What s going on with the car squeaking in the direction

First of all, it is necessary to distinguish between normal and abnormal sounds. The normal vibration sound of each system component (such as the noise on the surface of the engine), the impact sound of the gear when shifting, the air intake sound and exhaust sound of using gas as the working source, and the gear meshing noise are all normal sounds. Abnormal noise (abnormal noise) can be divided into slight noise, general noise and malignant noise according to the impact on the performance of the car.

Slight noise, such as the flashover sound of high-voltage electric leakage, the slight loose sound of rolling bearings, etc., the general volume is small, the degree of wear of the parts is not large, and there is no significant change for a long time, and this kind of fault can still maintain the normal operation of the car without repair.

On the issue of abnormal noise of automobiles, it is difficult for ordinary car owners to distinguish which ones are abnormal noises and which ones are reasonable abnormal noises. Only nearly 20% of the vehicles that went to the repair shop to detect abnormal noises really had problems. Models equipped with turbocharged engines are different; Models with engine guards may also make noises due to friction; After some car owners come into contact with different cars, it is likely that due to their lack of understanding of mechanical knowledge, they mistake reasonable abnormal noise as a vehicle failure.

Therefore, learn to distinguish the abnormal noise of the car and avoid wasting time and energy.

Second, the identification method of car noise:

In practice, due to the limitations of working conditions, it is difficult to measure the sound of the car with special instruments, and the sound of the car can only be described and compared with the judgment of the sound in daily life. For example, the "rattle" sound caused by the dry friction of the bearing, and the "click" sound similar to the small hammer hitting the cement floor caused by the excessive valve clearance.

1. Correctly distinguish between normal and abnormal sounds.

The vibration of each mechanism in the work of the car will emit a variety of sounds, but the sound does not mean that the car is faulty, in order to avoid unnecessary disassembly, we must first distinguish between normal sound and abnormal noise. The normal vibration sound of each system component (such as the noise on the surface of the engine), the impact sound of the gear when shifting, the air intake sound and exhaust sound of using gas as the working source, and the gear meshing noise are all normal sounds. Abnormal noise (abnormal noise) can be divided into slight noise, general noise and malignant noise according to the impact on the performance of the car.

Slight noise, such as the flashover sound of high-voltage electric leakage, the slight loose sound of rolling bearings, etc., the general volume is small, the degree of wear of the parts is not large, and there is no significant change for a long time, and this kind of fault can still maintain the normal operation of the car without repair.

3. When diagnosing abnormal noise, attention should be paid to creating good auscultation conditions and trying to eliminate the interference of other noises, so as not to affect the accuracy of judgment.

It is best to consciously amplify or reduce the sound, that is, use a screw or other metal rod as a stestological instrument to contact the sound part to amplify the sound, or use a single cylinder fire cut-off to reduce the sound to meet the diagnostic needs. The auscultation site should be kept quiet to minimize human interference.

This abnormal noise is caused by a disturbed balance of the directional transmission inside, or excessive wear of the transmission shaft and spline shaft. In medium-speed driving, especially on uneven roads, there will be sounds or other periodic abnormal noises in a dozen directions. If the steering wheel vibrates abnormally, it is necessary to inspect the vehicle in detail to see if the dynamic balance of the steering gear, whether the transmission shaft and its spline shaft and spline sleeve are worn, and whether the zero parts are tightened.

The cause of the squeak when the steering wheel of the car is turned and how to deal with it:

1. Friction between plastic parts.

Because the steering wheel is usually made of plastic parts, if the temperature becomes colder, the plastic will harden, and there is a natural possibility of friction sound.

2. Abnormal noise coming from the steering wheel.

If the abnormal sound comes from the steering wheel, then the problem is likely to be caused by the airbag hairspring in the steering wheel, remove the steering wheel airbag hairspring and apply some butter to see if it still sounds, if it still rings, replace the airbag hairspring, because the airbag hairspring is damaged. Be careful to remove the steering wheel gently, or unplug the airbag fuse to avoid the airbag from deploying.

3. The ball joint of the steering tie rod is aging.

If the steering tie rod ball joint is aging, then it will cause the steering wheel to shake and make a sound, which is usually replaced by the steering tie rod ball joint and the four wheel alignment after replacement.

4. The abnormal sound emitted by the balance bar.

If it is not the sound of the shock absorber, then check whether the balance bar rubber is loose or damaged, the balance bar rubber is loose and damaged, and the balance bar rubber is loose and damaged not only when playing in the direction, but also when crossing uneven roads, and the loose balance bar rubber can be solved by adding a gasket, and if it is damaged, it can only be replaced.

5. The plane bearing of the shock absorber makes an abnormal sound.

Just open the front cover to listen to whether the sound comes from the position of the top seat of the shock absorber, so that you can know whether it is the sound of the plane bearing of the shock absorber, the plane bearing of the shock absorber sounds, you can apply some butter on the plane bearing, if it still rings after coating, it can only be replaced.

6. Steering machine failure.

If the abnormal noise during steering is very large, then it may be caused by too large gear clearance between the steering machine and the steering machine, and the steering machine needs to be replaced.

7. Improper tightness or aging of the power belt.

For mechanical hydraulic assistance, if the power belt is not properly tightened or aged, there will be an abnormal sound, adjust the belt tightness or replace the belt.

When turning the steering wheel, there is an abnormal sound of silk drawing, which is mainly caused by the friction between the steering wheel and the plastic cover on the combination switch. This abnormal sound will have a certain relationship with the temperature change, and after the temperature decreases in winter, this abnormal sound will be more obvious, because the plastic will harden after the temperature decreases, so there will be some abnormal noise when rubbing.

1. The cause of the abnormal sound of the steering machine.

1. The steering string is not lubricated and has high friction;

2. Check that the steering power assist oil is less;

3. Check that there is a problem with the universal joint;

4. The chassis suspension balance rod lifting lug sleeve is aging and hardening;

5. The plane bearing is broken.

Second, the correct way to play the steering wheel.

If there is an abnormal sound in the direction of the car, and the direction becomes heavier, it is broken, so don't mess with the money.

The main reasons for the squeak of the steering wheel are as follows:

1. The steering column is lubricated and has high friction.

2. Check that the steering power supply is less. You can apply some butter.

3. Check whether the universal joint is a problem. When you turn the steering wheel, you think that there is a "gurgling" sound from the bottom of the steering wheel, then it may be the sound of the cross joint in the direction column, and you can use grease to lubricate the lower cross joint, if there is still one, then you need to replace this part.

4. The chassis suspension balance rod lifting lug sleeve is aging and hardening; The loosening of the glue of the balance bar can be solved by adding a gasket, and if it is damaged, it can only be replaced.

5. The plane bearing is broken. The flat bearing of the shock absorber sounds, you can apply some butter to the flat bearing, if it still rings after application, you can only replace it.

The reason for the squeaky of the steering wheel: the steering system of the vehicle is malfunctioning.

The steering wheel of the motor vehicle can control the execution of the motor vehicle or turn left to right, when the steering wheel of the motor vehicle is killed, there is an abnormal sound, it may be that the steering system of the vehicle is faulty, and it is necessary to go to the local after-sales service or maintenance plant to check the steering mechanism of the vehicle, if the problem is found, it needs to be repaired in time.

The right way to get behind the wheelThe correct way to grip the steering wheel is 9 o'clock on the left hand and 3 o'clock on the right hand, that is, the two hands are placed symmetrically on both sides of the steering wheel, and the thumb is gently placed on the inside of the steering wheel, which is designed with grooves in most models.