Transmission Overheats
WARNING: This page is about a different car, the 2002 Infiniti QX4, 2001 Nissan Pathfinder, and 2001 Infiniti QX4. However, it is still accessible from the selected car via links, so may be relevant.
Possible cause: incorrect fluid level, idle RPM, line pressure, misadjusted TP sensor, or damaged line pressure solenoid, control valve, oil pump, reverse clutch, high clutch, brake band, forward clutch, overrun clutch, low and reverse brake, or torque converter.