I have seemed to have lost my 4by4. The transfer case has a electic shift that doesn't seem to be moveing when I turn the selector switch to 4 by. I took the motor of the transfer case and applied 12 volts to it and it turned so the motor is ok. Checked the fuses and they are ok. I also just replaced the transfer case. F350 2000 7.3 Any Ideas anyone

 

test the switch and wires to the transfer case. also check for any loose, cut, burned, discolored, or frayed areas in the wire.