Herlux

Hi bringing up an old thread but did anyone find the issue??? Mine is very simular transfer case working clicking in left kick panel but no power to the vacuum switching valve. Vacuum before the valve but not after Therefor no locking of the front wheels Can someone please help me im puzzled. Have taken off transfercase and cleaned up was abit yuk. Have a 1998 ln167 sr5 hilux with add 4wd set up