A broken timing belt will cause the timing belt to break while driving, causing the engine valve to lift, requiring an engine overhaul.
Under normal circumstances, if the timing belt is maintained normally and replaced according to the miles or years specified by the manufacturer, the timing belt will not break.
Generally, if the timing belt breaks, the car will lose power, accompanied by loud abnormal noises, and there will also be abnormal noises when restarting.
The timing belt is an important part of the engine's valve system. It is connected to the crankshaft and associated with a certain transmission ratio to ensure the accuracy of intake and exhaust timings.