so my 4 high don't work in my 97 s10 blazer. I can get it to go into 4 low and it makes a clunk noise like it is suppose too and the light comes on from the 4x4 panel. when I try to put it in 4 high both the 4 high and 4 low light flashes for 5 or so seconds and then goes back into 2 high.

 

switch going bad??? does 4 low actually engage tho? front wheels turn?

 

i put another switch in it and it still did work. and yes the front wheels spin when its in 4 low