What are the symptoms of a broken timing belt?

[McCaleb]

The symptoms of a broken timing belt are: 1. The car will lose power and struggle to accelerate when going uphill; 2. There will be no idle speed, or the engine will shake severely at idle, with the exhaust pipe making popping sounds when accelerating, and occasionally stalling with the popping sounds; 3. The car may suddenly experience unstable idle speed while driving, making it prone to stalling, mainly with poor throttle response and weak acceleration; 4. The engine may suddenly stall while driving, and when restarting, you may hear high RPMs with a feeling of no compression; 5. Abnormal noises may come from the engine tensioner pulley during acceleration, or you may hear strange noises from the engine pulley area.