This isn't an easy job to do. I'll tell you that much. The window regulator is what pushes the window physically up and down and its secured behind a series of metal framework in the door. To remove it, you're going to have to dismantle most of the inner door to get it out. If you've not done this before or have no idea what you're doing, I'de leave it up to a professional. I know, I have the same problem w/ my passengers side window. I'm taking it to the dealership Tuesday. Not saying it can't be done on your own as I'm sure it can. I just don't want to risk it myself.