Hello everyone, i just bought a 2004 Expy EB. when i start the truck i do not get any 4wd lights on the dash and when i move the selector switch i do not hear any clicking. has anyone else had this problem? shift motor looks new, switch in dash looks new, hub actuator under hood is new. could it be the transfer case module on the drivers side door pillar? thanks any and all help is greatly appreciated, i really do not want to take it to the stealership