Help Help No more 4WD

[Scott Larson]

Possibly a broken chain or a fried clutchpack in the transfer case, I'm gonna go with a toasted clutchpack as you seem to have some torque applied to the front axles, hence the TOD lights showing output...
Ya know, it is possible that if someone filled the transfer case with hypoid gear oil or anything but the recommended ATF that the clutchpack is slipping that badly. In which case, a change to the proper fluid could correct the problem...wouldn't that be nice!! Definitely worth a shot...

[iyafyl]

Well, this is unexpected and a little embarrassing. It seems that hitting those grease points fixed the problem. I swore it was only a couple of months ago that I hit those last, but after thinking about it, I remember sweating my butt off while doing it...so it had to be July or August. Holy moly am I glad that worked out. I must have read 20 times or more how important it is to grease those points, and baby let me tell you....Imma believer now. Thanks everybody for the guidance. I maintenanced about 5 other items while I was down there thanks to your suggestions and now I'm headed up to the local ski lodge to run up a 35 degree incline at about 60mph in 36 inches of snow....BECAUSE I CAN!!!

[iyafyl]

I wasn't as lucky as I thought. Next day no more 4WD. I tried various ways to replicate what I may have done to get it working that one day, and here is what I found. If I jack up the front tires one at a time and rotate the wheels back a forth until they stop, then I get 4Wd for a while. I'm at a total loss now. Could that be a sensor that isn't registering or stops registering because it is so friggen cold outside, until I rotate the wheels a bit? This is sooooooo frustrating. Especially when I just got to experience how awesome this vehicle is when working properly and then lost it again the next day.