Why does the car wheel shake slightly?

Slight shaking of car wheels may be caused by many reasons, mainly including: 12

Tire problems: Too high or too low tire pressure, abnormal tire wear, unbalanced or deformed tires, etc., may cause wheel shaking. In addition, poor dynamic balance of tires is also a common cause, which usually needs to be adjusted by adding balance blocks.
Suspension system problems: Damage or poor function of the suspension system, such as shock absorber oil leakage, bracket deformation or aging of rubber parts, will also affect the stability of the wheel.
Bearing and hub problems: Excessive bearing clearance or hub deformation may also cause wheel shaking, which usually requires replacement or adjustment of related parts.
Four-wheel alignment problems: If the toe angle or camber angle of the wheel is incorrect, it will also cause wheel shaking, which needs to be adjusted by four-wheel alignment.
Other factors: If the steering wheel tie rod ball head is severely worn or the fixed rubber bushing is worn, it may also affect the stability of the wheel.
In short, solving the problem of wheel shaking usually requires inspection and necessary repairs of the above aspects. If you encounter such problems, it is recommended to go to a professional auto repair shop for diagnosis and repair in time.