Did the flush noise is not as loud but discovered what happened to my disco. Apperantly when I wasnt at the shop were I was working on my truck a friend of mine noticed that it was low on fluid so he decided to add brake fluid to it instead of power steering fluid and didn't mention it until now.

 

With friends like that, who needs ..... well, purge it out (open bleeder on steering box, keep pouring in new until it comes out same color, then keep going one more bottle to be sure you got it all).