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List of the catalog of this article:

• 1, What is the reason for the louder roar of the car engine
• 2、The roar of the engine of the car stepping on the acceleratorVery big
• 3, The engine roars loudly when speeding up
• 4, Why does the engine roar loudly when starting

What is the reason for the louder roar of the car engine

The reason for the louder engine: When you step on the accelerator, you will find that the acceleration is not obvious, lack of power, and the engine has a hysterical sound. The most likely time to happen is when the engine is hot, or cold, or when there is a shortage of oil.

The main reasons for the loud roar of the car engine are as follows: too much oil: the instantaneous workmanship resistance of the engine becomes larger, which will increase the rotational resistance of the crankshaft and reduce the output power of the engine. In addition, excessive oil will run into the combustion chamber to participate in the combustion, causing the car to burn oil and produce blue smoke, resulting in increased fuel consumption. Add.

The valve makes an abnormal sound. Especially after the cold car starts, the valve will make a "da-da" sound, and then the hot car will get better, because the oil precipitates in the oil pan shell and is not pressed up in time when the engine starts.But if the valve keeps ringing, consider replacing the high-viscosity oil. Engine temmering failure.

The reasons for the sudden louder sound of the engine are as follows: the foot glue is aging or loose; the foot glue is the rubber glue block cushioned between the engine and the frame. Its function is to reduce the vibration and buffering of the engine during work, and to fix the engine.

There is also a relatively unpleasant sound of the engine. The most likely reason may be that the engine is too hot or too cold, and the most likely reason is that there is less oil. Other reasons are relatively complicated, such as the ignition line of the source, or the oil filter of the oil part, etc.

The reason why the engine noise becomes louder Oil: If the oil of the vehicle is too viscous, it is easy to cause problems with engine operation, and the lubrication effect becomes worse, resulting in loud engine noise.Therefore, at this time, you should go to the repair shop in time to check whether it is time to change the oil, or calculate by yourself whether the maintenance time has come.

The car stepped on the accelerator and the engine roared loudly

The sound caused by the damage of the spark plug is too loud, and the spark plug can be replaced. The spark plug is an important component of the ignition system of a gasoline engine. It can introduce high-voltage electricity into the combustion chamber and make it jump over the electrode gap to generate sparks, thus lighting the combustible mixture in the gas cylinder.

Generally, it is a normal phenomenon. Of course, the following situations are not excluded. There is a serious carbon accumulation phenomenon in the engine; the air filter element has different and smooth filtration; the oil added by the vehicle is insufficient purity; the spark plug is aging; and the cylinder is faulty.

The reason for the buzzing sound of the car engine when the refueling door is; 1. The oil is not fully lubricated to the parts of the engine. After a period of operation, the new oil can be evenly lubricated to the parts of the engine.

The big reason for the roaring sound of stepping on the accelerator is that the manual transmission stepped on the accelerator for about 3,000 rives, and then it was normal. Check whether there is a strange sound, and learn to distinguish the abnormal sound that belongs to the reasonable sound. It is difficult for ordinary car owners to distinguish which are faulty abnormal sound and which are reasonable abnormal noise.

engine roars loudly when accelerating

1. Clean the throttle valve. As soon as the engine speeds up, the noise is particularly loud. If it is caused by dirty throttle valves, the noise can be improved by cleaning the throttle valve. Repair or replace spark plugs and ignition coils.

2. Too much carbon accumulation in the engine: Too much carbon accumulation in the throttle valve will cause the engine to become louder.

3. When the engine is in operation, if it makes a dull sound similar to a clapping, it may be because there is a problem with the cylinder valve. In this case, if you drive the car very fast, the sound will disappear in the fast run.Therefore, the sound that will disappear once the express car is driven is likely to be due to the problem of the cylinder valve.

Why does the engine roar loudly when starting

Hello, the electric start motor bearing lacks oil or has too much ash; the starting motor starts the current is overloaded; the starting motor transmission gear is excessively worn; the solution--- Just check the starting motor and related transmission gears. The engine is noisy: the operation of the engine is not good (lack of cylinder or internal problems, need to be repaired).

Hello, generally, the engine speed is high when the cold car starts, and the inside of the engine is not fully lubricated, so it is normal to be louder. After the engine is preheated, it will return to normal. I hope it will be helpful to you.

The sound of the engine is directly related to the speed. The higher the speed, the louder the sound.If you step on the accelerator, the speed of the engine will increase and the sound will increase.

Old drivers who often drive will know that the noise of the engine will become louder and louder after driving for a long time, and the vibration will gradually increase. If there is a particularly loud rumbling sound after the car starts, there may be the following reasons: improper use of oil, mismatch with the engine, easy to produce carbon accumulation, and noise from the engine.

After parking for a long time, the lubricating oil in all parts of the engine flows back to the oil pan, and many abrasive surfaces are in a semi-dry state. Therefore, when starting, the lubrication is very poor and the resistance is large. The oil supply system needs to spray a large amount of oil to maintain the speed, so the engine works roughly and the noise is loud.