hey guys i need your help i just got a fc nd i had it for like 3 weeks nd all of a sudden when i let off the clutch it makes this loud knockin/grinding noise that can be heard from under the hood nd the car wont go any where if in any gear nd it even makes the noise in nuetral plz help

 

It sounds like part of the clutch assembly died. Possibly the throwout bearing. There is also an inspection plate on the top/rear of the engine that can be removed to look down into the clutch area. TII transmissions also have an inspection plate on the bottom that can be removed.