Car owners who are used to seeing faults from various indicator lights，Do you know again，Small steering wheel，Able to diagnose many faults？Today，The editor will talk about the steering wheel that has a big effect in a small body，What can we judge?？

While the vehicle is moving，The chassis makes periodic noises，The cab and door shake in severe cases，The steering wheel vibrates strongly，Until your hands go numb。This means there is a problem with the car！

Jittering and numbing at idle speed

Uncommon steering wheel vibration when idling，Of course the amplitude of this jitter is not very large，Usually because of resonance，Little impact on vehicle use，Need to check whether there is any problem with the rubber sleeve of the steering wheel transmission device、Is the bolt fixing the steering wheel transmission device loose。

The car vibrates at 30 to 40 kilometers per hour

This situation occurs mostly because the tires are rubbed during daily use、Caused by deformation due to collision or old age，Just replace the tires at this time。

The car vibrates at 80 to 90 kilometers per hour

This situation is mostly caused by tire deformation or vehicle transmission system。At this time，Check whether the positioning angles and toe-in of the front wheels meet the requirements，If it is inaccurate, it should be adjusted，Or set up the front axle and try turning the wheels，Check the static balance of the wheels and whether the tires are excessively deformed，If the deformation is too large, it should be replaced。

Jittering when braking at high speed

Braking too hard、Overfrequency may cause brake discs、seabet myBrake pad overheating，Deformation when exposed to cold，Causing steering wheel shaking。Usually replacing brake discs、After brake pads，Symptoms can be resolved。

Normal driving on flat roads, low-lying roadsException

This is due to the car being driven，The ball head of the tie rod is worn and loose or the rubber sleeve at the joint has fallen off，It may also be that the tires have become irregular due to wear，Should be sent to a professional maintenance center for inspection，Replace damaged parts。

If you find that the car has just started，The steering wheel feels very heavy when you turn it on the first time，Just try again later，Usually it’s because the driver is giving directions，There is a valve in the steering gear that will open，Enable oil circulation。

Once the valve is stuck, the steering wheel will sink。But if you keep turning it will be difficult，Generally, there may be several situations:

Insufficient tire pressure

Pay special attention to the front tire pressure，If there is a tire pressure monitor in the car，It will be easier to find the problem。

Parts of the steering system

The rolling bearings and sliding bearings in various parts of the steering system are too tight，Poor bearing lubrication，Steering tie rod、The ball head of the tie rod is adjusted too tight or lacks oil，Bending of steering shaft and bushing，Causing jam。

Improper coordination

The front wheel toe is improperly adjusted, and the front car or frame is bent.

There are various reasons for deviation，But it is basically caused by left and right asymmetry。

Asymmetry of left and right tire pressures

The simpler and easier to handle situation isThe left and right tire pressures are asymmetrical,If the tire pressure is low, the car will tend to veer in that direction。In a word，If you have any questions, check the tire pressure first，There is nothing wrong with the tire pressure, let’s think more deeply。

Suspension parts are aging and worn

In more severe cases, it may be due to seabet ioaging and wear of suspension components，Caused by different gaps between the left and right，This situation usually occurs in cars that are more than 8 years old，It can be completely solved by replacing parts。

I stepped on the brakes before going astray

If it is driving normally and does not deviate，Wandering when braking，And the harder you step, the more severe the bias will be。This may be caused by the unbalanced braking force of the braking system on the left and right wheels，It is best to monitor the braking system。

Steering wheel is crooked

The steering wheel is crooked because the positioning parameters are incorrect，Exactly offset left and right，The burden at this time is all borne by the wheels。

First check if the brakes are pressed,Secondly, is this sound caused by turning the steering wheel after turning on the steering switch?，If the above is not the case，Then it is necessary to determine the direction of the sound。

The sound came from under the steering wheel

Check the steering column dust cover，If the steering column dust cover lacks lubrication, a friction sound will occur，Just put some butter inside the dust jacket and the sound will go away。

The sound came from the steering wheel

This problem is mostly caused by the interference of the airbag hairspring in the steering wheel，Remove the steering wheel airbag hairspring and apply some butter to see if it still rings，If it still rings, replace the airbag hairspring，The air bag hairspring may be damaged。

Pay attention to check the power assist system and steering gear

1、Check whether there is oil leakage from the booster oil tank，Is there any oil leakage at the pipe joints。

2. After confirming that there is no oil leakage, check whether there is lack of oil in the booster oil tank.

3. Check whether the hydraulic oil has become dirty or deteriorated.

4. Check whether the booster pump is damaged.

1、The internal gear rack of the steering gear is seriously worn，Can’t cooperate well，Abnormal seabet mynoise caused by friction and collision during steering。

2. The electronic power-assist servo motor is faulty and needs to be replaced.

3、The sealing ring of the universal joint or the internal bearing of the steering gear is aged or damaged。

4、Power-assisted motor jammed，Hold the steering wheel with your hands，The abnormal noise will disappear。