Power steering grinding?

[dhmtnbiker42]

I have a 2003 4runner v8. About a week ago I replaced my power steering pump with one from napa because mine was whining. Was fairly easy to replace and went smooth. Worked great for about 150 miles. Tonight I took an hour long drive and a loud grinding began. The grinding randomly goes away now and then, and the new pumps whining a little, then the grinding comes back. Very loud. Fluid levels fine, pulled fine. Any thoughts?

 

[BlackWorksInc]

Could be a bad re-manufactured pump, if the pump is not working as intended I would go ahead and just take it back to Napa, explain what's going on and ask if you can exchange it for another unit and have this sent-back.

Did you do a power steering flush also when you installed the new pump and properly bleed the system?

 

[dhmtnbiker42]

I did not do a flush, but I did bleed it. Hopefully it's just the pump because napa will replace it for free, I'm just surprised it was fine for a couple hundred miles. Ill flush it when I replace it this time