my blazer has the manual 4x4 engagement, but when i try to engage four high or low nothing happens i can feel it shift to the lower gears in 4 low but no lights come on to the display nt even the 2 wheel drive light. I parked it last winter and the 4x4 was working fine but when i got it started up this year i can't seem to get it to engage. all the vaccum lines seem to be in good condition. Any suggestions any help would be greatly appreciated

 

do you have fluid in your transfer case. make sure you have fluid in it.

 

well i did have a leak that i knew of it may be the source ill check it out thanks

 

or it could be your front drive shaft ujoints.