What Causes the Abnormal Noise When Going Over Potholes?
1 Answers
Abnormal noises when going over potholes can be caused by body noise, engine compartment noise, tire noise, etc. Body noise usually occurs due to insufficient body stiffness, causing deformation of the vehicle while driving, resulting in friction or shaking between the doors and the frame, or friction between steel plates due to some areas being poorly welded. Body Noise: Applying adhesive strips on the doors and windows or placing rubber pads in friction-prone areas can reduce or eliminate the noise, but these are temporary fixes. Some vehicles have higher wind noise, which is related to their design. If no extra items have been added, owners should not attempt to fix it themselves. Additionally, loose fastening of body components can also cause noise, which can usually be resolved by tightening the screws. Engine Compartment Noise: Some sounds from engine vibrations are normal, but certain unusual noises may indicate potential faults. For example, a sharp belt squealing noise is usually caused by belt slippage; a high-pitched metallic sound while the engine is running is often due to damaged bearings in the generator, water pump, or power steering pump; a hissing sound from the engine may indicate a blocked exhaust system or a leaking/broken vacuum hose. If abnormal noises originate from within the engine, they generally indicate serious issues, and the vehicle should be sent for professional inspection as soon as possible. Tire Noise: Tire noise is rhythmic, and its frequency increases with speed. A dull "thudding" sound is often caused by tread deformation, bulging, severe wear, or insufficient tire pressure; a "ticking" sound usually means small stones are stuck in the tread. If the tire makes a roaring noise accompanied by noticeable body vibration or steering pull, it’s undoubtedly a tire blowout—pull over and change the tire immediately.
