Hi all im new to this forum. I just recently purchased a 2001 suburban LT with 105000 miles on it. Overall it seems to be in really decent shape. We knew the previous owners and they took pretty good care of it, as it was there 3rd vehicle they didnt have to drive it daily. He told me when we purchased it that the only problem hes ever had with it was in the 8 years they have had it sometimes it will blow the fuse under the hood that enables the 4x4 to work. We have been driving it for a couple months in snow and rain no problems., Today however the wife went to put it in 4x4 and no lights for 2hi or any on the 4x4 switches. I got under the hood and there was a 20amp fuse blown, i cant tell you what it is right now because shes not home, but i replaced it everything is working fine again. Any ideas would be greatly appreciated.