Hi i have a 99 blazer 2dr with the push button 4x4 if i hit the 4high button it doesnt ingaged the light doesnt even come on now if i put it in neutral the and put it in 4low it goes in try to put it in 4 high that way it just flashs then goes back 2wd if u have any ideas please let me know thanx

 

Any ideas?????