What Causes the Buzzing Noise at 60-80 km/h in a Car?
2 Answers
The buzzing noise at 60-80 km/h in a car may be caused by: 1. Excessive tire pressure causing abnormal noise: During daily use, tire pressure should be adjusted within the standard range. If the tire pressure is too high, it will reduce the tire's shock absorption and buffering performance, significantly increasing tire noise; 2. Abnormal tire wear causing noise: The tread of the tire contacts and rubs against the ground. If the tread wears unevenly with bumps, it will produce a buzzing sound; 3. Damaged wheel hub bearings causing noise: Worn wheel hub bearings will generate a buzzing sound, mainly due to long-term use leading to wear and looseness. To protect the wheel hub bearings, avoid violent impacts on the wheels and prolonged driving through water during daily use.
I've been driving the family car for several years, and the most annoying thing is the constant buzzing noise whenever the speed hits between 60 to 80 km/h. This sound usually comes from the chassis or wheel area, and the most common causes are unbalanced tires or uneven tire wear. When tires rotate at high speeds unevenly, they produce this low, humming noise, especially noticeable in this speed range. If the tires are aged or the tire pressure is unstable, it can worsen the phenomenon. If not addressed promptly, the tires will wear out quickly, fuel consumption will spike, and you'll end up spending more money unnecessarily. Additionally, if the wheel bearings are worn, they can also produce noise at specific speed intervals. I recommend first visually inspecting the tires for uneven wear or air leaks. If you can't fix it yourself, take it to a professional repair shop for a check-up. Safety comes first—if there's a sudden issue, it could be dangerous.
