Please could u help?

I have a Skoda fabia 2005. The problem is when the engine
has been switched off. If u push the clutch pedal in it makes a squicking
noise. It does not make a noise when the pedal comes out. It has been like this
for 2 to 3 years.  It has had mot plus full
services and all ok. The pedal still feels normal when changing gears and do clutch
control. And the gears feel normal. I have greased and oiled the pedal inside
the car but no different. When I have it on lift it sounds like its coming from
inside clutch housing. Do u have any idea what could cause this.

Thanks

Michael