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What Causes Suspension Noise?

2 Answers

Isla

07/29/25 4:06am

The causes of shock absorber noise include the following: 1. Oil leakage or bending: Noise caused by the shock absorber itself leaking oil or bending. In this case, simply replacing the shock absorber with a new one can solve the problem; 2. Aging or wear: Abnormal aging or wear of the shock absorber pressure bearing. This issue can be resolved by directly replacing or lubricating the bearing; 3. Spring deformation: The noise might be due to deformation of the shock absorber spring. Replacing the spring with a new one can fix this; 4. Wheel bearing: The noise could also be coming from the wheel bearing, which would require replacing the wheel bearing.

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LaPenelope

08/12/25 7:51am

I've driven several cars, and the issue of suspension noise is actually quite common. Last time, my old car made a creaking sound when going over speed bumps, and upon inspection, it turned out to be the shock absorber oil seal aging and leaking. If the fluid inside the shock absorber leaks, the lubrication effect deteriorates, causing friction and noise. Additionally, if the shock absorber springs become loose or the bushings wear out, they can also produce squeaking sounds. These components are most prone to issues on bumpy roads and age faster over time. It's advisable to first check for oil stains or cracks on the shock absorber housing and simply shake the car body to listen for the noise location. Safety comes first—such problems are not only annoying but can also accelerate the wear of other suspension components. It's best to visit a professional repair shop for a comprehensive check-up early on, rather than waiting until high-speed driving becomes unstable and dangerous.

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