04 around 70k miles. Changed my belt a couple months back, then the tensioner. Started hearing a sort of rattling noise near the belt. Now it's gotten a little louder and happens mostly when in gear waiting at light, or even now when in reverse. It it very faint in neutral but starting to hear it getting worse. Power steering pump issue? Should I go ahead and change it or is there something else I could do that I'm not thinking of before I change the pump?