What Causes Shock Absorber Noise?
2 Answers
The causes of shock absorber noise include shock absorber oil leakage and aging of the top mount thrust bearing. Below are the specific reasons for shock absorber noise: Shock absorber oil leakage: When a shock absorber leaks oil, the interior of the shock tube cannot be effectively lubricated, resulting in significant friction noise during operation. Aging of the top mount thrust bearing: The thrust bearing is located in the engine compartment. Open the hood and press down on the vehicle body to listen if the noise is coming from the shock absorber top mount. If so, it is likely due to aging of the thrust bearing. If the shock absorber spring is deformed or broken, the only solution is to replace the entire shock absorber spring.
I've driven quite a few cars, and every time the shock absorber makes strange noises, I have to investigate. The most common reasons are internal oil leakage or aging. When you drive over bumpy roads, you'll hear gurgling or clicking sounds, as if the chassis is protesting. Sometimes it's due to a damaged dust cover, allowing dust and stones to get in and scratch the components, causing the noise. Other times, it's because the mounting screws are loose and not tightened properly, causing metal clanging sounds when driving over bumps. The last time I encountered this issue, I found out it was caused by the entire suspension system aging. Delaying repairs can affect driving stability and even cause skidding when turning. It's best to visit a repair shop early, spend a little money to replace the shock absorbers, and your drive will be much smoother.
