The answer to this question is important for you and your vehicle, because it helps to keep the engine running properly. This is because the timing belt controls the rotation of the crankshaft and camshaft, as well as the opening and closing of the engine valves to let air and gasoline in and out.

The timing belt does this by delivering exact amounts of fuel, air, and compression to the combustion chamber at precise intervals. This makes the car run smoothly, and helps to save fuel.

How often you need to change your timing belt depends on the manufacturer and your vehicle. It's generally recommended for most vehicles to have their belt replaced every 60,000 miles, but check the owner's manual to see what your manufacturer recommends.

Symptoms of a Failing Timing Belt
Some symptoms of a failing timing belt include loss of power, misfiring, and engine vibration. This is typically a sign that the belt is beginning to wear down.

Another warning sign is belt cracks. This is due to abrasion along the edges of the pulley belt that may occur for a variety of reasons, such as improper alignment or extreme weather conditions.

The most common way to tell when your timing belt needs to be replaced is if you hear a whining sound coming from the engine bay. However, this is not a surefire sign that it's time for replacement, so be on the lookout for any other warning signs to help you know!