My clutch has been making a squeaking sound too, for almost a year now. The sound seems to come and go, so don't be surprised if you hear the sound again in a few days. Keep an eye on your clutch fluid, I have had to add a bit from time to time so I think its more than just a bushing in the firewall. I had the dealer look at it when the car was in for the ignition switch recall, but they told me everything looked fine, so I don't know what to think!