I have a 2005 Ford Focus station wagon. The back windshield wiper slowly had started to cover less and less of the back windshield (up until yesterday it was only wiping the bottom 30% or so, the top 70% was completely missed because the blade was not connecting to the window).
I replaced the blade yesterday as my front both needed replacement about a year ago and I just knew we were going to have freezing rain while driving to work today. In this process, I more or less, well bent the back wiper assembly until it was working correctly - this included using a twist-tie to correctly apply pressure to get things to work.
While this might have "worked" I don't necessarily know if this is the correct way to fix this problem. Is there a more recommended strategy than this?
Here is a rough approximation of where the wiper blade was not hitting (everywhere above the red line):
Here's the blade itself. You can see the twist-tie. The arrow points to where I bent it out slightly to apply more pressure.
Note: the spring is completely clean (no dirt/ice/etc).