the abs light is on r a reason. get the codes pulled to find out why its on. everytime you shut the truck off the system resets. if its on evrytime you key on then the truck is still seeing the problem. when abs light is on it disengages 4wd. it siunds like your having a problem with the 4wd module. do searches on here. someone ran a new ground from the tranfer case to the frame and fixed the ...



