Excessive Shock During 1-2 Upshift
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 TP sensor adjustment or line pressure, faulty accumulator servo release, damaged valve body assembly or brake band, or faulty fluid temperature sensor.