What Causes the Abnormal Noise When a Car Bumps?
2 Answers
Most of the abnormal noises when a car bumps are due to the aging and hardening of the shock absorber top rubber. There is rubber at the connection point between the vehicle's shock absorber and the body, known as the shock absorber top rubber. The function of this rubber is to provide cushioning for the body and reduce vibrations. Over time, the rubber ages, and aged rubber hardens, causing abnormal noises from the body when driving over bumpy roads. Additional information is as follows: Antifreeze Usage Tips: Antifreeze is best used year-round. In addition to its antifreeze and cooling functions, antifreeze also has cleaning, rust removal, and anti-corrosion effects, reducing corrosion in the radiator and protecting the engine. Pay attention to selecting the correct color of antifreeze and avoid mixing different types. Brake Fluid Usage Tips: The functionality of the braking system is closely related to the brake fluid. When inspecting or replacing brake pads, brake discs, and other hardware, don't forget to check if the brake fluid needs to be topped up or replaced.
Whenever my car makes noises on bumpy roads, I know there might be an issue with the chassis. Common causes include faulty suspension components: for example, leaking shock absorbers or aging springs that creak when going over bumps; loose stabilizer bar link bolts that produce metallic clunking sounds when the car bounces; and worn control arm bushings that squeak on uneven roads. Worn wheel bearings can also cause sharp noises. I recommend stopping immediately for a quick check: first, inspect if the exhaust hangers are loose, then gently shake the car body to listen for the source of the noise. Don't ignore it—if a component fails completely, it can lead to unstable handling, which is especially dangerous at high speeds. Visit a professional repair shop as soon as possible for a thorough inspection, and routinely check these areas during maintenance to prevent failures. Safety comes first—unusual noises are warning signals.
