Hello all
I have a 96 blazer, my glass back hatch did open when i was in the parking lot at work and then when i got to autozone to get something there it wont open... Would heat have something to do with it not opening or a fuse or that blue plastic piece.

 

If you can hear the motor triggering but the glass doesn't open, it's probably that broken plastic linkage. If you don't hear the motor whirr it's probably something electrical.

 

I hear the motor clicking it open but nothing happens, I think its the plastic linkage. I will check to see if its the fuse before I open all that mess up.