truck is stuck in 4x4 low.won't switch out.tried everything i could think of. on 2000 Ford Ranger

dash lights for 4x4 high and 4x4 low flashed on an off a few times.

Asked by for the 2000 Ford Ranger
may just be an old sticky 4x4 switch on the transfer case or the front differential. best thing to do is take it to a tranny shop for further inspection