What Causes the Abnormal Noise When Releasing the Brake?

[OBrody]

Here are the reasons for abnormal noise when releasing the brake: 1. Brake system lock-up: The brake is released too slowly, causing the wheel to be held by the brake system. 2. Rust adhesion: The brake pads and brake disc are stuck together due to rust. 3. Metal particles: There are metal particles on the surface of the brake pads. Here are some extended solutions for abnormal noise when releasing the brake: 1. Quick release: Release the brake quickly. 2. Lubrication: Apply butter or lubricant at the connection between the brake pads and brake caliper. 3. Replace brake pads: To avoid scratching the brake disc. Braking, also known as stopping, refers to the action of stopping or reducing the speed of a running locomotive, vehicle, or other transportation tools or machinery.

[Cox]

Oh, back when I drove an old car, I often encountered squeaking sounds when releasing the brakes, especially after rainy days when it was damp—the noise was particularly harsh. Later, I realized it was mostly due to dust or small stones stuck on the brake pads, causing friction when released. It could also be caused by rust or unevenness on the brake disc surface. If the noise is loud or frequent, it's important to check if the brake pads have enough thickness or if the calipers are stuck. Safety in the braking system comes first—don’t delay too long. When I wash my car, I use a high-pressure water spray to rinse the brake area, which provides temporary relief, but for a permanent fix, it’s best to visit a repair shop for inspection to avoid potential hazards. Remember, timely action saves trouble and effort.

[SanJake]

I've seen this issue of squeaking when releasing the brakes many times during car repairs. It's usually caused by dirt on the brake discs or pads creating friction noise. If the brake pads are severely worn with metal parts exposed, they'll also squeak. When the caliper pistons get stuck and don't move smoothly upon brake release, that can cause noise too. Significant weather changes with high humidity can accelerate rusting and worsen the problem. My suggestion is to first check the brake discs yourself for obvious scratches. If that doesn't help, have a technician inspect the brake system - replace what needs replacing and maintain what needs maintenance. Don't wait until the noise turns into vibration or brake failure. Safe driving shouldn't be taken lightly - it's better to be professional and thorough about it.

[RobertLee]

The brake squeaks when released, possibly due to sand particles on the brake pads or rust on the rotor, which is more noticeable in high humidity. Once after driving in the rain, I heard a squeak when releasing the brake, and later learned it was due to moisture—it went away after drying. If the noise persists, check if the brake pads are worn thin or if the calipers need lubrication. You can try driving a short distance and lightly applying the brakes a few times to clear dust, but don’t ignore it, as it affects driving comfort and safety.