If a squeaking noise is heard while turning the steering wheel, the outer tie rod ends may be worn and should be replaced.Google+
Car Problem Reports
Ford Mustang Squeaking noise while turning due to worn outer tie rod ends
Ford Mustang Problem
Suspension & Steering Affected: 3.8L V6
Average Mileage: 99,145 mi (75,000 mi - 134,000 mi)
Visitor, 2004 Ford Mustang, 75,000 mi
Whining noise while steering to the left or right, most noticable at a slow speed.
Visitor, 1999 Ford Mustang, 120,000 mi
I was doing about 25 when the wheel whipped to the left and the left front end of the car snapped down dragging the tire... there is a noise that let me know before it broke and i couldnt have waited longer.
Sqeaking, pulling noise during a hard turn.
Visitor, 1997 Ford Mustang, 134,000 mi
My car turns hard to the right, and now I hear it squeaking when I turn slowly.