How Serious is the Impact of Tensioner Abnormal Noise?

1 Answers
LaThomas
07/30/25 3:16am
Tensioner abnormal noise indicates that the tensioner bearing is damaged. The engine may experience timing chain/belt skipping, ignition and valve timing disorders, affecting the normal operation of the vehicle. If not replaced in time, it may cause engine vibration, difficulty in ignition, and in severe cases, failure to start. It may also deform the valves, causing damage to engine components, and may even lead to seizure, preventing the belt from transmitting power normally and resulting in vehicle breakdown. The tensioner functions on the engine's timing belt or timing chain, providing guidance and tension to keep it in an optimal tension state. It generally comes in two types: hydraulic and mechanical, both of which can automatically adjust the tension of the timing belt and timing chain.
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