Technical Strange sound after changing timing belt | Seicento 1.1

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Technical Strange sound after changing timing belt | Seicento 1.1

spoooky

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Oct 24, 2025
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Hello guys!

After replacing the timing belt, the engine started making a strange noise around 1500-2500 rpm. I don't think it's engine-related, as the noise only appears at certain rpms. The service center where I had the car serviced said it was nothing serious and I could continue driving without citing the source of the problem.

Another service center suggested it was the alternator bearing, but I doubt that either, as the bearing hums, not creaks, and should hum constantly, starting at idle.
What do you think?
 
Model
Seicento 1.1
Year
2006
Mileage
48500

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