do you mean this pic is from 3dr cossie, but there should be one in 2wd too.
if you mean that, take that valve of, clean it up very good, oil it whit gun oil or something thin oil. put valve back in and connect the wire. now try again.
note. there are 2 sprigs in that valve. and you must measure the little nut in the valve, so you can put it back to same position and lock whit a bit of paint or threadlock or something similar.