Help! Please tell me how bad I screwed this up.
So, since it is (finally) heating up here, I noticed that the AC on my '93 4.0 is, well... not. I searched the threads and found a few suggestions and after poking around some found that where the low side metal tube enters a coupling that passes through the firewall, it had popped out..... in my sleep deprived state, I pushed it back in... and it re-engaged solidly... however after later trying to add refrigerant I noticed the problem.
I assume there was supposed to be a seal, o-ring, whatever that sealed the interface between that pipe and the coupling because now anytime there is any amount of pressure in the system it comes rushing out around that fitting... and I now can't seem to dislodge the pipe again to see what I can see.
So, here's the pair of questions... how bad did I screw it up and how do I fix it. Despite this boneheaded move, I am actually quite mechanically capable and confident doing most any fix if I have clear direction.
I have tried searching the threads without avail, but if you find something that I missed that answers this, please feel free to just link me there, but you guys are my only hope as come August I'm doing a 4k mile road trip crossing Utah and if I don't have AC by then my wife will leave me for the buzzards.