What should I do if the engine is loud while driving?

1. Carbon deposition in the engine, or noise isolation is not in place.

The engine is one of the main sound sources of the car, and the sound will increase significantly as the engine runs at high speed, but we need to carefully identify the noise of the engine**, if it is caused by engine shaking, it may be that a large amount of carbon deposits have been deposited inside the engine, resulting in insufficient fuel injection nozzle, and the fuel injection needs to be increased to provide sufficient power to the vehicle.

Second, the aging of the engine mount leads to abnormal noise.

The engine mount is a part that connects the engine to the body of the car, and if there is a problem in this part, the car will definitely make a noise. This part is mainly composed of metal and rubber materials, and over time, these rubber will definitely age, so it will produce noise.

3. Tire size, size and model These factors will have an impact on tire noise.

Car tires are the part that has the most contact with the road surface, and the road surface has a lot of stones, so the noise will be greater than that of a flatter road surface. If the tires are very old and the vibration of the car cannot be eliminated in time, the car may be very noisy.

Fourth, the installation of soundproof materials inside the wheel arches has a miraculous effect.

The sound insulation inside the wheel arches also has a significant impact on the tire noise transmitted to the cabin. Since the inside of the wheel arch is a nearly semi-enclosed space, the noise will only subside after repeated ejection on the wheel arch wall, and if the sound insulation measures inside the wheel arch are not done well, or no sound insulation measures are done at all, the noise will be greatly improved.

Fifth, the door tightness.

If there is obvious wind noise at the door, or the noise level on the left and right sides is obviously different, consider whether the door adhesive strip is aging or cracking. Check the tightness of the adhesive strip around the door and repair or replace it in time.

6. Aging and short circuit of electronic components, resulting in noise.

In addition to the instrument and central control, there are many large and small electronic components and wiring harnesses in the car, and some noise may be emitted as time goes by, when the components are aging or the wiring harness is short-circuited.

7. Noise caused by cooling system.

The cooling system on the car is the guarantee that the whole vehicle components provide balance, if there is a problem with the cooling system, the operation of the whole vehicle will have problems, which will inevitably lead to abnormal noise and noise.

1.The engine is fixed and loose, resulting in high engine noise, and it is necessary to inspect the fixed parts of the engine and tighten the parts;

2.If the noise caused by the loosening of plastic parts in the engine compartment is confirmed to be the noise caused by the plastic parts through inspection, the adjustment is made by fastening;

3.The engine noise is loud during cold start, and the car may be noisy due to long-term parking, and the lubricating oil flows back to the bottom of the shell, and the engine can not be fully lubricated, which is a normal phenomenon;

4.The tightness of the engine belt is not enough, resulting in high engine noise, and the tightness of the engine belt needs to be adjusted in time.

The use of poor quality engine oil will lead to insufficient combustion of the engine, and in severe cases, the engine vibration will be aggravated and the noise will become louder. Choosing a high-quality engine oil can not only better reduce noise, but also protect the car's engine and extend engine life. As a leading brand in the field of lubricating oil, Kunlun Lubrication has high quality and complete variety, especially the newly upgraded Kunlun Tianrun products, which are fully synthetic oils, with excellent viscosity stability and high temperature stability, which help to reduce fuel consumption.

It's time to change the engine oil, because poor oil condition will lead to poor internal lubrication of the engine, resulting in increased noise Remember to go to a 4S shop or a special car service center (such as Kunlun Lubrication Car Service Center) to check regularly and change the oil on time.

It is recommended that the owner regularly clean up the carbon deposits, long-term idling and poor car environment will cause carbon deposits inside the engine, and long-term failure to clean up will easily lead to large car shaking, weak power, high noise, etc.

There are two possibilities.

First, if the oil is added, the instantaneous working resistance of the engine will increase, which will increase the rotational resistance of the crankshaft, reduce the output power of the engine, and excess oil will enter the combustion chamber to participate in combustion, resulting in the vehicle burning oil and blue smoke, resulting in increased fuel consumption.

Second, the oil model is wrong. For example, it used to be fully synthetic, but now it has been changed to mineral oil, so to change the engine oil, you must go to a regular store to change the ** engine oil, counterfeit or inferior engine oil is very damaging to the engine. The oil model recommended in the maintenance manual is basically no problem.

If you hear the abnormal sound of "Zizi" in the process of driving, and this is the abnormal sound caused by the problem of the engine belt, because the abnormal sound of "Zizi" is mostly the aging of each belt group of the engine, or the belt is too loose caused by the problem of the tensioner, the friction abnormal sound, belt slippage, etc., if there is a similar "Zizi" abnormal sound, then look for the major belt groups and tensioners inside the engine, such as engine timing belt, generator belt, circulating water pump belt, air conditioning belt, power pump belt, etc. The problem that causes this abnormal noise is the abnormal sound of the engine belt, which is caused by the smooth grinding surface of the joint surface of the belt and the pulley. It usually occurs when the engine speed changes rapidly, and sometimes the belt rings when the load of the attachment driven by the belt increases.

How to solve the problem of abnormal noise of engine belt.

1. Check whether the accessories driven by the belt are damaged, stuck, loose or the power of the accessories has increased.

2. Replace the belt, or use 100 gauze to polish the joint surface of the pulley and the belt (light grinding is fine).

3. The temporary solution can be to drop 1 2 drops of oil on the joint surface of the belt and the pulley (it will not affect the belt slippage).

If it is the generator belt that rings and the headlights are more obvious, you have to take off the generator belt, turn the motor pulley to see if the generator rotates smoothly, if the generator is normal, you can check whether the battery is not stored power, because the battery storage is not good will increase the load of the generator.

When the engine starts cold, because the temperature is relatively low, and the oil in the engine is all returned to the oil pan because of the long shutdown time, at the same time, in order to make the engine reach the normal working temperature quickly, the speed of the cold start will also be high, so the cold car will feel that the engine noise is loud when it just starts, this situation is a normal phenomenon, don't worry, wait for the engine temperature to come up.

Why does the engine noise become louder when the car has been driven for a long time? It only takes 2 minutes to find out why!

If you want to listen to the sound of the engine, you must find a quiet place, because the sound insulation effect of a better car is very ideal, if you don't look at the engine's tachometer, you don't know that the car is in a lit state, and it is possible to turn the key to make a fire. When auditioning the engine, follow the following steps (personal opinion, for reference only): 1 Start the engine.

The car engine failure light is lit up to solve the problem of car repair tips.

Many car owners complain that the noise of their cars is getting louder and louder, what is the reason?

3.Water temperature: If the engine is noisy, it is also possible that the water temperature is too high.

Hello, glad to answer for you. There are three reasons why car engines are loud:

x091.Engine oil: If the oil of the vehicle is too viscous, it is easy to cause problems with the operation of the engine and the lubrication effect will deteriorate.

Many car owners complain that the noise of their cars is getting louder and louder, what is the reason?

The reasons and solutions for driving the engine is as follows: 1. The cold weather causes the engine to slack and the wheel cover speed increases. Workaround:

The sound of the car engine disappears when it heats up. 2. The plastic parts in the engine compartment are loose. Workaround:

Replace or adjust the tightness. 3. The viscosity of the oil is too high. Workaround:

Change the oil. 4. Improper operation or serious wear of the inner hole of the valve guide, and poor valve closure lead to air leakage. Workaround:

Remove the cylinder head of the Tongpeng, grind the valve, check the elasticity of the valve tension spring, and readjust the valve clearance.