Hi guys. I noticed that my Fiat Grande Punto natural power started a couple of months ago to make a " chirping" sound, some sort of a metallic rubbing sound when pressing the clutch. It isn't loud, but I notice the change of sound between pressing and lifting the clutch. The car doesn't have any kind of power decrease or revs number problem. Is it the throw out bearing? It started after i used for some months a defective starter... could it be the cause? Thanks guys.