1. Retighten Ground Screws

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition switch OFF.
Loosen and retighten engine ground screws.
1. GO TO 2.

Fig 1: Locating Ground Screws

Courtesy of NISSAN MOTOR CO., U.S.A.