What is the cause of blue smoke coming out of a car exhaust pipe

Blue smoke mainly burns engine oil.

The movement of the mechanism in the cylinder is relatively vigorous, and it cannot be supported for long without oil lubrication. In fact, the mixing of gasoline and engine oil is a relatively common phenomenon, and many engines cannot do well in this regard, and if the amount is not large, it will not have any bad effects. The abnormal phenomenon is that the piston ring and the cylinder liner are seriously worn, the sealing is not good, and the oil that enters the combustion chamber is more, and the phenomenon of blue smoke will also occur.

There are many situations of blue smoke from the engine, and the causes of blue smoke are often different, and the following types should be clear to everyone.

1. If the back pressure of the oil return oil of the lubricating oil circuit of the supercharger is too high, check whether the supercharger is leaking oil, including the supercharger itself and the oil return pipeline of the supercharger. If the oil return line of the supercharger is blocked, resulting in poor oil lubrication and oil return, the oil will enter the intake pipe and enter the combustion chamber to burn and emit blue smoke, and the seal of the turbocharger turbine shaft will not be tightly sealed, which will also cause the oil to enter the intake pipe for combustion.

Since the turbocharger is a high-speed running component, sufficient and stable oil must be obtained during the working process to ensure moist and smooth heat dissipation to ensure the normal operation of the turbocharger assembly. However, when the turbocharger turbine shaft seal is not tightly sealed, it can cause oil to leak into the turbocharger airway.

2. The piston ring is poorly sealed, and the condition of the cylinder liner, piston and piston ring is checked. If the wear is severe, the gap is too large, causing the oil to run up to the combustion chamber for combustion. At the same time, poor piston ring sealing will lead to engine blow-by, resulting in an increase in engine crankcase exhaust gases.

The piston rings lose their function, and a large amount of oil escapes to the combustion chamber for combustion, resulting in the emission of blue smoke.

3. The viscosity of the engine oil is not selected correctly, which is manifested as no blue smoke when starting in the morning, after the hot car, there will be a small amount of blue smoke discharged, there is no blue smoke before, after changing another oil, the blue smoke is generated, and there is a speed acceleration function when accelerating, but the oil consumption is too fast, and the engine noise increases.

4. Long-term incorrect driving mode, long-term overload operation, etc., resulting in premature aging and wear of the engine.

5. The valve oil seal is aged, damaged or damaged, and the gap between the valve and the guide is too large.

Blue smoke from the exhaust pipe of the car may be a fault in the engine, such as burning engine oil, etc., which needs to be repaired in time. As long as there is blue smoke, a large reason is that there is a problem inside the engine, among which burning engine oil is more common; It is possible to inspect the parts related to the burning of engine oil.

When overhauling the car, you can overhaul the valve seals, piston rings, cylinder walls, etc., and replace them in time when problems are found, so as to avoid more serious problems such as engine cylinders.

The slight blue smoke from the car is caused by the cold start of the car, which is not a big problem, and the owner does not need to worry too much. If there is a serious blue smoke from the car, it may be that there is a problem with the tightness of the car parts. The reason for the blue smoke from the exhaust pipe of the car is that the use of substandard engine oil, or the engine oil has not been replaced for a long time, the reason is that the engine oil is too thin and the combustion is not sufficient.

The solution is to replace the qualified oil. Caused by the start of the large throttle of the cold car, the quality of the gas mixture involved in the combustion is not good, or it is caused by the aging and damage of the filter and the failure to replace it. The duct and valve wear out during operation, making the gap between the two too large, and during the air intake, excess oil in the rocker chamber is drawn into the combustion chamber for combustion.

The piston ring is stuck in the ring groove due to carbon deposits, which makes it lose its elasticity and cannot work normally. The solution is to replace the piston rings if necessary, or remove the piston rings to remove the carbon deposits inside.

The oil pan of the oil tank has too much oil, but the crankshaft is rotating at high speed, causing the oil to splash into the combustion chamber and into combustion. The solution is to use an oil scale to check the oil level and remove the excess oil. Serious wear of the cylinder liner and piston assembly leads to excessive clearance, and a large amount of oil will be incorporated into the combustion chamber from the gap during the operation of the engine.

The solution is to replace the damaged parts.

Blue smoke is usually caused by the oil being strung into the combustion chamber and burned. But if it's just blue smoke when it starts, that's normal.

1. There are two reasons for engine oil burning:

1.Positive wear and tear is a normal phenomenon after a certain number of kilometers of driving. The general vehicle is about 200,000 kilometers, and different vehicles, different people, and different regions have a great impact on the service life of the engine.

I won't say much about the normal wear and tear of vehicles that exceed a certain service life and kilometers, and the overhaul should be overhauled.

2.Abnormal wear and tear: The cause of abnormal wear and tear is early wear caused by product quality and improper use. If your car burns oil during the warranty period, please contact the manufacturer's four S shop in time to negotiate repair or replacement of the engine.

The reasons for the early wear of the engine are: the use of unqualified oil, the overdue non-replacement of the oil and the oil cleaner, the cold car throttle start, the long-term lack of oil under the operation, the long-term operation at high temperature, the long-term overload and high speed operation, the long-term operation in the state of poor air quality and the expiration of the air filter, the oil pump oil pump force is insufficient, the oil pressure is too low, the oil channel is blocked, etc., will make your engine reduce the service life and cause early wear.

Knowing the reason, friends should avoid the above mistakes in daily driving maintenance, take good care of the vehicle, and prolong the service life of the engine.

Second, which parts wear and age will cause the engine to burn oil.

1.The wear of the cylinder liner and piston will increase the gap between the cylinder wall and cause part of the oil to enter the combustion chamber for combustion.

2.The wear of the piston ring, the weakening or breaking of the elasticity of the piston ring, and the loose sealing caused by the piston ring going to the right mouth cause part of the oil to flow into the combustion chamber for combustion.

3.The aging and damage of the valve oil seal will also allow some oil to enter the combustion chamber for combustion, especially the aging and damage of the intake valve oil seal is more likely to allow the oil to enter the combustion chamber for combustion.

4.The engine exhaust pipe is blocked, resulting in excessive pressure in the oil chamber, which causes part of the oil to flow into the combustion chamber for combustion.

5.The hedging of the cylinder gasket oil duct and the cylinder will also cause some of the oil to escape into the combustion chamber for combustion.

Blue smoke is because the engine burns lubricating oil when it is working, if it only comes out for a while when it starts, it is not too big, if it has been emitting after starting, it is necessary to check the engine, find out where the oil enters the cylinder, and then solve it.

It may be that the valve stem is worn excessively or the valve oil seal fails, and if there is blue smoke in the oil port, it can be judged that the sealing effect of the piston connecting rod group is not good. Yiche netizens will answer for you.

What's going on with white smoke, black smoke and blue smoke coming out of the exhaust pipe.

The blue smoke from the exhaust pipe is mostly caused by the internal failure of the engine, which causes the oil to flow into the combustion chamber for combustion, which is commonly referred to as "burning engine oil". In this case, it is generally either scratched on the inner wall of the cylinder, poor piston sealing, or serious wear at the valve, resulting in gaps, so that the oil originally responsible for lubrication enters the combustion chamber through these gaps to participate in combustion, and the oil that cannot be burned will form blue smoke when discharged out of the car.

Once the vehicle emits blue smoke, the explosive power of the vehicle will decrease, and the acceleration will be weak, the noise will become louder, and the burnt smell caused by the combustion of organic oil will also occur. Some older cars, the engine wear is more serious, there will be more oil leakage, and carbon deposits will be generated inside the engine for a long time, so it is recommended that you find it early and repair it early.

In fact, the exhaust pipe emits white smoke, blue smoke or black smoke because of the engine, of course, it is not excluded that these situations are caused by improper operation.

As long as we see that the exhaust gas from the exhaust pipe of the car has a color that we can see with the naked eye, it means that the car is faulty in some way. Now let's analyze the possible causes of white, blue, and black smoke from cars.

What is the reason for the blue smoke from the exhaust pipe of the car, the blue smoke from the exhaust pipe, in fact, the most popular name is the phenomenon of "burning engine oil" in the car, so why does the car have this situation, let's take a look at it together. When there is a small number of and short-term symptoms of blue smoke in the car, it may be caused by the cold start of the car, so the problem of blue smoke in the car is not big, don't worry. But when there is more serious blue smoke from the car, it may be that there is a big problem with the sealing of the car parts, and then it needs to be dealt with in time.

Symptoms of blue smoke from automobiles: When the symptoms of blue smoke appear in automobiles, it is accompanied by the obvious phenomenon of explosive force of automobiles, such as weak acceleration and louder noise, and usually accompanied by the burning smell of engine oil, and the consumption of engine oil increases. Under normal circumstances, after 7500 kilometers of maintenance, the consumption of engine oil is within the normal range, if these abnormalities are found, then there is a more serious phenomenon of blue smoke, which needs to be dealt with in time, otherwise it is easy to cause irreversible damage to the engine.

What is the reason for the blue smoke from the exhaust pipe of the car 1. The use of unqualified engine oil, or the oil has not been replaced for a long time, the reason is that the engine oil is too thin and the combustion is not sufficient. Solution: Change the qualified engine oil.

2. The quality of the mixed gas involved in combustion is not good, or it is caused by the aging and damage of the filter and the failure to replace it. 3. Caused by the start of the big throttle of the cold car.

The reasons for the blue smoke emitted from the exhaust pipe of the car are: oil leakage into the exhaust pipe, excessive gap between the piston and the cylinder, and piston ringing. When there is blue smoke in the exhaust pipe, the first thing to do is to eliminate whether there is organic oil in the exhaust pipe, if the valve oil seal leaks, the oil will leak to the exhaust branch, causing high temperature will produce blue smoke.

The blue smoke from the exhaust pipe is the phenomenon of "burning engine oil" in the car, burning engine oil refers to the excessive amount of engine oil in the combustion chamber to participate in the combustion, and the consequences of burning engine oil can increase the carbon deposit in the cylinder, making the combustion inadequate, and the power decreases, which can cause exposure combustion. The result of severe exposure and combustion is that the engine may be completely scrapped, and there is also unstable idling, weak acceleration, and insufficient engine lubrication, resulting in damage or scrapping of the engine that is difficult to repair.

The blue smoke from the engine is basically burning the engine oil, and there are many reasons for this, roughly the following situations:

1. If the back pressure of the oil return oil circuit of the supercharger is too high, check whether the supercharger is leaking and whether the oil return pipe is blocked.

2. The exhaust gas valve is damaged, and the oil and gas cannot be separated, and it re-enters the combustion chamber for combustion.

3. The valve oil seal is aged, damaged or damaged, and the gap between the valve and the guide is too large.

Fourth, the oil exceeds the upper limit, so that the crankshaft throws the oil into the combustion chamber to participate in the combustion during high-speed operation.

5. The engine is severely worn, resulting in too large a gap between the piston and the cylinder wall, and the oil enters the combustion chamber through the gap.

Sixth, the piston ring is stuck, and the cylinder wall oil participates in the combustion. This is the reason why most cars burn engine oil.

The solution to burning engine oil.

Dismantling the engine for overhaul will destroy the airtightness and precision of the engine. And there is a possibility that the engine oil will burn again after tens of thousands of kilometers, so overhauling the engine is not sustainable.

With the progress of science and technology, the current dismantle-free repair technology has been very mature and has gradually been recognized and accepted by the majority of car owners. It not only saves the cost of car maintenance, but also protects the original car accessories. With exclusive patented technology, the company has universal non-destructive repair technology, which repairs and releases piston ring stuck oil while driving, and the effect is remarkable.

Summary. The blue smoke from the exhaust pipe of the car is caused by the typical engine oil burning, but the specific cause of the oil burning still needs to be determined after testing, which may be the aging of the valve oil seal, the piston ring, or the exhaust valve.

What's the deal with blue smoke coming out of a car's exhaust pipe?

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The blue smoke from the exhaust pipe of the car is caused by the typical engine oil burning, but the specific cause of the oil burning still needs to be determined after testing, which may be the aging of the valve oil seal, the piston ring, or the exhaust valve.

What's going on with the blue smoke coming out of the exhaust pipe of a new car, can you change to a new car after running less than 2000 kilometers.

It's hard to say this, but you still have to make an appraisal first, and if you really burn the engine oil, you can apply for a replacement car.

Go there and do the identification.

Automatic transmission

There is a click, click, and the whole car is shaking.

You can call 12315 to explain the situation first, and then it will generally recommend you a local appraisal agency.

In this case of an automatic car, it is possible that there is a problem with the transmission shift logic, and you can upgrade the transmission computer first.