* Idler pulley: The idler pulley is a small pulley that helps to keep the serpentine belt in place. If the idler pulley is worn or damaged, it can cause the belt to squeak.
* Tensioner pulley: The tensioner pulley is a spring-loaded pulley that helps to keep the serpentine belt tight. If the tensioner pulley is weak or damaged, it can cause the belt to squeak.
* Alternator: The alternator is a device that generates electricity for the vehicle. If the alternator is not working properly, it can cause the serpentine belt to squeak.
* Power steering pump: The power steering pump is a device that helps to turn the steering wheel. If the power steering pump is not working properly, it can cause the serpentine belt to squeak.
* Air conditioning compressor: The air conditioning compressor is a device that helps to cool the vehicle's interior. If the air conditioning compressor is not working properly, it can cause the serpentine belt to squeak.
