Steering Gear

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

Check the steering gear housing for looseness, damage and oil leakage as shown.
Check the steering column connections for looseness.

Fig 1: Checking Steering Gear & Lines For Oil Leakage
Courtesy of NISSAN MOTOR CO., U.S.A.