What are the symptoms of a broken engine timing belt?

[DawsonLee]

Symptoms of a failing timing belt: 1. Minor damage (small deviation) may cause the car to lose power and struggle to accelerate when going uphill. 2. Severe damage (large deviation) may result in no idle speed, or the engine shaking severely at idle. When accelerating, the exhaust pipe may emit a popping sound, and occasionally, the engine may stall with the popping sound. 3. While driving, the car may suddenly experience unstable idle speed, easy stalling, and most notably, poor throttle response and weak acceleration. If these issues occur and faults in components like the throttle body are ruled out, the timing belt should be considered as the potential problem. 4. If the engine suddenly stalls while driving and, upon attempting to restart, the starter spins at a high speed with no compression felt, the timing belt has likely snapped. Additional information: Timing belts are generally replaced every 60,000 kilometers. When replacing the timing belt, it is usually necessary to replace the tensioner and idler pulleys as well. If the belt shows cracks or missing teeth, immediate replacement is recommended.