Periodic sound - Brakes ? ( Elantra 2003)

Potential Causes:

1. Brake Pads: Worn-out brake pads can produce a periodic squealing or grinding noise. This is because the brake pad material is rubbing against the rotor, causing vibration.

2. Brake Rotors: Warped or uneven brake rotors can also create a periodic sound. When the rotor is warped, the brake pads will make contact with it unevenly, leading to a pulsating noise.

3. Brake Caliper: A damaged or loose brake caliper can cause the brake pads to rattle against the rotor. This can produce a periodic clicking or clunking sound.

Diagnosis:

- Visual Inspection: Check the condition of the brake pads and brake rotors. If the brake pads are worn down to the metal backing, or the brake rotors are warped, they should be replaced.

- Test Drive: Take the vehicle for a test drive and pay attention to the noise. Try to identify the specific conditions (e.g. braking, turning) under which the noise occurs.

- Mechanic Inspection: If you are not comfortable inspecting the brakes yourself, have a qualified mechanic take a look. They will be able to pinpoint the exact cause of the sound.

Repair:

The repair will depend on the specific cause of the sound. Common solutions include:

- Replacing worn-out brake pads

- Replacing warped or damaged brake rotors

- Adjusting or replacing the brake caliper

Prevention:

Regular brake inspections are the best way to prevent periodic sound. This will allow you to catch any potential problems before they become more serious and expensive to fix.