fine at higher speeds, gets harder and harder to steer the slower you go
how much to fix?
Wow; How many post are you going to do, Don't like the answer as given, well sorry don't buy the car.
First make sure belt tension is correct and you have the correct type belt ie a "v" or flat belt. If your car has tensioner pullys, they are questionable after 50K MILES BUT can fail anytime if defective. However they USUALLY become noisy if bad. If you truly have NO noise, it isn't a bearing failure on the PS pump but the pump could still be bad due to internal problems. Check for collapsed or failing PS lines. I think you likely have a failing PS pump if your PS lines are OK. good luck.
I would not buy this pos!!! Unless it is a steal. Check kelly blue book and subtract $1500.00 from the rating on the car, which is probably less than avgerage!! That is if the car is in good shape otherwise, we cant tell, only someone that knows cars can, that person needs to look it over, not asking a bunch of questions online!!
There pieces of sh--s..the pumps not pumping enough...