If you've noticed excessive play while steering, or you’re having trouble maintaining your position on the road, the problem could be any number of things including worn struts, tie rods, ball joints, or steering rack components.  Whether your power steering fluid is just low or parts need to be replaced or repaired, it's important to bring your vehicle in as soon as possible.  Some of these problems could cause you to lose control of your vehicle, so don't procrastinate having your steering checked.