I have a 92 ranger 4L 5 speed push button 4 wheel drive. The 4 wheel drive used to work when you pushed the button and you could hear it kinda click in at the transfer case and it all worked fine. Now you push the button and nothin happens. The light doesnt light up and there is no click at the transfer case. I have checked the big fuse under the hood and it is good. I looked under the truck at the transfer case and pulled apart the connection and it looks ok to me. Put it all back together and still nothin. Any ideas or info would be great thanks