What Causes the Squeaking Sound When Braking and Turning the Steering Wheel?
1 Answers
If there is a slight squeaking sound at the pedal position when lightly pressing the brake while the vehicle is stationary, it is mostly due to the return spring of the brake light switch on the brake pedal. If there is a noticeable squeaking sound when braking at low speeds, it could be coming from the brake disc area. Many new cars or those with recently replaced brake pads often experience such braking noise issues while driving. Below is more related information: Common issues with braking noise (outside the vehicle) while driving: 1. New cars or those with recently replaced brake pads may repeatedly produce sharp squealing sounds during braking. This is usually because the brake disc surface becomes mirror-smooth after use. When the brake pad surface rubs against this mirror-smooth brake disc, a hardened layer forms. Friction between this hardened layer and the smooth brake disc tends to produce squealing sounds. Simply grinding the brake pad to remove the hardened layer may temporarily stop the noise, but since the brake disc remains smooth, the hardened layer will quickly reform, causing the noise to return. 2. To effectively resolve this issue, you can use a specialized lathe to polish the brake disc or grind it with emery cloth or a grinding wheel. Alternatively, you can create X-shaped grooves on the brake pad or use specially designed perforated brake discs. The latter two methods are more effective but may reduce the lifespan of the brake pad. If the brake disc is deformed and wobbles left and right while driving, grinding against the brake pad and producing noise, you can repair the out-of-roundness by resurfacing the brake disc. Another common issue is rust on the brake disc surface. The noise produced when the brake pad scrapes off the rust spots usually disappears after a few minutes of driving or after a couple of high-speed emergency brakes, as the rust spots are worn away during braking.
