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List of the catalog of this article:

• 1. What is the reason why the engine sound becomes louder
• 2, What is the reason for the loud engine noise?
• 3, What is the reason for the loud noise of the car engine?
• 4 、What is the reason for the big buzzing of the engine

What is the reason for the louder engine sound

1. Analysis of the specific reasons for the loud engine sound: 1. Step on the accelerator, find that the acceleration is not obvious, lacks 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.

2. The reasons are as follows: it is not lubricated enough when the cold car starts, and the hydraulic column and mechanical rocker arm do not work properly, resulting in a rattling sound. The condition of the oil is not right: if the viscosity of the oil is too high or too low, the engine will make noise. The belt is not elastic enough: the engine makes a squeaky sound at work.

3. The sudden increase in engine sound is closely related to engine oil. Because of the beginning of the new carOil usually has low viscosity and good heat dissipation. With a little abrasive to help the parts grind together, the lubrication is stronger, and the natural sound is lower.

4. The reason why the engine noise is loud is: First, the problem of the filter, the sealing of the rubber ring is not good. Second, the engine bearing is damaged. Third, the reason for the exhaust pipe. It is normal for the engine to start with a cold car in winter, and the sound will be louder than usual.

5. The reason for the loud noise of the car engine: Reason 1: the foot glue is aging or loose; the foot glue is the rubber 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.

What is the reason for the loud engine noise?

1. The reasons for the loud engine noise include: oil filter problems, poor sealing of the rubber ring, damage to the engine bearing, the cause of the exhaust pipe, and the normal phenomenon that the sound is louder than usual during cold start in winter. Specifically, there are three main reasons for engine noise: the first category is combustion noise, which is related to the type of oil.

2. There are many reasons for the loud noise of the car engine. The specific analysis is as follows: too much carbon accumulation, the more the old oil is used, the thinner it is. Carbon accumulation, the oil is easy to escape when the oil is thin, carbon accumulation, losing a lot of power and replacing the new oil, the engine cannot adapt to the viscosity of the oil, the speed may become higher, and the engine noise The sound may become louder.

3. The reasons are as follows: the cold car is not lubricated enough when starting, and the hydraulic column and mechanical rocker arm do not work properly, resulting in the rattling sound.The condition of the oil is not right: if the viscosity of the oil is too high or too low, the engine will make noise. The belt is not elastic enough: the engine makes a squeaky sound at work.

What is the reason for the loud noise of the car engine?

First, combustion noise is the type of oil. If it is a gasoline engine, it will produce greater combustion noise when gasoline explodes and surface ignitions abnormal combustion. If it is a diesel engine, the noise is caused by the vibration of various parts of the engine due to the sharp rise in the air pressure in the combustion chamber. Therefore, generally speaking, the noise of diesel engines is higher than that of gasoline engines.

Only by figuring out the real reason for the loud engine noise can we "prepare the right medicine" and avoid the waste of engine oil and the increase in vehicle maintenance costs caused by blind oil replacement.

Engine noise caused by incorrect oil condition. Oil is an important part of engine lubrication. When there is a problem with the oil, it will affect the working condition of the engine. When the viscosity of the oil is too high, it is easy to cause problems with engine operation, poor lubrication, and cause friction and noise in engine operation.

When driving a car, the engine sound is very loud. There may be the following reasons: the engine accumulates too much carbon. During the use of the vehicle, slight carbon accumulation will not affect the use; moderate carbon accumulation will increase fuel consumption and reduce power; heavy carbon accumulation will lead to vehicle shaking, lack of fire, loud noise, weakened power and sharp increase in fuel consumption.

Analysis of the specific reasons for the loud engine noise: 1. Step on the accelerator and find that the acceleration is not obvious, lacks 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.

What are the reasons why the sound of the car engine becomes louder?

1. Add the wrong number of gasoline, or the gasoline is not qualified. If the car needs 9No. 7 gasoline is added to No. 93 oil, which will not only reduce the life of the engine, but also make it easier to produce carbon accumulation, but also make the exhaust gas black. At this time, the sound of the car engine is obviously louder.

2. The engine accumulates too much carbon. The engine oil is used inappropriately or the oil becomes dirty. In addition, most of the engine noise is caused by the abnormal noise of the engine: the screws under the engine are loose. A relatively common minor fault, tightening or adjusting the under-engine guard screw. The engine claw pad is aging.

3. The gasoline with the wrong number, or the gasoline is not qualified. If the car needs No. 97 gasoline, but add No. 93 gasoline, it will not only shorten the life of the engine, but also make it easier for the exhaust gas to turn black. At this time, the sound of the car engine is obviously louder.Nozzle atomization will also cause abnormal engine noise. Shock absorber failure.

4. The reasons why the engine sound becomes louder are: the oil is low or the oil is not hot when the car is cold, and the oil pressure is insufficient. There are too many impurities or dirt in the oil, which makes it impossible to effectively adjust the oil pressure. The engine has mechanical interference and the lubricating oil road is blocked.

5. Analysis of the specific reasons for the loud engine noise: 1. When you step on the accelerator, you will find that the acceleration is not obvious, there is a 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.

6. The main reasons why the sound of the car engine becomes louder are the following three points: the noise generated by acceleration. To judge whether these noises are normal, the best way is to compare the difference between new and old noises whether you have heard similar noises before.If the noise of the whole vehicle is too loud, there may be a problem. Belt noise.

What is the reason for the loud buzzing sound of the engine

The loud engine sound when driving the car may be mainly due to the following reasons: too much carbon accumulation in the engine. During the use of the vehicle, slight carbon accumulation will not affect the use; moderate carbon accumulation will increase fuel consumption and reduce power; heavy carbon accumulation will lead to vehicle shaking, lack of fire, loud noise, weakened power and sharp increase in fuel consumption.

The reasons for engine noise are roughly as follows: First, combustion noise is the type of oil. If it is a gasoline engine, when gasoline explodes and surface ignition and other abnormal combustion, it will produce a large combustion noise. If it is a diesel engine, the noise is caused by the vibration of various parts of the engine due to the sharp rise in the air pressure in the combustion chamber.

The abnormal sound of the bearing is a regular buzzing sound, such as the engine tightening wheel, idler, etc. At this time, the relevant parts need to be replaced. Only by figuring out the real reason for the loud engine noise can we "put the right medicine" and avoid the waste of oil and the increase in vehicle maintenance costs caused by blindly replacing the oil.

The temperature sensor or temperature regulator fails; the reason why the car buzzes at low speed or in variable speed is that the gap between the piston and the cylinder wall is too large; the buzzing at high speed is caused by sound resonance. The temperature sensor or temperature regulator has failed.