Had a leaking connection on the Explorer sometime between last fall and this spring. System was completely empty. Replaced said seals and vacuumed the system out, ready to add nearly 4 cans (45 oz). First of all, only two out of the four cans easily emptied their contents. The other two took forever/had to detach/reattach the tap multiple times to get them flowing. And both of them continued to dispense refrigerant after the tap was pulled off of them, until the valve decided to seal a couple seconds later. So much for these newer cans being environmentally friendly. FYI, I was using the correct tap for self-sealing cans.
