What Causes the Steering Wheel to Shake When Driving Fast?

[RubyDella]

The reasons for the steering wheel shaking when driving fast are as follows: 1. Unstable Tires: Under different circumstances, the causes of car shaking vary. If the car feels very shaky during high-speed driving, especially noticeable on the floor and seats, it is likely due to uneven tire force or unstable tires. In this case, tire balancing is necessary. 2. Warped Brake Discs: If the car shakes noticeably during braking, such as unstable steering wheel or shaking brake pedals, it may be due to warped brake discs. Warped brake discs increase friction on the brake pads or result in insufficient brake lubrication, making braking feel laborious and accompanied by car shaking. 3. Suspension Issues: Car shaking may be closely related to the suspension. The suspension is a critical component for maintaining car stability, transmitting forces between the wheels and the frame to mitigate ground impact. The stiffness of the car's suspension directly affects its stability. Generally, overly soft suspension weakens the car's stability, while only sufficiently stiff suspension can effectively maintain the car's safety performance.