- This is often the most common cause of a screeching noise when starting or idling at stop lights.
- Brake pads are designed to wear down over time, and when they get too thin, they can start to make a screeching noise when they rub against the brake rotors.
- If you hear a screeching noise when you're braking, it's important to have your brake pads checked as soon as possible.
- Driving with worn brake pads can be dangerous, as they can reduce your stopping power and increase the risk of a brake failure.
2. Damaged Brake Rotors.
- Another possible cause of a screeching noise when starting or idling at stop lights is damaged brake rotors.
- Brake rotors can be damaged by a variety of things, such as excessive heat, wear and tear, or corrosion.
- If your brake rotors are damaged, they can cause a screeching noise when they rub against the brake pads.
- If you hear a screeching noise when you're braking, it's important to have your brake rotors inspected as soon as possible.
3. Loose or Damaged Belts.
- A loose or damaged belt can also cause a screeching noise when starting or idling at stop lights.
- Belts are used to drive various components of your engine, such as the alternator, power steering pump, and air conditioning compressor.
- If a belt is loose or damaged, it can slip and rub against the pulleys it's wrapped around, causing a screeching noise.
- If you hear a screeching noise when you're starting or idling at stop lights, it's important to have your belts inspected as soon as possible.
