Okay, let me confess to be a new airplane owner and a relatively new pilot; so forgive me if I showcase a lack of protocol or just plain ignorance. I am really struggling to learn more about why my 150 recently just stopped turning when I pressed on the pedals. I pulled it out of the hangar and began my taxi when I realized that I could only use brakes to turn. Both pedals in either direction just went to the floor. Is it the steering tubes? Both? Is there some sort of spring or bungee inline with the control cables? I see nothing of the sort when I look at the service manual, but really need some guidance.