Hi I love my new eco boost. BUT the rear power window sticks and I KNOW it has something to do with the rubber casing, there is a split but it has to be there so the top will go up/down. I tried silicone and it works once or twice then starts sticking again. I have to pull the window closed about 1/2 " manually to close it all the way. Any suggestions? It really is annoying and I know it's a small thing to fix but I have no idea!! Thanks all