Power steering pump is noisy and hard steering at low engine rpm's. Only in cold weather.

Dealer replaced pump in January but still has the same issue.

Asked the dealership to look at it again during the last oil change, but it was warmer outside and didn't make noise.

I've seen posts on changing a screen, but I would have thought that this was done when they pump was changed?

Of course it won't make the noise on a 60 degree day at the dealer, so the service manager will "look at it" while I spend $600 to have the timing belt and water pump changed. I said "I don't want to have to bring it back if there is a known problem."