Humming noise and chk engine light on 1998 Chevrolet Malibu

I have this loud humming noise especially when I turn the wheel, and the ck engine light just came on. what could be the problem and how much would it cost?

Asked by for the 1998 Chevrolet Malibu
You need to have the Check Engine Light code scanned. It will help you to determine what the problem is. You may want to check the level of the power steering fluid as well.