What Causes the Clunking Sound from the Chassis When Driving Over Bumpy Roads?
2 Answers
The reasons for the clunking sound from the chassis when driving over bumpy roads are as follows: 1. Disc Brake Noise: When the vehicle is driven at low speeds on flat roads, an intermittent and irregular "clunking" sound is emitted from the wheel axle area. This is caused by damage, deformation, or detachment of the brake shoe support plate, vibration damping spring plate, or guide plate of the disc brake, which increases the gaps between the brake shoe and the brake caliper support frame, leading to mutual collisions and noise. The deformed parts can be repaired at a service station, and detached parts should be replaced. 2. Front Suspension Ball Joint Noise: When the vehicle is driven in low gear on uneven roads, a continuous "clicking" sound is emitted from the front axle area. Since the ball joint seat is a sealed structure and cannot be disassembled, the only solution in this case is to replace it at a service station.
I had a similar issue with this car before, where the chassis made loud clunking noises when going over bumps. The main reason was a problem with the suspension system, such as the shock absorber oil leaking out or the springs becoming too weak. Over time, rubber bushings and mounts can also age and crack, causing components to loosen and collide when going over bumps. The noise isn't just annoying—it also indicates that parts are under excessive stress. If left unchecked, the suspension can deform, affecting cornering stability and increasing the risk of a tire blowout. At the time, I did a quick check myself and noticed obvious wheel play when shaking the tires by hand, so I immediately went to the repair shop to replace the faulty parts. When driving, it's best to go over bumps gently rather than charging through them. During regular maintenance, have someone check for signs of wear in the suspension—fixing it early saves trouble later.
