this sounds as if your transfer case acuator motor is bad and sticking[common problem],you will need to replace the transfer case actuator...there is no real good test you can do for this,,,the actuator can just get weak,,it is also common to get a bad new one,,so when you replace it,,be sure to test it a few times
Please ACCEPT my answer so I can get credit for my work.i don't receive commission unless you do ..I'm not always going to be giving you good news,so please don't let this stand in the way of you accepting my answer.it does not cost you more money.we will still be able to communicate.. Bonuses and positive feedback are appreciated!if you are not satisfied with my answer,please do not leave bad feed back,i will gladly opt out and let another expert handle the question.if i have sent any diagrams,please print them.they will only stay on here for an hour or so.PLEASE ASK IF YOU NEED MORE HELP
I should have mention i Have the NP8 with the auto 4WD(which I would never use)
There is a 6 pin and 4 pin connector on this thing, I am heavy equipment mechanic and I am certain that you should be able to test resistance on one of these plugs I just don't know which one and what the specs are. Can you help me out more?
the np8 replaces the same
what are you going to test the resistanc on here?
these go bad all the time...you should be hearing the tccm click when the indecator is flashing when it wont shift.....there isnt anything wrong with your case..it is the encoder motor