Why does the car shake during emergency braking?
4 Answers
Shaking during emergency braking is caused by uneven wear of the brake discs. The solution to brake vibration is to replace the brake discs. For manual transmission vehicles, slight vibrations in both the brake pedal and clutch pedal are normal when the vehicle is operating at low gear with high torque. For automatic transmission vehicles, pedal vibration is also normal when stopped in D gear with the brake pedal pressed at a red light; shifting to N or P gear will significantly reduce this sensation. Uneven tread wear on both sides of the tires, different tire pressures, or deformed brake discs can also cause brake pedal vibration, especially during emergency braking. In such cases, it is generally recommended to replace the brake discs.
When I encountered sudden braking and the car shook, it was quite frightening. This is usually because the anti-lock braking system (ABS) is working, rapidly activating the pump during hard braking to prevent wheel lock-up, so you feel the shaking or vibration. It's a normal protective mechanism designed to increase stopping distance and safety, especially on slippery roads. However, if the shaking is particularly severe or there are unusual noises during braking, it might not be an ABS issue—perhaps the brake discs have become uneven. I've dealt with similar cases before—brake discs can warp over time, causing uneven friction and shaking during hard braking. Additionally, tire wear or balance issues could also be the culprit, such as a tire leak or an out-of-round wheel hub. Don’t delay; get it checked at a shop immediately—safety first. Otherwise, sudden braking at high speeds could lead to loss of control. Regular brake system maintenance can prevent such issues. I always make it a habit to have a technician inspect the brake pads and discs every six months to ensure a smooth and safe drive.
Let me share my experience with sudden braking vibrations – it's usually a sign of brake disc issues. If you feel intense steering wheel or body shaking during braking, as if the wheels are stuck, it's likely due to scratches or uneven surfaces on the brake discs. I've encountered this myself, caused by frequent hard braking or rust buildup from rainwater, leading to uneven disc contact over time. It could also be uneven brake pad wear, contamination from oil, or thinning due to aging causing unstable friction. This problem isn't just uncomfortable – it increases stopping distance and accident risks. I recommend first checking tire and wheel balance – sometimes small stones lodged in treads or bent rims amplify vibrations. Best to replace worn components and avoid aggressive braking; using progressive braking helps preserve discs. Remember, never compromise on safety – address issues immediately before they affect control.
When I brake hard, the car shakes, and I always feel nervous. This situation is mostly the vehicle's protection system in action, such as the ABS anti-lock function, which automatically pumps to prevent wheel lock-up during hard braking, creating a vibration sensation, actually to stabilize the car. However, if the shaking is too severe and accompanied by abnormal noises, it's not normal—it could be due to overly thin brake pads or tire issues. I've experienced it before; low tire pressure worsened the shaking sensation. I immediately went for a check-up—safety first. If the suspension shock absorbers are damaged, it can be very dangerous as it affects balance. Usually, pay attention to the road while driving, reduce the frequency of hard braking, and regular checks can save trouble. Simply put, keep the steering steady and don't panic, get it fixed early to ensure safety.
