What Causes the Abnormal Noise When Braking Hard to the Bottom?
2 Answers
Abnormal noise when braking hard to the bottom may be caused by uneven wear of the brake disc, brake pads worn to the limit, or foreign objects between the brake disc and brake pads. Uneven wear of the brake disc: Due to uneven wear thickness of the brake disc, the outer side of the brake disc may be thicker than the inner side or vice versa. When measuring, if the radial runout exceeds the standard value, it will cause abnormal noise during braking, especially when the brake is pressed to the bottom. The force applied to the brake disc and brake pads is strong enough, making the clunking noise more obvious. Brake pads worn to the limit: Generally, brake pads are equipped with wear sensors. If the pads are worn to the limit, a warning will appear on the vehicle's display, indicating that they should be replaced promptly. Continuing to drive will cause friction with the metal at the bottom of the brake pads, producing abnormal noise. In severe cases, it may lead to insufficient braking force or even brake failure.
When it comes to hearing strange noises during hard braking, I must say as a driver with years of experience, I've encountered this several times. The most common cause is brake pads that are too thin or have hard spots grinding against the brake discs, producing a sharp screeching sound—especially during hard braking when pressure increases, making the noise more noticeable. Additionally, if the brake discs are warped or rusted, they can also create squeaking sounds when rubbing. I recommend promptly inspecting the brake system and not ignoring any unusual noises, as they may conceal safety hazards. Regular maintenance is key; visiting a professional shop to replace brake pads or resurface the discs usually solves the problem. Don't skimp on these costs—safety is priceless. Develop the habit of anticipating road conditions while driving to minimize hard braking, which not only extends component lifespan but also reduces noise issues.
