I'm getting this really loud buzzing sound whenever I play my bass. It didn't happen when I first bought it, it only started after I took all the tuners off(to polish them, it was a used bass, and it was really dirty). It sounds like there is something rattling around inside of the tuning peg itself(perhaps a washer). The sound is the worst on open strings, but is still present on fretted notes as well. Has anyone had this problem before? Are the tuning pegs not tightened enough? Are they too tight?