My 03 had 4x4 problems when i bought the transfer case shifter wouldnt come out of 2wd well with some greaseing and some working we got that working the transfer case would ingage but the front tires wouldnt so we checked it out under and the vac motor and lines looked good so I brought to a local sand pit and messed with it and it worked after while and everything was good then the other day nothing??? cant get front wheels to work agian anyone know or heard of this before?