When i shift to 4h the light doesn't come on and I checked that the front driveshaft is engaged(which it is). There is no vacuum coming out of the top of either vacuum solenoids. They both have 12v at each wire. I get continuity to ground from the transfer switch in 4h and 4l. Has been a long time since driven vehicle so don't remember if there was clicking when 4x4 was engaged. Please need help… fuse box and gem was replaced a few years ago when all electrical went berserk. Any help will be appreciated.