Belts and hoses are extremely important for the operation of your Toyota. There are a number of each under the hood of your vehicle that help with the operation of several parts and systems. One example would be your timing belt, which helps to keep engine parts running in sync with one another. When your car belts wear out, many other components can stop working as the belts help to power different parts of the engine. They can wear out and snap or develop cracks. Like belts, hoses are important and can wear out as well.ÊYour radiator hose is a prime example, as it helps to send coolant to your engine and keep it at an optimal operating temperature. You might find there are leaks in them over time. A thorough visual inspection is a good way to determine the condition of these parts. Make sure to replace them as needed with OEM Toyota parts.