When I push the 4WD button of my 93 F150 XLT 5.0L, nothing happens. No 4wd light - no 4wd action. My manual locking hubs and my 4wd were engaged when I went to drive my truck after it had been sitting for 3 weeks. I heard a snapping sound as the truck started moving, and assumed that it was the brakes releasing after a while outside in the Minnesota winter. My 4wd was engaged at the time, but after turning it off, I am unable to turn it back on. I checked the fuses in the fusebox, what else could be wrong?
Thanks!