that's why I tell people to just cut the plastic heater hose connectors off when they go to replace them because 1. you are not going to re-use it, 2. they never come off "easy" ever. you will fight those things for half the day when you could have just cut them off and been done in 10 minutes.I don't know why I didn't just zip them off with a carbide blade in the first place. I've been soaking the nuts in PB Blaster multiple times a day all week, and they won't budge. I was about to break out the torch and then my brain went, "hey dummy, cut them in half."