What are the reasons for increased driving noise?
2 Answers
The reasons for increased driving noise are: 1. The engine mounts have been damaged or aged after prolonged use, losing their vibration damping function; 2. Insufficient or aged/thickened engine oil fails to provide proper lubrication; 3. Aging sealing strips lose their sound insulation effect; 4. Carbon buildup from prolonged engine operation. Engines can refer to either power generation devices or complete machines including power units (such as gasoline engines, aircraft engines). Types include internal combustion engines (gasoline engines, etc.), external combustion engines (Stirling engines, steam engines, etc.), gas turbines (racing cars), and electric motors.
Increased noise while driving can be really annoying. Having driven for over ten years, I've experienced this situation several times. The most likely causes are tire-related issues - incorrect tire pressure or severe wear can increase road noise; worn wheel hub bearings produce noticeable humming; loose exhaust pipe connections result in puffing air leaks; and loose engine belts or abnormal fan operation generate high-frequency noises. Additionally, cracked rubber bushings in the suspension system amplify vibrations and noise when going over speed bumps. These noises can cause driver fatigue during prolonged driving and affect concentration. I recommend first visiting a shop to check tire pressure and inspect chassis components - don't wait until problems arise to make repairs.
