What Causes the Squeaking Sound When Driving Over Bumpy Roads?

1 Answers
Timothy
07/30/25 5:12am
The reasons for the squeaking sound when driving over bumpy roads are: 1. Loose or excessive gap in the lower control arm ball joint, causing noise when driving over bumps; 2. Loose or excessive gap in the stabilizer bar bushings; 3. Damaged shock absorber top mount: The shock absorber top mount serves to buffer and absorb shocks. When intact, it provides a slight upward lift to the vehicle body after the tires fully land when passing over speed bumps or uneven roads, enhancing comfort. Additionally, many parts of a car have rubber components, such as wipers, tires, and chassis bushings. Over time, these rubber parts will age. Notably, the rubber bushings between the chassis components can wear out. If the rubber deteriorates, the gaps between various chassis parts will widen, leading to noise from the chassis when driving over bumps and potentially affecting the car's handling and comfort.
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