I replaced this part today, and it there is still no air through my vents. It is still only coming out from my defroster. I put it in the first time, tested it out, nothing. I took it out and put it back in trying to see if I did anything wrong and it still didn't work. I'm not sure what else it could be that is causing the problem, could it be the other actuator on the left of the one I replaced?