What are the causes of brake noise in the Envision?
2 Answers
ABS abnormal operation: The normal activation of ABS The working process of ABS is actually a cyclic process of locking-releasing-locking-releasing, keeping the vehicle in a state of critical locking with intermittent rolling. When the ABS is triggered by sudden hard braking, a clunking sound will occur. This noise is normal, and at this time, simply press the brake pedal firmly to the floor. Brake pad/disc corrosion: Brake pad/disc rust After prolonged parking, especially in humid climates or after rain, some rust or dirt may appear on the brake discs or pads. This can usually be resolved by driving for a while, or you can apply butter or specialized lubricating oil to the connection between the brake pads and the brake calipers. Improper installation: Installation issues If the brake pads are installed incorrectly or the model does not match, noise may also occur. You can have the brake pads reinstalled. When installing brake pads, car owners should go to a professional auto repair shop for the job.
As someone who frequently repairs cars, I often encounter brake noise issues. There are quite a few reasons why a car like the Envision might have noisy brakes: first, the brake pads may be worn to their limit, and when they become too thin, they can produce a sharp metal-on-metal grinding sound; second, the brake disc surface may be uneven or warped, causing uneven friction; third, the caliper may be stuck or lack lubrication, leading to parts seizing and making noise. Dust or rainwater entering the brake system can also temporarily cause noise, especially after washing the car. It's important to address these issues promptly—for example, by measuring the thickness of the brake pads, which should be replaced if they are below 3mm. Additionally, the flatness of the brake discs should be checked. Ignoring these problems can affect braking performance, increase stopping distances, and make driving in the rain even more dangerous. During regular maintenance, always have a mechanic inspect the brakes—prevention is cheaper and safer than repairs.
