My daughter has the vehicle out of town for a while so I can't see it for now but here is my question. I know the front axel has a solenoid to engage 4WD but is there a separate solenoid for the transfer case also? She tried using it last week and said it didn't work. I know for a fact she hasn't used it at all in the past 3 years. I am thinking it just might be from a lack of use, a bad solenoid, or a bad connection. I'm going out to see her next week so if anybody has any trouble shooting ideas I would appreciate it. I know this is not much info but it is all I have for now. Thanks.