What Causes the Clunking Sound from the Front Wheels When Going Over Speed Bumps?

[DelAubree]

The clunking sound from the front wheels when going over speed bumps is caused by a loose stabilizer bar or faulty shock absorbers. When a car goes over a speed bump, it involves the compression movement of the wheels (including the suspension) between the ground and the car body. Noise from the shock absorbers themselves is rare and usually only occurs when they are malfunctioning. It is recommended that owners promptly inspect and repair the vehicle when such noises appear. Shock absorbers can be categorized based on the damping material used, mainly into hydraulic and pneumatic types, with another type being variable-damping shock absorbers. The primary function of shock absorbers is to suppress the oscillations from the rebound of springs after absorbing shocks and the impacts from the road surface. When driving on uneven roads, although the shock-absorbing springs can filter out road vibrations, the springs themselves still undergo reciprocating motion, and the shock absorbers are designed to control this spring bounce.