What Causes Strong Bumpy Sensation in Cars?

[MacMarcus]

Experiencing a bumpy sensation when driving on smooth roads indicates potential issues with the vehicle's chassis system components. The most likely culprits are the suspension system and tires. In the suspension system, there is a component called the shock absorber, also known as the hydraulic damper. The suspension system primarily relies on springs to absorb bumps, while the shock absorber's role is to reduce the number of repeated extensions when the spring absorbs vibrations, significantly improving the vehicle's stability. Below is more detailed information: Faults caused by tires: It could be due to poor tire balance, requiring the owner to promptly perform a four-wheel alignment and dynamic balance. If the vehicle doesn't pull to one side, a dynamic tire balance may suffice. Caused by wheel rim deformation: Generally, when replacing new tires or wheel rims, a tire balance should be performed. Otherwise, uneven weight distribution can easily cause the steering wheel to shake. Body vibrations can affect both driving comfort and handling judgment.