1. Noise from the engine compartment
This is the most common type of noise in cars because the engine compartment is only one thin wall cabin away and has many interconnecting details such as steering wheel, gearbox, pedals. For electric vehicles, which do not have a mechanical engine located in the front, the noise from the front still more or less enters the cockpit.
Many car owners often use noise-proof panels on the partitions or under the hood to reduce noise from the engine. These material sheets have conical structures that help absorb sound, costing from about 500,000 VND to several million VND depending on the type.
In addition, the rubber of the engine leg after a long period of aging will make a stronger engine noise, so replacing or reinforcing the engine leg is also necessary to reduce noise.
2. Noise from car details
For old cars, it often makes a "squeeze" sound due to degraded plastic and metal details or loose screws. A common case is that the door glass is no longer tightly connected to the gas tank, causing collisions when the vehicle is on the road. Many plastic parts are warped and broken, causing the tap-lo and tap-bi doors to sound "deck" and "deck".
This is a rather complex type of noise that needs to be meticulously fixed. Vehicle owners should bring out reputable garages to check, tighten screws, replace drawn details, adjust door windows and fuller lenses...
3. Trapped sound from the chassis, shock absorbers
Some cars when driving at high speeds, cornering or traveling on rough roads often easily make a " traffic jam" sound from the ground. This is often a sign of reduced shock, braking, and damaged steering wheel. If not treated promptly, damage can spread to other parts, affecting the use, so check and replace them soon.
In addition, the leaking pipe is punctured, hollow... which is also the cause of the noise from this location. The solution is to quickly put the vehicle under closed welding or replace the new exhaust pipe.
4. Noise rises from the road
When the vehicle is running, the tire is in contact with the road surface, creating a "ferrest" sound from the ground, especially when traveling on bad roads or at high speeds. This type of noise cannot be completely eliminated, it can only be reduced by choosing soft, high-quality tires, without using "outdated" tires because the rubber is already stiff and no longer elastic.
On the other hand, the noises from the road can also be fixed by covering the car's underarms with specialized soundproofing materials. Currently, the price of the service of underground coating with specialized paint mixtures ranges from 3-4 million VND/time.
5. capture audio from the external environment
Some cars are also "impregned" by wind, rain, and traffic jams. This recorder passes through the case, doors, and rear trunk. Many car owners choose to apply noise-proof patches to doors, ceilings, floors ( costing VND2.5 million) or apply rubber gasoline to increase tightness, reducing dirt entry.
However, the noise-proof panels can retain water, so if not properly applied, the humid air will get inside the door and the floor, easily causing rust and rust.
