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What Causes the Abnormal Noise When a Car Goes Over Speed Bumps?

1 Answers

Kendra

07/30/25 6:54am

The causes of abnormal noise when a car goes over speed bumps include: aging of the stabilizer bar link ball joint, excessive clearance of the steering gear tie rod ball joint, and damage to the cushioning components on the chassis. Below are the detailed explanations: 1. Aging of the stabilizer bar link ball joint: After prolonged use, the stabilizer bar link ball joint may age, leading to abnormal noise when passing over speed bumps. If abnormal noise is noticed while driving over speed bumps, check whether the stabilizer bar link ball joint shows signs of aging and address it promptly if aging is detected. 2. Excessive clearance of the steering gear tie rod ball joint: Excessive clearance of the steering gear tie rod ball joint can also cause abnormal noise when the car goes over speed bumps. To check, lift the vehicle and shake the wheels forcefully from side to side to see if there is 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 noise when passing over speed bumps. This may be caused by abnormalities in the rubber cushioning blocks on the stabilizer bar, which is also a significant reason for abnormal noise when the vehicle goes over speed bumps.

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