What Causes the Squeaking Noise When Driving Over Speed Bumps?

[Polly]

The reasons for the squeaking noise when driving over speed bumps are: 1. Aging of the balance rod suspension ball joint; 2. Excessive clearance in the steering gear tie rod ball joint; 3. Damage to the cushioning components on the chassis. Speed bumps, also known as speed humps, are traffic facilities installed on roads to slow down passing vehicles. Speed bumps are typically strip-shaped, though some are dotted, and are made of rubber or metal, often painted in alternating yellow and black for visual attention. They slightly raise the road surface to reduce vehicle speed and are usually installed at road intersections, industrial and mining areas, schools, residential entrances, and other locations requiring reduced vehicle speed or prone to traffic accidents. They serve as specialized safety installations to slow down both motorized and non-motorized vehicles.