What s going on with a strange noise in front of the car

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.

1.Carbon deposits. Carbon deposits in automobiles have many impacts on vehicles, including noise and vibration. Carbon deposition itself will affect the combustion reaction, so that the engine can not run well, in this case, the car will have many abnormal phenomena, such as the often said car idle jitter problem, which is important to have an important relationship with carbon deposition. If you haven't cleaned up carbon deposits for a long time, it's best to go to a repair shop and inspect the inside of the engine with an endoscope to determine whether you want to remove carbon deposits.

2.Window strips are aging.

The window adhesive strip of the car has a natural aging process, especially in the environment where it is often exposed to the sun and touched by water, the aging rate of the adhesive strip will be very fast. The aging rubber strip loses its original flexibility and elasticity, and becomes very brittle and hard, so the contact with the glass is not close, and during the car driving, the glass collides with the rubber strip, which will produce a great abnormal sound, and the window makes a "pop" sound.

The question is that this time I changed two front tires to make an abnormal noise.

AnswerIn this case, if the strip has become very hard, you can replace the strip in time, and if it has not been used for a long time, you can also use the strip softener to soften it. Before softening, clean the dust and small stones in the cracks of the rubber strip, and then spray it with a rubber softener, after a period of time, the rubber strip will soften and regain its elasticity, and the noise will be reduced a lot.

Question: The mechanic said that the shock absorber was bent off.

The car itself also has a variety of noise and vibration elimination systems, such as the muffler in the exhaust pipe, which can cancel the noise generated by the exhaust, and the shock absorber under the chassis, which can balance the vibration of the car in the driving state. If the car feels very strong vibration when driving, and it shakes left and right, it is likely that the shock absorber is damaged and needs to be checked in time.

Question: He hasn't figured out the real reason yet, he's just estimating.

The so-called component noise refers to some parts on the car, which produce noise under certain circumstances. For example, the engine intake, the friction between the surface of the car and the air, the contact between the tires and the ground, etc., these noises are generally not caused by car failure, but the impact on the comfort of the car will be relatively large, so you can also find corresponding solutions to solve them.

Ask if he won't ring until the tire is changed, if he broke it.

Answer: For example, for wind noise, after reducing the driving speed, it will be reduced a lot, if it is often driving at high speed, you can also spray sound insulation materials on the surface of the car, and install sealing strips on the gaps on the surface of the car can effectively reduce noise; For tire noise, it is necessary to replace the silent tire, and the engine noise can be added with sound-absorbing foam material, which has a certain effect.

The question is either a madman or a gurgling sound on the road, on both sides.

Abnormal car noise is a fault that cannot be ignored in many situations, especially if the road is bad. As it stands, a lot of car noise is caused by tires. Place the vehicle on flat ground and check the tire tread.

If the middle part of the tread wears out quickly, it is usually because the tire pressure is too high, which can increase the protruding area of the middle section. The area of this part is more prominent, so the bearing capacity is relatively large, which accelerates wear. In the later stages, when the tire pressure drops, the middle part sinks slightly, and an abnormal sound is produced when walking on the road.

The reasons for the abnormal noise in front of the car are: 1. The abnormal noise of the tires: the tire tread is deformed, the bag is lifted, the wear is serious or the air pressure is insufficient; 2. Abnormal engine noise:

Problems with parts or kinematics; 3. Abnormal sound of the body: the rigidity of the body is not enough, which leads to the deformation of the vehicle during driving, and the friction between the door and the frame or the dewelding of some positions produces friction between the steel plates. The solution to the abnormal noise in front of the car is:

1. Check whether the tire tread is deformed, packaged, seriously worn or insufficient air pressure; 2. Check whether there is any problem with the zero tease training parts of the engine; 3. Check whether it is an abnormal sound of the body.