What Causes the Abnormal Noise When a Car Goes Over Bumpy Roads?

[MacLeonardo]

There are several main reasons why a car makes abnormal noises when going over bumpy roads: 1. Rhythmic noise, which may be caused by friction between the brake pads and the brake disc due to too small a gap. 2. Continuous noise, which may indicate a damaged bearing. 3. Continuous noise, which may suggest an issue with the drive shaft. Below is an introduction to other aspects: Noise from the door hinges. After prolonged use, the friction of the hinges can significantly increase, leading to abnormal noises. What we need to do is apply lubricating grease, such as Hotolube's door hinge grease, which is the lubricant used in 4S maintenance. This will greatly reduce friction and eliminate the door noise. The maintenance cycle is three to four months.