I am having a problem with my 4-wheel drive not working. It is hard to engage and then when it does get into 4 wheel high it slips and grinds when I drive on a slippery surface. It sounds like it is slipping in and out of 4 wheel drive. If I go slow and don't put a load on it the grinding noise doesn't happen. But as soon as I try to get traction through some snow and give it gas it will grind and slip.

I have had some issues with my transfer case before. Could it be the transfer case finally crapped out?

Any info would be nice.

 

How long has it been since you changed your transfer case oil???

 

I added some today. Also I put some in about a month ago because it leaks a little bit. After I noticed it leaking I would always check it to make sure it didn't get dry.

 

Check the little stuff first, like the Vacuum lines. I had the same problem with mine and it was loose vacuum line connections.