Final answer:
Brake squeaking noise can be caused by worn brake pads, loose brake calipers, and lack of lubrication.
Step-by-step explanation:
A squeaking noise when the brakes are applied can be caused by a few factors.
- Worn brake pads: Over time, brake pads can wear down and become thin, causing them to squeak when they come into contact with the rotors.
- Loose brake calipers: If the brake calipers are not securely fastened, they can move and create a squeaking sound.
- Lack of lubrication: If the brake components are not properly lubricated, friction can occur, resulting in a squeaking noise.
In summary, the possible causes of a squeaking noise when the brakes are applied are worn brake pads, loose brake calipers, and lack of lubrication.