What Causes Loud Car Noises?
2 Answers
Loud car noises can be attributed to several reasons: 1. Engine working noise, which can be mitigated by installing sound insulation cotton to block the noise from reaching the cabin; 2. Tire noise, which is unavoidable, but can be reduced by switching to tires with better noise reduction effects if possible; 3. Wind noise while driving, caused by wind pressure exceeding the door's sealing resistance and entering the car, can be addressed by adding sealing strips or sound insulation cotton on the door frames; 4. Chassis noise, as the chassis bears the weight of the entire car and is subjected to noise interference. During driving, the chassis rubs against the air, and the transmission system works underneath the car, combined with tire noise. Applying sound insulation cotton and vibration damping plates at the bottom of the trunk can significantly improve the situation.
When my car's noise increases, I first consider several common causes. The engine is a key area - issues like aging loose belts or low engine oil can cause rattling sounds during operation, and prolonged neglect can affect the powertrain. Exhaust system problems are also frequent; leaks in the exhaust pipe or rusted perforations in the muffler allow noise to escape directly, creating significant racket. Tire condition shouldn't be overlooked either - improper inflation pressure or uneven tread wear can noticeably increase tire noise at highway speeds. Additionally, damaged suspension components like failed shock absorbers will produce clunking sounds on bumpy roads. Wind noise may also occur if weatherstripping deteriorates, creating gaps around doors/windows that produce whistling sounds. I recommend regular comprehensive maintenance to monitor sound changes and address issues promptly, preventing minor problems from escalating.
