What is the reason for the buzzing noise when the Changan Eado is running?
2 Answers
About the reasons for the buzzing noise when the Changan Eado is running: Lack of power steering fluid or issues with the power steering pump: Check if the power steering hose is clogged. If metal shavings are found in the power steering fluid, components of the power steering system need to be replaced. After checking for oil leaks in the hose, if leaks are found, they should be replaced promptly. After replacing the leaking hose and refilling the power steering fluid, if the power steering pump no longer buzzes, it indicates a lack of power steering fluid. Other reasons for the buzzing noise when the Changan Eado is running: Air in the hydraulic system not fully purged or deformation of the high-pressure hose of the power steering pump. Note that whether the power steering pump is damaged or the hose is leaking, after replacing with new parts, all the old fluid should be drained, and Honda's original power steering fluid must be used, as Honda power steering pumps have high requirements for fluid quality.
The buzzing noise while driving a Changan Eado is indeed annoying, and it's most likely related to the wheels. Uneven tire wear or bulges are common culprits, especially when the inner edges of the front tires are scalloped, creating a low-frequency vibration that sounds like an airplane taking off. Overinflated tires become too rigid, amplifying noise on bumpy roads. A faulty wheel hub bearing is even more troublesome—the buzzing gets louder at higher speeds and quieter when slowing down. If it's a driveshaft issue, the buzzing becomes more pronounced during acceleration and may intensify when turning the steering wheel to full lock. A colleague's car had this problem last time—the bearing was damaged for a month without anyone noticing until the steering wheel started shaking. Upon inspection, the ball bearings inside were completely shattered. Any later, and the wheel could have flown off.
