What is the problem with the blue smoke after the Cruze overhaul

Blue smoke from the engine is a manifestation of oil combustion, first determine the cause, and then consider how to solve it.

1. Due to the aging of the valve oil seal and the lack of tight sealing caused by the loss of elasticity of the rubber, the engine oil penetrates into the combustion chamber for combustion, thus being consumed. The phenomenon is that the first motor in the morning hits the car, there is a puff of blue smoke, and the car disappears quickly after the car is hot.

2. Due to the wear of the cylinder barrel or the insufficient tension of the piston ring and the counterpart of the piston ring, the phenomenon of blue smoke comes out when the cold car or the hot car is above 3000 rpm, and the amount of blue smoke depends on the degree of wear.

3. It is recommended to check and repair, not necessarily overhaul, if the wear of the cylinder liner is not serious, only replace the piston ring and valve seal.

Vehicles with the phenomenon of burning engine oil will have different degrees of exhaust "blue smoke" symptoms, oil consumption has increased significantly, and the oil has to be replenished in a short time. The phenomenon of burning engine oil in the vehicle will lead to an increase in carbon deposits in the combustion chamber, a decrease in the economy and power of the vehicle, and excessive exhaust emissions.

Hello. It is normal at first, and it may be caused by the combustion of residual oil during assembly, if it has been like this, it means that it has not been repaired. Hope it helps.

It feels like the valve oil seal is not installed in place, or the piston ring is installed in the opposite direction, and you can go directly to the repair shop just after the overhaul.

There will be more than one run, and there is no match for the piston ring.

1. Black smoke from the exhaust pipe: fault judgment: true fault. Cause analysis: It indicates that the mixture is too concentrated and the combustion is incomplete. The main reason is the car engine.

Overload, insufficient cylinder pressure, low engine temperature, carburetor.

Improper adjustment, air cleaner.

Blockage, individual cylinders not working and late ignition, etc. When excluding, check whether the choke is fully opened in time, and overhaul if necessary; After the flameout, look at the main nozzle from the carburetor mouth, if there is oil injection or oil dripping, the oil level of the float chamber is too high, it should be adjusted to the specified range, and the main measuring hole should be tightened or replaced; Air filter.

Blockages, which should be cleaned, unclogged or replaced.

2. The exhaust pipe of the vehicle emits blue smoke: fault judgment: true fault. Cause analysis: It is caused by a large amount of oil entering the cylinder and not being completely burned. Remove the spark plug.

Serious carbon deposits can be detected. It is necessary to check whether the oil level of the dipstick is too high; whether the gap between the cylinder and the piston is too large; Whether the piston ring is reversed; Whether the intake valve guide is worn or sealed.

whether it is damaged; Whether the cylinder head gasket is ablated, etc., should be repaired if necessary.

3. White smoke from the exhaust pipe of the vehicle, serious when the car is cold, and no white smoke will be emitted after the car is hot: fault judgment: false fault. Cause analysis: This is because the gasoline contains water, and the engine is too cold, at this time, the fuel entering the cylinder is not completely burned, resulting in fog spots or water vapor.

Produces the formation of white smoke. In winter or during the rainy season, when the car is first started, white smoke can often be seen. It doesn't matter, as soon as the engine temperature rises, the white smoke disappears. This condition does not need to be serviced.

4. The engine noise is large, and when the vehicle steps on the accelerator pedal in place, there is a "rumbling, rumbling" abnormal sound, and there is a sense of vibration in the engine compartment. Fault Judgment: Class faults are used.

Cause analysis: When lifting the vehicle, you can see that the bottom guard of the engine has bump marks. If there is an obstacle on the road and you force your way through, the underside guard will be bumped.

If the distance between the bottom pan and the engine oil pan becomes closer after deformation, the collision between the oil pan and the bottom guard plate during acceleration will make an abnormal noise and make the body vibrate.

There are two cases for this:1White smoke comes out of the exhaust pipe of the vehicle, and it doesn't come out when the car is hot:

Don't worry about this problem, because gasoline contains water and the engine is too cold, and the fuel entering the cylinder is not completely combusted, resulting in fog spots or water vapor to form white smoke. It is more noticeable in winter or during the rainy season. When the engine temperature rises, the white smoke will disappear, and this does not need to be repaired.

2.The hot car has not disappeared, that is, whether the antifreeze is enough, check and replenish it in time. It is also possible that the engine is boiling water, and the only reason for this is to replace the cylinder gasket.

Hello, you're bai

If you have any questions, please continue to consult, your satisfaction with my pursuit! Have a great day!! [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

When the vehicle is just started and accelerates sharply, there will be some oil in the valve oil seal to the DAO combustion chamber, and some oil will be stored on the cylinder wall.

Answer, if there is a turbocharger, there will be some oil at the turbocharger turbine, and it is normal for blue smoke to be emitted in this situation. If you want to check the engine when you accelerate rapidly, you can see how much oil is consumed. [If you have a problem with the car, ask the car master.]

4S shop professional technician, 10 minutes to solve. 】

Xue Baoqin Xiaoluo, Douguan (Doutong).

1.Blue Hall smoke is mainly caused by the combustion of engine oil in car engines. The oil will enter the engine in a variety of ways, burn in the engine, and the car will emit white smoke.

Replace the oil that is not qualified. 2.There is too much oil in the oil pool of the fuel tank, and the crankshaft when rotating at high speed will cause the oil to splash into the combustion chamber due to combustion; Extract the amount of oil that has been searched too much.

3.The valve seal is aging and the hardening cannot expand and contract with the thermal expansion and contraction of the valve temperature, resulting in cold oil entering the cylinder from the oil seal. Replace the valve.

Hello, glad your question, the reason for the black smoke from the Chevrolet Cruze engine 1The flammable mixture is too thick. 2.

There is too much oil in the engine fuel. 3.Poor sealing of piston rings or crankshaft oil seals.

4.There is moisture in the fuel. 5.

Bad spark plug 6The air filter has a dirty transport chain. You need to detect defeats.

Hope it helps.

1. There are two kinds of white smoke, one is the water vapor discharged by driving in a low temperature environment, which is a normal phenomenon, and the other is the white smoke caused by the ignition of the early lease or the mixture is too thin.

2. Drive the vehicle to the hall room, start the vehicle when the water temperature is normal, if there is still white smoke in the exhaust, it is not water vapor, and it is necessary to check the ignition advance angle and mixture concentration to judge the fault point.

Summary. Hello. Black smoke from the exhaust pipe.

The biggest possibility is that the engine exhaust valve is damaged, causing the oil engine to enter the throttle position to produce carbon deposits, which in turn affects the air supply of the engine and the mixing ratio of the engine mixture. Check whether the release valve is damaged, and replace it with a new one if it is damaged; Clean the throttle and match the data for the throttle.

Have a great day!

What's going on with the Cruze emitting black smoke.

Hello. The exhaust pipe is black and cracked. The biggest possibility is that the engine exhaust valve is damaged, causing the oil engine to enter the throttle position and produce carbon deposits, which will affect the air supply of the engine and the mixing ratio of the engine mixture.

Check whether the release valve is damaged, and replace it with a new one if it is damaged; Clean the throttle and match the data for the throttle. Have a great day!

Just changed the front and rear oxygen sensors.

Hello. A big reason for the black smoke is what I said above!

Now the airplane law is blocked.

It's normal to get stuck in traffic at this time, and the navigation is all red.

I'm talking about the wastegate blocking now.

Yes, none of the exhaust gases produced can be discharged normally!