Power Steering Leaking from small tube - how to fix

[moreforles]

my ps fluid is leaking. it appears to be coming from the small tube going into that little block with 2 tubes going in and 2 tubes going out. the tube has this little black rubber hose on it that slides back and forth. I dont know what this black hose is for but the leak is coming from inside that black hose. it is very hard to get at, a lot of stuff blocking in the way. the 5th picture down from this post shows the tube with the black hose. any suggestions? do I have to replace that bottom tube and take everything apart? what is that black hose for? thanks

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[positron1]

You need to replace the power steering pressure hose. It's all one piece is the problem.