What Causes the Noise After Replacing Brake Pads?
2 Answers
The reasons for noise after installing new brake pads are as follows: 1. Severe brake pad wear: This occurs when the brake pads reach the warning line or are completely worn out. The noise is mostly a metallic scraping sound and is quite sharp. If accompanied by reduced braking effectiveness, this is likely the cause. 2. Noise caused by brake pad material: Harder brake pad materials are more prone to causing such noises, while softer materials produce sharper sounds. If combined with decreased braking performance, this is probably the reason. 3. Improper installation of the brake system causing noise. This is more complex and it is recommended to have it checked at a repair shop. 4. The brake system is a safety-critical system, essential for life preservation. Any abnormalities should be promptly diagnosed by professionals as the best course of action.
When I encounter new car enthusiasts mentioning strange noises after changing brake pads, it's actually quite common. Firstly, the surface of new brake pads may retain small particles or unevenness from the factory, requiring a break-in period after installation – usually driving 300-500 kilometers will eliminate the noise. If the sound persists, it's likely due to installation oversights, such as calipers not being properly reset or loose spring clips causing uneven friction. I've also seen cases where repair shops skipped resurfacing brake rotors to save time, resulting in squealing when braking. My advice is to drive for a few more days to observe. If the noise doesn't diminish, promptly return to the shop for a full system check to ensure the rotors aren't warped or contaminated. Remember, safety comes first – prolonged neglect may shorten pad lifespan or even affect braking performance.
