What is the standard decibel level for vehicle noise?
1 Answers
Vehicle noise standards are below 60 decibels. Noise refers to the sound emitted by road and rail vehicles during operation. The reasons for excessive car noise include: 1. Engine carbon buildup; 2. Shock absorber failure; 3. Large gaps in the cab or vehicle body; 4. Tire aging; 5. Internal damage to valve guides; 6. Cooling system failure; 7. Poor oil quality; 8. Engine misfire; 9. Spark plug carbon buildup. Solutions for excessive car noise are: 1. Install sound-absorbing foam material on the engine hood to suppress vibrations and absorb significant noise; 2. Use damping plates with sound-absorbing pads to address road and tire noise; 3. Install or replace door seals; 4. Tighten screws or replace components.