SO I am new to posting stuff in forums, but I have a problem. I have a 2000 Chevy Tahoe Z71. In the last 2 weeks both of my front doors have quit opening from the inside. I have to roll the window down and open from the outside. What part could have broke? Some kind of actuator? All I am finding online is lock actuators. The locks seems to work fine although they do stick halfway sometimes. Could someone point me in the right direction. It is getting a little embarrassing!!!!!!!!