As with many different parts of your vehicle, your timing belt should be inspected and replaced as needed. Without a properly working timing belt, your engine could fail. Your vehicle could also experience permanent damage caused by your broken or malfunctioning timing belt. Your typical Ford vehicle will need its timing belt replaced between 50,000 and 70,000 miles. A quick inspection can determine if it’s time for a replacement. It’s always better to replace your timing belt before it causes a problem.