A few weeks ago I noticed that whenever I turn my steering wheel, my car makes a low, moaning sound. This happens whether it is a shallow or a sharp turn, but my handling does not seem to be affected (though the sound is worse on sharper turns). I don't know a mechanic I can trust in the area, so I thought I would do some research on my own before taking it in. Any ideas on identifying the problem or a solution?
Most likely this noise is caused by low power steering fluid.
Look in your owner's manual as to what type of fluid you need.
Under the hood you will find a power steering reservoir. You will probably notice that you need to add fluid. Add fluid while someone turns the steering wheel from side to side. The noise you're hearing is air in the system. By turning the steering wheel back and forth while you add fluid you are essentially "burping" the air out.
The noise should go away and you should make sure that the fluid is at the "full" line.
The next thing you need to do is have the vehicle looked at for a leak. Power steering fluid stays in the system unless there is a leak. If yours is low, it's leaking somewhere.
Hope this helps.
〉 Answered on Feb 15th, 2008 by Lori Johnson, Owner and Instructor at Ladies Start Your Engines