there is a solenoid issue with the maxima...I would have the computer scanned for tranny codes its likely this is the issue there is a service bulletin on this
4 SPEED AUTOMATIC TRANSMISSION HARSH 1-2 SHIFT AND/OR DTC P0745 STORED
IF YOU CONFIRM:
The transmission fluid is full (correct level) and in good condition (not burnt), and
Use moderate force to pull/push the wire in and out of the terminal (no more than 5 lbs of pull force).
This is a "cold" solder. The solder did not flow into the crimp and between the wire strands.
The solder flowed too far from the crimp and onto the terminal.
When the terminal is reinstalled the solder will be under the bolt washer and the washer will not seat flat.
The solder flowed into the crimp and between each of the wire strands.
The solder is not too far out on the terminal.
The wire should not move.