Ford Focus TDCI 1.6 clutch pedal

hello, good afternoon. Briefly summarize the problem in question
driving on the highway when stepping on the clutch pedal to change march. I have jumped a dock with a yellow piece and another piece,
the marches changes them well, but the pedal is a little more loose
I think the piece is the pier return of the pedal so that it returns to its original site not?
Please if someone can help me.
I am looking online if I see those pieces somewhere but I don't find them