How to solve the abnormal sound of hitting the direction when turning

Analysis of the causes of abnormal noise when turning the car and suggested solutions: 1. The friction steering wheel between plastic parts is composed of various plastic parts, if the gap is too small when turning, there will always be abnormal noise, especially for new cars, it is good to run in for a period of time. If there is still an abnormal sound after the run-in, you can try to reinstall the steering wheel.

2. The friction between the steering column and the foot pad Sometimes the foot pad installed after the rear is too large, and it is in direct contact with the steering column, so the steering column will produce friction when it rotates. 3. Friends who have removed the steering wheel should pay more attention to the failure of the airbag hairspring in the steering wheel, which may be that the airbag hairspring is broken or the airbag hairspring plug is not plugged in properly, and the airbag hairspring or fixed plug can be replaced. 4. The steering tie rod ball joint is aging, and there is a space to replace the steering tie rod ball joint, but remember to do four-wheel alignment after replacement.

5. If the dust jacket of the steering machine leaks oil, replace the dust jacket or re-butter it. Buttering is only a stopgap measure, though. 6. If the steering machine is faulty, there is a "cluck" sound when hitting the direction, it may be that the gear gap between the steering machine and the gear is too large, and the steering machine can be replaced.

7. When the plane bearing is faulty and the top rubber is in the direction, there is a "special special" sound, which is likely to be the failure of the shock absorber top rubber or plane bearing, and it can be replaced. 8. Improper tightness or aging of the booster beltFor mechanical hydraulic assistance, if the tightness of the belt is improper or aging, there will be abnormal noise, and the belt can be adjusted or replaced. 9. If the steering oil is too dirty, it will increase the pressure of the power assist system, and the power pump will have a "buzzing" sound, and the power assist oil can be replaced.

There are several reasons why the steering wheel squeaks.

1. This situation generally appears in the model of mechanical hydraulic power steering, which is a very common way of steering power in the past, referred to as HPS in English, with mature and reliable technology and low cost. This type of steering power assist converts a part of the engine's power output into hydraulic pump pressure, which exerts auxiliary force on the steering system to steer the tires. When the steering wheel is not turned, the pressure in the chambers on both sides of the piston is the same and it is in equilibrium.

When the steering wheel rotates, the mechanical control valve connected to the steering column will be opened or closed accordingly, one side of the oil will no longer pass through the hydraulic cylinder and directly flow back to the oil storage tank, the other side of the oil continues to be injected into the hydraulic cylinder, the pressure difference between the two sides of the piston will be pushed under the action of the hydraulic force, and then produce auxiliary force, at this time we will feel that the steering wheel is not so laborious.

2. The steering pump drives the belt to slip. The steering pump is driven by a belt, and if the friction between the belt and the pulley is too small, the belt will slip on the pulley, and there will be a squeaky sound at this time. It may be caused by loose belt adjustment, excessive wear of the grooves of the pulley, or the new belt does not fit well with the old pulley.

A simple way to tell is to pour a little water on the belt when there is a noise, if the noise goes away, it means that the belt is slipping. At this time, first adjust the tension of the belt, if there is still a sound after adjustment, you can use it for a period of time to make the belt and the pulley fully match and then see if it is still ringing, if it is still ringing, you have to replace the pulley.

Causes of abnormal sound in the direction of hitting: 1. The sound made outside the car: 1. The plane bearing of the shock absorber lacks oil

Open the front cover to hear if the sound comes from the position of the top seat of the shock absorber, if it is the plane bearing of the shock absorber, you can apply some butter on the plane bearing, if it still rings after coating, it can only be replaced. 2. Loose balance bar glue: Check whether the balance bar glue is loose.

If there is an abnormal sound in the direction, the first thing to see is that it is sent out, whether it is inside the car or outside the car, and the problem is different, and we have to think of solutions according to different problems.

1. Friction between plastic parts: this abnormal sound will have a certain relationship with the temperature change, after the temperature decreases, especially in the winter in the north, the plastic will become hard, and the friction will have abnormal noise. In addition, this will also happen in new cars, the steering wheel is composed of various plastic parts, and there will always be friction when the steering wheel is rotated if the gap between them is too small, and it will be good to run in for a while.

2. Friction between the steering column and the pad: This is more common, if the mat installed after the car is too large, and the steering column has direct contact, with the rotation of the steering column will produce friction, as long as the position of the pad is adjusted or the pad can be replaced.

3. The airbag hairspring in the steering wheel is faulty: the car that has removed the steering wheel should pay more attention, it may be that the airbag hairspring is broken or the airbag hairspring plug is not plugged in, and it can be replaced or fixed at the store.

4. The steering tie rod ball joint is aging and has an open space: this needs to replace the steering tie rod ball joint, and after the replacement, it is necessary to do four-wheel alignment.

5. Oil leakage of the dust jacket of the steering machine: replace the dust jacket or re-butter to solve the problem. Re-buttering is a stopgap measure.

6. Steering machine failure: If there is a more frightening "cluck" abnormal sound in the direction, it may be caused by the steering machine with too large gear clearance, and the steering machine needs to be replaced.

7. Plane bearing top rubber failure: When the direction of rotation comes to the sound of "Tetete", it is likely that the shock absorber top rubber plane bearing is faulty and needs to be replaced.

8. Improper tightness or aging of the booster belt: For mechanical hydraulic assistance, if the booster belt is not properly tightened or aged, there will be an abnormal sound, adjust the tightness of the belt or replace the belt.

9. The steering power oil is too dirty: if the power assist oil is too dirty, it will increase the pressure of the power assist system, and the power pump will have a "buzzing" sound, so it is necessary to replace the power steering oil in time. (Photo by Zou Ting1) 2019

Or go to the after-sales service to check it and see what the reason is, as long as there is a problem within the warranty, it will be replaced and repaired free of charge. Such as satisfied.

The abnormal noise in the direction of travel may be the wear of the half-shaft cage. The operation method is to disassemble and check whether the inner walls of the left and right inner cages are worn and pitted. In most cases, wear will result in a pit on the inner wall of the inner cage that is in constant contact with the ball bearing sheath, i.e. the part that transmits torque (stress point).

After the turn signal, the clip sound will ** come back. When the steering wheel turns with a flutter, it will produce three bumps.

Noise from the upright dust cover. Whether you're driving or driving, as long as you're behind the wheel, you'll hear sounds coming from under the steering wheel. Check the steering column's dust cover.

The airbag balance spring interferes with the sound. The sound when steering comes from inside the steering wheel, and this problem is mostly caused by interference from the airbag balance spring inside the steering wheel.

Shock absorber plane bearing sound. The sound heard by the steering wheel comes from outside the car, which may be caused by a lack of oil in the plane bearings of the shock absorbers.

If the sound is not coming from the flat bearing of the shock absorber, you need to check the equalizer bar glue for loose or damaged damage.

Loose damage to the glue of the equalizer bar will produce noise not only when driving in the direction, but also when crossing uneven roads. Loosening of the glue of the balance bar can be solved by adding a gasket, which can only be replaced if damaged.

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Check the flat bearings above the lower two front shocks for wear. Whether the ball head of the steering machine is loose.

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. In the case of a turbocharged engine, there is a must be a difference between the sound and the sound of a naturally aspirated engine; 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.

The identification of car noise is limited, and it is difficult to use special instruments to measure the sound of the car, 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.

1. Abnormal sound occurs after turning on the steering switch.

Symptom: We turn on the steering switch and then turn on the steering wheel. Normal is not any abnormal sound; And suddenly you hear an abnormal sound of "click, click" from under the steering wheel, then it is abnormal!

Cause analysis: Since there will be abnormal sounds after the steering switch is turned on, we should analyze the reasons related to the switch. After removing the steering wheel, we turned on the steering switch and found that the aftertaste device of the steering switch was faulty, causing the steering wheel to interfere with the switch return device in the left and right directions, resulting in abnormal noise.

2. "Squeak" abnormal sound in the left and right directions.

Fault phenomenon: When the car turns left and right, people find that there is a "squeak" friction sound under the steering wheel, and the abnormal sound is similar to the rubber friction sound. Whether in the same direction or in the direction of travel, there will be an abnormal sound.

Cause analysis: This sound is mainly caused by the interference friction between the propeller shaft and the dust cover. There are two reasons for this, one is that the dust cover is installed at an abnormal angle and has abnormal friction. The second is the lack of grease here.

In general, if these two problems are solved, the anomalous noise can be solved.

3. The lower part of the steering wheel makes a "rustling" sound.

Fault phenomenon: "rustling" friction sound appears in the lower part of the steering wheel, when the left and right directions are hit. Anomalous sounds are present from all angles, and are louder when the steering is faster.

Cause analysis: If the sound appears under the steering wheel, it proves that the sound is related to the airbag spiral cable tubing. It is usually caused by damage or lack of lubrication inside the spiral cable. Since the spiral cable cannot be disassembled and repaired, after the abnormal noise, if it is confirmed that the internal fault of the spiral cable is confirmed, it can only be replaced, and cannot be repaired by itself.

Hope, thank you!