Avensis T25 vibration at 2800-3000 rpm

[rugabi94]

Hi, I have a Toyota Avensis T25 2006/11 hatchbak facelift edition, 1.8 petrol . I have a resonance from the front. The car starts resonating at 2800 -3000 rpm. It not depends on speed but rpm. My friend also has an Avensis, same model, but resonance starts at 3200 rpm. Any idea what causes that? I've read, maybe a self-resonance but it's verry annoying. I'm tring to replace the front engine mount, maybe it helps.

[Noi]

I had a rattle that started at about 1500 rpm and above 1700 stops, replaced the timing chain and everything is fine. The problem was only noticeable when the engine had load, when it was in neutral, nothing was making the sound.