So I have a car that is making a squeaky noise. The mechanic suggested I change my vibration damper. The original was too expensive, so I bought a cheap Chinese replacement. It was a bit heavier than the original. Then when it was installed. The sound went back to normal. After around 4 days, there was a squeaky and loud rough noise. Upon having it checked by 2 mechanics, they said it was the belt tensioner. The first mechanic proved it to me by using a wrench and tightening the system, and the noise went away. So I bought a tensioner and had it replaced. Now there's another sound. It's very different from the sounds before. It was whiny. I had it checked again and was told the compressor needs replacing soon. The mechanic told me that I should just wait for it to die, and that the compressor wouldn't affect the engine, only the AC.

There is also a squeaky noise from the belt during start. But when the engine gets going, it disappears. So I went to an AC store to have the compressor checked. I was told that it was still okay, but the pulley is wrattling, and that I needed to tighten the belt or replace it.

I was wondering. Did the heavy vibration damper cause this?

Or did the other parts start dying down because of the tension from the stronger newly replaced vibration damper?