Hi guys,

When my windows are partially up or down they rattle, if I get someone to hold the glass or press on it, while they are partially down the rattle stops. when they are all the way up or all the way down the rattle stops.

I tried having a look and nothing was hitting the glass on the way up or down on both sides.
There's no stuttering when the windows go up or down

Sounds like something is loose any suggestions on what it is?