Ok, I did a lot of searching but didn't quite get to a full answer. My fuel heater appears to be leaking out of the wire going to the black cap on top of it (kind of bubbles out). Sooooo, I am assuming that the heater terminal is leaking as well as maybe the heater to header O ring. How does that wire come off? I tried prying up on the cap and the plastic starts to bend up instead of the cap coming off the top of the heater. I saw that someone mentioned the wire and cap going down through the top of the header once you take it apart from the inside. But, doesn't the cap and wire have to come off to be able to put on new O rings? Also, where do you get the O rings for the heater?