Interesting problem on 09 MTX Focus

Hello everyone!

I need a little help from all you Focus masters out there.

I recently came across a strange problem with my 2009 Ford Focus. I had to get my hydraulic fluid in my MTX changed (under warranty) because my clutch pedal travel between engaged to disengaged diminished by at least 50% under a cold start. Then after everything gets warmed up a little the clutch would start to feel close to normal again, although slightly softer.

I took it to the dealership where they changed the fluid. After that the car felt good as new... for a few days. Then it started doing it again and now I noticed that when I park my car and leave it in neutral, (with the clutch engaged) I hear a strange rattling sound coming from my car. But then when I press the clutch down the rattling stops! I let go of the clutch pedal and the rattling starts again!!

I'm going to take it back to the dealership again to see if they can fix it but can anyone tell me what they might think the problem is? That way I could be more informed when I head out to the dealership to try and explain what's going on.

Any help would be greatly appreciated!

Thanks,