What are the causes of shock absorber noise?
2 Answers
Shock absorber noise can be caused by: oil leakage or bending of the shock absorber itself, abnormal aging or wear of the shock pressure bearing, deformation of the shock spring, damage to the balance rod rubber sleeve, gaps in the connecting ball joint, etc. It is recommended that the owner promptly go to a repair point for inspection. Below is an introduction to related content: Shock absorber reset: Due to the structure of the vehicle's shock absorber, the entire shock absorber is compressed when the vehicle passes over bumpy roads, thereby compressing the external spring. However, after the vehicle passes over the bumpy section, the spring's elasticity will reset the shock absorber. During the compression and resetting process of the shock absorber, there may be accompanying hissing or puffing sounds, which are normal phenomena.
I've been driving for over a decade and have encountered shock absorber noises several times, with the most common causes being aging and oil leakage. After prolonged use, the internal rubber components of shock absorbers harden and crack, producing squeaking sounds when going over bumps; oil leakage leads to insufficient hydraulic pressure, increasing piston movement friction, resulting in metallic knocking sounds. External factors like humidity during rainy seasons or continuous impacts from rough roads accelerate wear. I remember once when the noise became louder after speeding over a speed bump, which was due to unbalanced suspension exacerbating the issue. Addressing the problem promptly upon discovery is crucial—a professional repair shop can determine whether replacement or tightening is needed. Otherwise, prolonged neglect can worsen handling, increasing the risk of body sway during turns. Regular maintenance, such as checking the suspension system every 20,000 kilometers, can prevent sudden failures.
