- Incorrect Installation: If brake pads are not installed correctly, they can rub against the rotor and produce a grinding sound. It's always crucial to ensure correct installation, especially for first-timers.
- Dust Shield or Pad Clip Issues: Components like dust shields or pad clips rubbing against the rotor can create grinding noises. Proper alignment and fitting of these parts are essential.
- Rotor Surface Condition: Sometimes, the rotors may have an anti-rust coating or uneven wear, which can cause noise until the surface becomes smooth with the new pads.
- Caliper Issues: Sticking calipers can also lead to grinding noises, as they may prevent the pads from releasing fully from the rotor.
- Pulsating Noise: A pulsating grinding noise, like the one you described, is often related to uneven pressure on the rotor, possibly due to misalignment or issues with the brake components.
- Importance of Bedding-In New Brakes: When installing new pads (and rotors, if applicable), it's important to properly bed them in. This process involves a series of controlled braking to evenly distribute the pad material onto the rotor, ensuring smooth operation.
- Checking Other Components: It's also wise to inspect caliper slide pins, rotor condition, and ensure the wheels are torqued evenly in a star pattern to avoid uneven pressure.
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