Hi, I had the timing belt renewed with my elk and now it makes shrill roaring noises. I was already in the workshop, which has disassembled everything again. The workshop was quite sure that it is due to the timing belt covering. After they have disassembled everything again to look at the coils and water pump, they didn’t know anything further, they all built up again and now the shrill roaring sound is still there, but probably less. Now they push it on the timing belt themselves. Can anyone explain how a timing belt alone can make noises? My other question would still be whether my Volvo is setting itself hydraulically, so the timing belt or if it has to be adjusted, someone knows that? Data about the Volvo in “My vehicles”. Thank you and greeting