Won't go into 4WD
 

Well, last week I tried to do a little off roading, nothing much just a little hill climbing. When I went to put it into 4WD high (on thr fly, I was only going 5+ MPH); nothing, no light, no engagement. So, I try 4WD low, I stop, put it in neutral: nothing. I guess I need to make a trip to the dealer..

Anyone experience a similar problem?

I had a similar problem a few months ago. I would try 4Hi and 4Lo but nothing would happen. No noise or anything. I eventually checked the fuses. They were all ok, but afterwards it went into 4 with no problem. I guess I just had a loose fuse or something, I really don't know. I took it to the dealer the next day just to make sure, and they couldn't find anything wrong. Just something to check before you take it in. Good luck.