Your belts and hoses play a critical role in the function of your vehicle, because these parts are tied to the cooling system, air conditioning system, charging system, and engine. However, despite their necessity to vehicle operations, these parts often wear out much faster than others because of the exposure to vehicle vibrations, heat, and harmful chemicals that can cause cracks, rust, and leaks. To keep your vehicle running smoothly, you should always be sure that your belts and hoses are in good condition by keeping an ear out for grinding, screeching, and squeaking noises.