Where to Apply Lubricant for Brake Pedal Noise?
2 Answers
The most common cause of brake pedal noise is insufficient lubrication in the return spring of the brake pedal. Applying a small amount of lubricant to the return spring can resolve this issue. In vehicles equipped with a vacuum booster, a slight hissing or air intake sound may occur when pressing the brake pedal, which is completely normal and not a malfunction. The reasons for brake pedal noise are as follows: Hard Brake Pads: This can lead to noise during use. Severe Wear: If the brake pads are significantly worn down, almost to the point of being bare, noise may also occur. Rusted Brake Caliper: Rust in the brake caliper can cause such issues and result in noise.
I've dealt with quite a few cases of brake pedal squeaking, and I believe safety comes first. In fact, the braking system is very sensitive, and casually adding oil might cause grease to splash onto the brake cables, leading to brake failure or skidding, which could be even more dangerous. Squeaking usually comes from wear or dust accumulation on the pedal hinges, springs, or connecting rods, rather than a lack of lubrication. I recommend first cleaning the relevant parts, such as wiping off the dust near the pedal joints with a cloth. If the noise persists, don't try lubricating it yourself—it's best to take it to a professional shop for a technician to check whether parts need replacing or professional treatment. Remember, brakes are a matter of life and death—it's better to spend a little extra time ensuring everything is correct than to risk a major issue over a minor one. Developing a habit of regularly checking the movement of the brake pedal can help reduce such problems, and it's also a good opportunity to inspect the overall condition of the braking system, ensuring worry-free driving safety.
