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Is It Normal to Hear a Sloshing Sound in the Fuel Tank?

1 Answers

McIker

07/29/25 5:27pm

Hearing a sloshing sound in the fuel tank is a normal phenomenon, but it depends on the vehicle model. The sloshing sound occurs because the fuel tank was designed without baffles inside. Normally, fuel tanks are equipped with baffles to prevent fuel from sloshing during driving. Here are the details: Causes: The noise is generated when fuel sloshes inside the tank and collides with the tank shell or other internal components, causing vibrations. Noise can also be heard during braking due to the inertia of the fuel hitting the tank. Solutions: The first method is to reduce the noise source by adding baffles inside the fuel tank. However, this may waste tank volume and reduce fuel capacity, so it is generally recommended only for tanks with sufficient space. The second method is to optimize the transmission path by improving the fuel tank's vibration-damping pads to reduce tank vibrations. Since the tank surface is made of steel, compressing rubber pads can help dampen vibrations and lower noise. It is recommended that automakers pay more attention to fuel tank structure in future product development.

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