Squeak noise coming from clutch release mechanism when clutch disengaged

Question

I need help diagnosing and fixing a sound coming from my 2007 Subaru Outback, 2.5L engine, 5 speed manual transmission.

It is making a rhythmic squeak/chirping sound at idle, almost sounds like a cricket, but faster.

The noise disappears completely when I put any kind of pressure on the clutch pedal - even a tiny slight pressure. This made me think that it could be something to do with the clutch release mechanism, so I tried holding (put a bit of pressure on) it and sure enough the sound went away.

Here is an image of what the part looks like:

I believe the noise also happens when I am driving. Basically, any time the clutch pedal is completely disengaged (clutch disc engaged) it happens, but any kind of pressure on the clutch pedal removes the noise completely.

I've looked around the internet and I've heard the following possibilities:

Dual mass flywheel
Throwout bearing
Clutch release mechanism needs cleaning and greasing

What could be the problem and how can I fix it?

James · Answer

The problem is most likely due to old slave cylinder causing the throw out bearing to make noise. I had a similar problem which was solved through this.

Squeak noise coming from clutch release mechanism when clutch disengaged

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