power steering fluid leak how to diagnose

What is your question?

I have a 2003 trailblazer, high miles, started leaking power steering fluid and making a grinding noise on a long trip...it is spot leaking...how do I tell if it is the power steering pump, rack, hose, or cooler

What makes this problem better or worse?

steering

How long has your 2003 Chevrolet Trailblazer had this problem?

just happened