So a lont time ago when i first bought my jeep the 4wd went out. I took apart the 4wd and the 4wd shifter fork. there was slop in the fork. fixed that. cleared out all the vaccum lines. and it worked until now. I was driving down the road and tried putting it in 4 high and the light didnt come on. then i went out mudding and it wouldnt go in 4wd. My friend messed with the vaccuum lines and it popped right in to 4 high but my light didnt come on. then a few days ago i tried putting in in 4 high and didnt work. Then a few days ago i went up a hill couldnt climb anymore so i stopped mid way up the hill and popped it into 4 high and zoomed up the hill no problem. but the light didnt come on. Burnt out part time light and crappy vaccum line connections?

 

The light works off of the same vacuum line that moves the actuator over.

 

could the light have burned out?