What are the symptoms of a worn timing belt?
Most of the time there will be no symptoms. A timing belt ages and the adhesives and cords that hold it intact break down. Often, the first symptom is when it breaks and the vehicle quits running. This is particularly devastating on interference motors, as the engine may be damaged beyond repair. Because there are usually no symptoms, the manufacturers recommendation for replacement should be strictly followed. It is also important to realize that time is as important as mileage. Most manufacturers state seven years as the interval to not be exceeded. See our Detailed Topic article All About Timing Belts for far more details.
