steering wheel humming

[Cecchini]

Two days ago I put on a used set of 18" wheels and ever since steering wheels makes this humming noise when i turn the wheel and i am stopped. It also seems to be vibrating more than usual when i turn the wheel. Any ideas what this could be. I haven't checked to see if i am low on power steering fluid but could that be it? The sound is difficult to explain but if it is anything it is a sort of humming noise. I can post a video if that would help.

[jackitorslamit]

check you power steering fluid level. but the vibration sounds like the tires are either out of balance or if they are used tires have worn uneven. Get them balanced and to check if they are round.

[biketsai]

well if it started to occur AFTER you put the wheels on, wouldnt you think that it is caused by the wheels?