What is the reason for the green water exhaust pipe of the car?

Updated on Car 2024-07-02
16 answers
  1. Anonymous users2024-02-12

    Check the coolant.

    Whether it is missing, and if it is, it means that the cylinder gasket is broken. If not, it's burned sufficiently. Everything works fine.

    What's the deal with a car exhaust pipe dripping?

    If there are no other abnormal symptoms in the engine, it is normal for the exhaust pipe to drip because gasoline produces water vapor and carbon dioxide after burning inside the engine.

    The exhaust gas of the car passes through a three-way catalytic converter.

    and the exhaust pipe after the temperature will drop dramatically, water vapor.

    It condenses into water droplets, and if it accumulates too much, it will drip out from behind the exhaust pipe. Because the outside temperature is low in winter, water vapor is more likely to condense into water droplets, so the dripping water from the exhaust pipe is more obvious in winter.

    The exhaust pipe of the car sometimes drains outward, especially in winter, and many people worry about whether there is something wrong with their car, in fact, this is a very normal physical phenomenon. First of all, the exhaust system temperature is low in the engine warm-up stage, the vapor water in the exhaust gas will condense, and a large amount of water will be adsorbed on the exhaust pipe wall with relatively low temperature. Secondly, after safe combustion, gasoline produces carbon dioxide and water vapor, which condenses to form liquid water, which is discharged through the exhaust pipe when a certain amount is reached.

    The exhaust pipe of the car generally has a small hole, which is used for drainage, and the rear of the tail of some exhaust pipes is designed to be relatively low, so that the water will be discharged during driving, which is why you can see the exhaust pipe of the car in front of you dripping water outward, and some exhaust pipes are lower in the middle, and the manufacturer will make a hole in the lowest place in the middle to let the water drain out.

  2. Anonymous users2024-02-11

    It's very likely that your car's antifreeze has accidentally slipped into the engine. Therefore, when the exhaust gas is discharged, it is discharged together with the exhaust gas in the exhaust pipe. You need to check the antifreeze to see if it is leaking, and if so, clean the engine and replace the antifreeze drain right away.

  3. Anonymous users2024-02-10

    Are you sure it's green water and not green reflections? If it is green water, it should not appear, if there is a certain amount of oil floating on the surface of the water and reflecting green light, it is because of organic oil, as for how it came from, you have to check further.

  4. Anonymous users2024-02-09

    The car exhaust pipe exhausts green water, and I personally think that this situation is likely to be caused by damage to the engine's gasket and coolant entering it, so it is recommended to check it from this part first.

  5. Anonymous users2024-02-08

    It may be that there is a crack in the glass tank block. Usually it is normal for the car to discharge colorless water, blue indicates that the engine oil is burned, white has water vapor, and black burns incompletely.

  6. Anonymous users2024-02-07

    The green water in the exhaust pipe of the car is mainly the water of some air conditioners, and this water is discharged through the exhaust pipe, so there should not be too much of a problem.

  7. Anonymous users2024-02-06

    It may be that the engine head gasket burned through, causing coolant to leak into the cylinder and vent during the exhaust process.

  8. Anonymous users2024-02-05

    Hello, normally it is blackened and green, what color is your antifreeze, is it also green, has the exhaust pipe been replaced, thank you.

  9. Anonymous users2024-02-04

    Hello! The causes of black water in car exhaust pipes are as follows.

    Reason: After the complete combustion of gasoline, water and carbon dioxide are generated, water is water vapor at high temperature, water vapor is colorless and transparent at high temperature, but when the temperature is lower than 100, water vapor will condense into water, there is carbon deposit on the exhaust pipe, and the water flows out with the exhaust to turn black.

    This is not an abnormal phenomenon, the main component of "black oil" is engine oil, because there is too much wear between the cylinder and the piston, the seal becomes poor, the oil enters the cylinder cavity from the bottom up, and then discharges with the exhaust gas, because the density of the oil is large, so there must be precipitation at the exhaust pipe.

    Extended Materials. The exhaust pipe is installed between the engine exhaust manifold and the muffler, so that the entire exhaust system is flexibly connected, so as to play the role of shock and noise reduction, easy installation and prolong the life of the exhaust sound reduction system.

    The main material of the exhaust pipe is stainless steel, and the ferrule and pipe can be made of stainless steel or aluminized steel. Mainly used for light vehicles, mini cars and buses, motorcycles, the exhaust pipe structure is a double-layer bellows outer compound steel wire mesh sleeve, the structure of the jacket ring at both ends of the straight edge section, in order to make the sound reduction effect better, the bellows can be equipped with a telescopic joint or a net sleeve.

    Serious air leakage from the exhaust pipe gasket or supercharger interface gasket can lead to insufficient air intake, black smoke from the exhaust pipe, or a drop in engine power.

  10. Anonymous users2024-02-03

    Hello, dear ask a user, I am your exclusive answerer, Didi, I have received your question, and the answer is being sorted out, please wait for a while.

    Hello Didi is very happy with your question Your answer is that after the complete combustion of gasoline, water and carbon dioxide are generated, water is water vapor at high temperature, and water vapor is colorless and transparent at high temperature, but when the temperature is lower than 100, the water vapor will condense into water, and there is carbon deposit on the exhaust pipe, and the water will flow out with the exhaust to turn black.

  11. Anonymous users2024-02-02

    The reasons for the black exhaust pipe of the car are: 1. The idle hot car is too long; 2. Poor air quality; 3. Inferior gasoline and engine oil are used; 4. Catalytic converter failure; 5. Automobile fuel is not fully combusted, resulting in carbon deposits; 6. Poor driving habits.

  12. Anonymous users2024-02-01

    That's because when the ambient temperature is relatively low, especially in winter, the exhaust pipe of the car will drip outward, which is actually a very normal phenomenon. It is because the gasoline is completely burned after the generation of water and carbon dioxide, water is water vapor at high temperature, water vapor is colorless and transparent at high temperature, but when the temperature is lower than 100, water vapor will condense into water, if the condensed water droplets are small and suspended in the air, water vapor will appear as white gas, when the ambient temperature is low, white smoke from the exhaust pipe is water vapor; If condensed water droplets accumulate, it becomes water. The water droplets discharged from the exhaust pipe are the result of condensation of the water vapor generated after the combustion of gasoline in the exhaust pipe and muffler, but when the ambient temperature is high, the water vapor has not yet condensed and has been discharged, and when the ambient temperature is low, the water vapor will condense into water droplets on the exhaust pipe wall, and flow out with the exhaust.

    This phenomenon is prevalent in cars with good engine work.

    Got it!?

  13. Anonymous users2024-01-31

    This is a normal phenomenon, and this is the case only when the engine is good.

    After the gasoline is fully combusted, carbon dioxide and water are formed, when the temperature is low, the water vapor generated in the exhaust pipe condenses into water droplets and flows to the outside with the exhaust pipe, on the contrary, when the temperature is high, it forms a vapor mist and discharges it to the outside of the car, don't worry, your car is in good condition!

  14. Anonymous users2024-01-30

    It is normal for white steam and water to come out in winter, and it is normal for water to come out of normal times, that is, the carbon monoxide and nitrogen oxides discharged by the engine should be converted into carbon dioxide and water after passing through the catalytic converter, and the water output also proves that the engine is running well.

    But if there is too much water, and the tank is short of water, it is likely that the water is worn out.

  15. Anonymous users2024-01-29

    Because you don't run at high speeds for a long time, the exhaust gas in the combustion of the engine contains water, which can't be discharged and accumulates in the exhaust pipe.

  16. Anonymous users2024-01-28

    Gasoline chemical reactions

    Because gasoline is a hydrocarbon organic compound, when gasoline is burned with oxygen in the air, it can produce sulfur dioxide, nitrogen oxides, carbon dioxide and water, so the water in the exhaust pipe of the car is likely to be produced by the combustion of gasoline and oxygen.

    When the outside temperature becomes relatively low, the water vapor in the exhaust gas will be cooled to form water, and the condensation will form water and then be discharged through the exhaust pipe. This proves that your car burns well enough to get the moisture out. This means that it is normal for water to come out of the exhaust pipe, and it proves that your car is healthy.

    There is also the question of exhaust pipe life

    Since the structure of the exhaust pipe is designed to reduce sound, it is the easiest to store, and part of the water cannot be discharged'。Therefore, the structural problem of the exhaust pipe is most likely to cause part of the water to not be discharged, so the service life of the exhaust pipe will be reduced (water corrosion, rust), and sometimes there will be a "sudden sound", at this time, the water in the exhaust pipe may not be discharged due to too much.

    Some car owners will make a "hole" under the exhaust pipe to make the water automatically discharged, but due to this problem, some models will now design a drainage hole under the factory when they leave the factory.

    Suggested Scenario:

    The punching method is advisable, which can avoid some moisture residue and can be automatically excluded. Or after driving for a period of time or thousands of kilometers (especially in urban areas, there are more vehicles), you can find a 45-degree slope to stop the car and pull the handbrake closer: bang the throttle back and forth to drain the water, then you will find that there will be a lot of water in your exhaust pipe, which can extend the life of the exhaust pipe and completely discharge part of the residual water.

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It's called three-way catalysis.

It is mainly used to purify exhaust gas. There is a sensor called oxygen sensing gas behind the catalysis, which can monitor the oxygen content of the exhaust gas so that the computer adjusts the amount of fuel injection and ignition advance angle according to it. Without that thing, the exhaust will not be up to standard, it will cost fuel, or the power will drop. >>>More