97 Power Steering Problem

[construct30]

I put a Remaned power steering pump in my 97 Cavalier a few weeks ago. It worked fine. Last night it quit working. No noise, didn't freeze, just no power steering, but only when I was not on the gas. When I was starting out or driving it seemed OK, when I let off the gas to slow down, it got really stiff. When I installed it, I ran fresh fluild through it a few times to get all the junk out like the book says, then I raised the front end and bled it I put the little flow control valve back in the hose. It worked great for three or four weeks and now bad.
I assume it is just a bad remanned pump, but am I missing some thing? The fluid is OK and looks clean and fresh. Why does it work at higher speed, but not at idle?

Thanks mark

[shakewell]

I'd be suspicious of the pump also.

[construct30]

I changed the pump tonight, again. I flushed it a lot more this time and went through the bleeding procedure in the service manual a few times. I'm trying to get all the bubbles out. I left the front up in the air for the night and tomorrow I will bleed it some more. I will see how it goes tomorrow.

Mark

[jakegday]

i guessing a bad pump also, i changed mine and didnt do anything special, i didnt even "flush" it, i just emptied the resivoir and refilled it once the new pump was in place,

[construct30]

We've been driving the thing around the last few days and it seems fine. I hope it doesn't go bad again any time soon, or I will be suspicious. I wish I could have bought a new pump without going to the dealer. The remanned was cheap, but I always wonder about that stuff. I've had troubles in the past with remanned master cylinders too. I buy new if I can. I guess this just makes me wonder about remanned even more.

mark