I've noticed recently that when my engine is running, with no pressure on the clutch I can hear a high pitched squeaking. However, the noise stops if I depress the clutch.
Just the weight of my foot on the clutch pedal is enough to almost completely stop the noise, and any conscious effort to depress the clutch successfully silences it.
The noise is only audible when the car is parked up and idling, the noise isn't detectable when I'm driving along (presumably because the engine is louder than the noise).
A quick google search had led me to think that the problem is likely a bad throwout bearing. Can anyone with a car background give me their opinion on the situation? How much do you reckon is reasonable for a garage to charge?
(also, while I'm here... cost of replacing the radiator?)