I just bought another ranger on the cheap and the 4x4 does not work. When you first start the truck you can hear a clicking in the dash and then a few seconds after it stops clicking and then the 4lo and 4high lights flash 6 times periodically while driving there after. Any guesses as to where I can look to resolve this issue?
What year? There are different setups for different years. Check the shift motor on the tcase first. They were prone to failure on the older models. If it is the one with external automatic locking hubs (93-94, maybe more years) they suck too. I had to replace both hubs and shift motor. Hope this helps!
flashing lights means check the fuse for the system. Its under the hood. Mine does the same thing but one of the many modules that controls the 4x4 is broken. This issue can get expensive quick if its a module