What Causes the Buzzing Sound from the Chassis While Driving?
2 Answers
Below are the reasons for the buzzing sound from the chassis while driving: 1. The wheel bearing has been contaminated with impurities or water, the bearing is damaged, there is insufficient lubrication, or abnormal wear of the steel ring and ball bearings; if there is a problem, the source of the abnormal noise must be identified, and generally, this type of noise can be resolved by replacing the bearing. 2. Loose exhaust pipe hangers; aging, cracking, or broken rubber hangers, fractured hanger brackets, rusted or damaged fastening bolts, and other reasons can cause the exhaust pipe to be loosely connected, resulting in abnormal noise, including buzzing sounds. 3. Tire imbalance: affects the stability of the vehicle while driving; 4. Deformed tie rods.
Last time I drove, I also encountered a humming noise from the chassis. It happened on the highway, sounding like a continuous low hum. Later, I found out it was caused by insufficient tire pressure. Improper tire pressure can cause the tires to deform and rub against the road surface, producing a humming sound. Additionally, uneven tread wear or aging can amplify the noise. Another common cause is the wheel hub bearing. If it's worn or damaged, it will produce a humming noise when rotating, especially noticeable at high speeds, and the sound may intensify when turning. You can perform a preliminary check yourself: find a flat surface and drive slowly to listen for the source of the noise; measure whether the tire pressure is within the normal range. If not handled properly, bearing issues can worsen over time, potentially leading to the wheel locking up. Don’t wait for an accident to happen—it’s advisable to drive to a reliable auto shop and have a mechanic inspect it. Safe driving brings peace of mind.
