What Causes the Squeaking Sound When Going Over Speed Bumps?

[BrantleyDella]

There are several main reasons why a car makes a squeaking sound when going over speed bumps: 1. Aging of the stabilizer bar link ball joint: After prolonged use, the stabilizer bar link ball joint may age, causing a squeaking sound when passing over speed bumps. If you notice abnormal noises when driving over speed bumps, check if the stabilizer bar link ball joint has aged and replace it promptly if necessary. 2. Excessive clearance in the steering tie rod ball joint: Excessive clearance in the steering tie rod ball joint can also cause a squeaking sound when going over speed bumps. You can lift the vehicle and shake the wheels forcefully from side to side to check for abnormal clearance. A properly functioning tie rod ball joint should not move. 3. Damage to the cushioning components on the chassis: Damage to the cushioning components on the chassis can result in abnormal noises when passing over speed bumps. This may be caused by issues with the rubber cushioning blocks on the stabilizer bar, which is another common reason for vehicle noise when going over speed bumps.

[OCarmen]

I often encounter this issue when driving an old car: it creaks and squeaks over speed bumps, as if something is rubbing. This is mainly related to the suspension system, such as aging or cracked rubber bushings in the shock absorbers. Because speed bumps create strong vibrations, the gaps in old components widen, causing metal parts to rub against each other and produce noise. Another possibility is loose connection points in the control arm. I ignored it once before, and the result was instability when turning, with the car feeling wobbly. The inspection method is simple: park on a flat road, get out, and kick the tire—if it makes a clunking sound, it indicates a suspension issue. But for safety, it's best to go directly to a repair shop and have the car lifted to inspect the chassis components. Don’t delay small problems, or the noise will only get worse, and wet, slippery roads in rainy weather increase the risk of losing control. New cars rarely have this issue, but old car owners understand this frustration. Regular suspension maintenance is key, especially after the vehicle has been used for several years.

[OAna]

My car always creaks when going over speed bumps, and it used to give me a headache. The reason is mostly due to suspension problems, such as corroded spring seats or worn shock absorber rods. When those rubber parts deteriorate, metal hitting metal makes a loud noise. It could also be loose chassis screws, like an unfixed exhaust pipe bracket. I remember my car was annoyingly noisy, and later I found out it was a loose ball joint. This isn't too serious, but don't ignore it: if left unrepaired, parts will wear out more severely, making the ride bumpier and harder to control when turning. If you're handy, you can try moving the wheels up and down to listen for the source of the noise. To prevent it, slow down when going over speed bumps to reduce impact. This is a common issue with older cars, and regularly replacing small suspension parts can save a lot of trouble.

[ChristianLynn]

A squeaking sound when going over speed bumps is usually caused by worn suspension components. For example, cracked shock absorber bushings or loose stabilizer bar links. When these rubber parts age, they lose their cushioning effect, causing friction noises during vibrations. Another common issue is loose chassis bolts. The solution is to have a professional shop inspect and replace the damaged parts. Don't ignore it, as it can worsen the damage and affect driving stability. Simply put, the sooner you fix it, the less trouble you'll have.