Anyone? I've been struggling all day to remove rear expansion valve, the larger connector does not want to come when I'm done from the EVAP core. My rear AC lines are seized on to the stud underneath of the vehicle. I cannot remove the EVAP core without ruining the hoses and I don't want to spend that much money for lines I'm just going to leave the expansion valve I have the smaller line that runs to the junction block underneath of the vehicle removed and need to know if no ring should go at the connection I do not see one currently if anyone can help I would really like to get it back together tonight