Now I know I've seen a couple post about getting this off, but my goodness this is not no "quick" disconnect?! I have pushed the lil white ring into its housing tuggin and all trying to get this to come off what gives? So there is a tool somewhere for this application? What does it look like cause someone pointed me to the wrong thing last time I was at the auto store. I ended up buying those quick disconnect plastic things used to remove fuel lines and it just wont fit in this thing at all... Seems I need some slim strong semi circular device? Help!