From the engine noise to the vehicle mileage, There are many ways to understand this.
Let’s take care of our business Signs indicating that the timing belt needs to be replaced Let’s investigate.
The most basic indicator: the expiration of the date or mileage recommended by the vehicle manufacturer.

The vehicle owner’s manual will clearly indicate the time or mileage required to replace the timing belt. Generally 60,000-120,000 km or Between 4-6 years It is recommended to replace it.
The sound of the engine running.
When the timing belt becomes loose, there will be a hissing sound or You may hear a beeping sound. It also works harder than before.
Engine vibrates or vibrates.

If the timing belt is not working properly the engine timing is disabled. Here, timing refers to the synchronous operation of the opening and closing moments of the valves in internal combustion engines with the movements of the pistons. If your timing belt is worn out, the engine will vibrate or vibrate.
Noises coming from the exhaust.
If the above timing problem occurs, the combustion process is not going well and this can cause noises from the exhaust that you are previously not used to.
What should we pay attention to when we check it ourselves?

On the timing belt cracks, abrasions, fraying or broken fibers If it is visible, it definitely needs to be replaced. Oil or fluid leakage from the surrounding covers can also wear out the timing belt.
Sources: 1, 2, 3
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