What Causes the Abnormal Noise When Driving at Low Speed on Flat Roads?
2 Answers
Abnormal noise occurring when driving on relatively flat roads is caused by the aging of the buffer rubber on the shock absorber. The relevant details are as follows: Consequences of Rubber Aging and Hardening: The buffer rubber on the shock absorber may age and harden after prolonged use. If this happens, abnormal noise will occur. The shock absorber of a car is connected to the body with buffer rubber, which enhances ride comfort. Rubber products will age over time. When rubber ages, it hardens, leading to abnormal noise during driving. How to Address Rubber Aging and Hardening: Replacing the buffer rubber is a relatively simple solution, and the cost of buffer rubber is not high. However, after replacing the buffer rubber, it is advisable to perform a four-wheel alignment to recalibrate the wheel data. If the four-wheel alignment is not done after reinstalling the shock absorber, the car may easily experience deviation and uneven tire wear.
When I first bought my car, I also encountered a rattling sound at low speeds on flat roads, which was quite alarming. After checking myself, I found that it was often due to issues with the suspension system, such as worn-out shock absorbers or loose control arms, which amplified the sound during low-speed vibrations. Additionally, severely worn brake pads could also produce a squeaking or grinding noise when lightly braking, especially noticeable during turns. I tried shaking the wheels to check for looseness—a simple method is to jack up the car and see if there's any play in the bearings. Remember, this issue shouldn’t be ignored. A friend of mine once neglected it, leading to a broken suspension component and nearly causing an accident. Getting it checked at a repair shop early can save a lot of hassle, as driving safety should always come first.
