So I was playing around with my guitar today and I noticed that my volume knob was loose so I went to tighten it and there was no screw on it. So I was like "why the hell is there one on my tone then" and gave it a lil pull and sure enough after owning this guitar for 2 years I just now found out I had a coil tap.

I was wondering what exactly it does/will do with my sound?
Also as stated up above is there anyway to tighten my volume knob?
^that is probably what is happening with his guitar, but that isn't a real coil tap. That is a coil split. A coil tap is when a single coil has an extra line out somewhere in the middle of the coil. When the tap is on you are only using part of the coil instead of the whole coil.
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