What s going on with blue smoke coming out of a car engine exhaust pipe

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.

In the habitual thinking of car enthusiasts, they always think that the piston ring stuck engine oil should be overhauled, so that it will not only bear high maintenance costs, but also bear the unpredictable risks and depreciation losses brought about by the overhaul. 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.

Now the no-dismantling technology has been very mature and gradually accepted by the majority of car owners. In particular, the non-destructive repair products containing PNF patented technology have completely gotten rid of the technical shackles of burning engine oil and having to go to the auto repair shop for overhaul, without removing a screw, repairing and releasing the piston ring stuck engine oil while driving, with remarkable results.

Causes of blue smoke from exhaust pipes: Blue smoke is mostly caused by internal faults in the engine, which causes oil to flow into the combustion chamber for combustion. Common scenarios are:

Scratches on the cylinder bore, poor piston sealing, or severe wear on the valves lead to increased clearance. The engine oil enters the combustion chamber through these gaps to participate in the combustion, and when the oil that cannot be burned is discharged from the vehicle, a blue smoke is generated.

Solution: 1For older vehicles, it is necessary to check the tightness of cylinder blocks, pistons and other components frequently, and repair them at the maintenance station in time when blue smoke is found to be discharged, so as to prevent greater losses.

2.Add an appropriate amount of engine oil, too much or too little is not advisable. Check the oil usage regularly, and once you find that the oil consumption is abnormal, immediately go to a professional maintenance station for inspection.

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 back pressure of the return oil of the supercharger lubricating oil circuit is too highCheck whether the supercharger is leaking oil, including the supercharger itself, and the supercharger oil return line. 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.

Safety hazard: If the wear is severe, the gap is too large, causing the oil to flow 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.

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.

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.

Most of the time, what we see is black smoke from the rear of the car and white smoke in winter, while blue smoke is rare. Let's talk about what happens to the blue smoke coming out of the exhaust pipe of the car engine, please see below.

01 Burn engine oil, use unqualified engine oil, do not replace oil and oil cleaner when expired, use large throttle to start the car cold, lack of engine oil for a long time, long-term high-temperature operation, high-speed operation and long-term overload operation, long-term air quality is not good When the air filter expires and cannot be replaced in time, the oil pump power is insufficient, the oil pressure is too low, the oil passage is blocked, etc., it will cause the engine to burn oil, thereby shortening the service life.

02 Scratches on the cylinder wall, poor piston sealing, or severe valve wear can create gaps through which the oil used to lubricate will now enter the combustion chamber to participate in combustion, and when the oil cannot burn the vehicle, it will produce blue smoke.

03 Excessive oil filling is also the main cause of burning engine oil. Excess oil may enter the cylinder and burn, causing the oil to burn. At the same time, excess oil can also hinder the proper operation of the crankshaft arm, allowing it to do more work and increase energy consumption.

04 The ducts and valves are worn out during engine operation, resulting in excessive clearance between the two. During the air intake process, the excess oil in the rocker chamber is sucked into the combustion chamber for combustion.

Summary. Hello, this engine exhaust pipe will emit blue smoke, then this situation is that your engine piston ring is not well sealed, causing the engine to burn oil to produce blue smoke.

Hello, I am helping you sort out the answer to your question, please wait a while Your land ship is well, this Tongqing engine exhaust pipe will emit blue smoke, then this situation is that your engine piston ring seal is not good, resulting in the engine burning oil before it will produce blue smoke.

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?

Hello, I'm helping you sort out the answers to your questions, please wait a moment

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.