On my 1990 E34 535i, whenever I accelerate there is always a ticking noise that stay until like 3,000 rpms+ then it goes away!! I just got the belts changed out and was wondering what it could be and if it was normal?!?!?! I never noticed it before or at least not too much cuz I usually have my mucis loud enough to where I cant heear a small noise!! Thanks for the help!!