in the near future a serious breakdown is possible, which must be excluded.

The fact is that incomplete oxidation and combustion of fuel is observed even in the most modern cars. Consequently, the outside comes out a huge amount of CH and CO. As a result, when changing the fuel can be observed a change in the consistency and the color of exhaust smoke. In addition, oil or the used coolant, which also give their definite chemical reactions, fall into the combustion chamber in some cases, and emit their definite chemical reactions.

Worn of the filter system is another common cause. No matter how carefully you did not belong to your car, under the influence of the time the filters are all worse than performing their functions. Therefore, when changing the color of the exhaust, perhaps the simplest solution to the problem will be replaced by filters.

Car exhaust gases, what color exhaust gases in a working car

If the vehicle is properly, then the exhaust is nothing else, as a compound of carbon dioxide and water. Without additional components and impurities. But, in the case of combustion of fuel, we are dealing with dilute nitrogen, and not pure oxygen. If the motor is well adjusted and correct, its exhaust gases are actually colorless, and the black thick smoke can appear only immediately after the engine starts.

White smoke from the muffler, why it is white, good is it or bad, diagnosis causes the appearance of white smoke

In a variety of cases, white smoke is the usual phenomenon in winter, when the car owner warms the car in the morning. And in fact, it is always ordinary couples, and not smoke. As a result of the temperature difference when cooled the exhaust pipe, condensate always appears in it, which then freeze again until the next warming of the vehicle. When you start the car, the exhaust pipe also begins to warm up, as a result of which the frozen condensate melts and translates into a gaseous state. Also, at the same time, dripping fluid from the pipe can be observed, which in this case is also not a serious problem. The temperature of the air outside the street is lower, the stronger smoke is noticeable. Yes, and from moisture, it also depends a lot. What she is more, the white couple is thick.

But if the exhaust is observed continuously even in warm summertime, it means that the liquid penetrated the cylinders. These are usually coolers - toosol, antifreeze or even ordinary water. There is a possibility that in this case you should replace the GBC gasket. Moisture does not completely evaporate and appears smoke with great density. It is characteristic that the density and color of the exhaust are capable of very different depending on the type of cooling agent. Cheap and poor-quality can be able to cause a mass of trouble.

To deal with the reasons for the appearance of white smoke, diagnostics should be diagnosed. As a rule, it arises as a result of problems in the cooling system. If there is a hint of its malfunction, it is recommended to conduct several checks. First of all, make sure that water evaporates from the muffler. For this, we do the following:

1. We warm up the motor to the usual operating temperature (the event can be carried out even after the trip).
2. We find a blank sheet of paper and apply to the pipe, partly blocking the hole.
3. Then we draw the conclusions: if water is in the silencer, it goes water, then it turns into steam and will not leave the oily fat traces. But if fat spots remain on the sheet, it means that there is a problem in the system.

If the sheet is clean, you should continue searching. Moisture can occur not because of the gasket, which, due to some factors, turned out to be damaged, and because of the cracks in the cylinder blocks. As a rule, they can be detected without any problems with a thorough visual inspection.

There is another fairly frequent reason for the occurrence of white smoke - the motor does not have time to warm. With a rare ride for small distances, the condensate accumulates more and more and outward it does not have time. As a result, the exhaust system can be so clogged with condensate that the car simply will not start. To avoid this, it is recommended to completely warm the vehicle at least once a day, and if possible, apply autotypers.

The problems you have found, accompanied by a white smoke from the exhaust pipe, do not just require the rapid elimination of their reasons - it is necessary to thoroughly check and eliminate defects in the cooling system, as they are caused by the overheating of the motor. There is a chance that a non-grind radiator, a thermostat is defective or a switching sensor and so on.

Conclusions: In winter, it is not necessary to focus on the occurrence of white smoke from the muffler. With the arrival of heat, the problem is solved by itself without your participation.

Black smoke, forerunners appearance of black smoke, reasons for black, diagnosis, solutions

The main reason for the appearance of black smoke - damage in the fuel feed system. This means that the fuel burns not completely. In the light of the day, this smoke is distinctly noticeable, soot particles are observed.

The appearance of black smoke, as a rule, is accompanied by an increase in the consumption of fuel, unstable operation of the motor, poor autorun, increased poisonousness of gases of exhaust and power loss.

There is a lot of reasons that fuel burns not to the end. One of them is the use of a mixture that is too rich in fuel, or incomplete, improper combustion. This is mainly due to the fact that the ignition and nutrition systems are faulty.

Before applying some measures, be sure to check the coil, candles and, naturally, the ignition system settings. It is possible that nozzles give more fuel than necessary. It may also be that the air filter is too clogged and the engine is simply not enough air.

To quickly diagnose the ignition system, it is necessary:

1. First of all, unscrew the candles and pay attention to the Nagar. If there are black plates on the candlelight, you can draw conclusions that the problem lies in the power system either in the fuel.
2. If such a Nagar is present not on all candles, then it is most likely the problem in the ignition system.
3. Replace the candles and compulsory check the wires that go to them.

If your carburetor motor installed on your car, and smoke appears only at idle, you must configure the screws of the amount of the mixture. If smoke appears permanently, it is necessary to fully clean the carburetor. In addition, the black smoke may form as a result of compression that sacing significantly.

Often the dark and caustic smoke from the muffler goes in cars that work on diesel fuel. Here the problem is usually based on the work of a high pressure pump. Bringing the normal operation of the motor can be an incorrect injection angle.

Blue smoke, reasons, diagnostics, ways to eliminate

The most common reason for the regular appearance of blue smoke is to enter the lubricant in the cylinders. At the same time, the smoke itself can have a lot of different tones - from a saturated bluish to an unlucky bluish shade. Blue smoke is instantly not dissipated in the air, and if you spend a test with a piece of paper, it will remain oily, dirty droplets that come out with exhaust gases. There are a number of main causes of smoke sinusiness:

1. Wear oil-sensitive caps, damage guide sleeves and valve rods. They significantly increase the amount of smoke when warming the motor.
2. The high consumption of lubricant is observed in engines with turbocharging. The reason, as a rule, is a faulty turbocharger, which is most likely to be replaced.
3. The ventilation system incorrectly works. Its purpose is to adjust the flow rate and separate the oil. It should be replaced or reconfigured.

If you notice the appearance of a blue smoke from the muffler, in mandatory concentrately follow the oil level, as well as the suitability and health of the elements of the piston group.

Elevated oil consumption is a clear sign of ventilation problems. There is no particular sense to repair it, since the cost of replacement is low. Buy it is much easier.

Tips Pros: Why you need to fill the car with high-quality gasoline on the verified refueling

Of course, do not forget about the quality of gasoline. The change in the shade of exhaust gases is very often observed after visiting a little-known refueling, where you used to buy fuel. Low-quality fuel itself burns much faster and entails additional problems. Alternatively, for diagnosing and eliminating the problem, try to drain gasoline and pour more expensive. If the problem disappears, it means it was in it.