How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Chris(aka-Moose) Your Own Question
Chris(aka-Moose), Nissan Technician
Category: Nissan
Satisfied Customers: 615
Experience:  16 years of experience
Type Your Nissan Question Here...
Chris(aka-Moose) is online now
A new question is answered every 9 seconds

My daughter has a 2002 Xterra and has the Code P0731 which

Customer Question

My daughter has a 2002 Xterra and has the Code P0731 which we know is a gear shift ratio problem. How is this problem fixed? Does it require a new transmission or could it be something simple to fix it?
Hoping for the simple answer. Any help is greatly appreciated.
Thanks, Paula
Submitted: 1 year ago.
Category: Nissan
Expert:  Super mechanic replied 1 year ago.

Hello and welcome. My name is ***** ***** you for visiting the site.


To be honest, I wouldn't be able to give you "the simple answer". However, that is not necessarily a bad trans. More likely one of the shift solenoids, (or valves) is not working. There are some tests that can be done to determine if that is the case.


If you accept my additional service request for your email address, you can give me your email in a private info box and I'll send you the instructions in a PDF file, the file is rather large.

You will just have to accept the additional service offer and ENTER your email address in the “ENTER CONTACT INFO” section so that I can see it, Thanks