steering creaking noise on 1998 Mercury Grand Marquis

Noise from front end when turning steering wheel.

Asked by for the 1998 Mercury Grand Marquis
The two most common causes are the inner tie rods and the lower ball joints. Neither are able to be greased, in factory form. A good test is to lay your hand lightly on each part separately, while an assistant moves the steering wheel. You can normally "feel" the creak in the part.