I have a '94 XJ6 that has been sitting for about 3 years and I had to replace the fuel pump because the car wouldn't start. Now it starts but the fuel return line is leaking around the connection to the tank. It's not the connection to the tank but the end where the connector meets the actual fuel line. I've tried to repair it but as you can imagine it's next to impossible.
Is there a place where the line disconnects or am I going to have to get a whole new fuel line from engine to tank?

 

First and foremost, you are NEW, so welcome to the real world of motoring.

Your XJ6 is commonly known as an XJ40, confused, you will get over it.

That line is a one piece, dumb. Sooooo get to a breaker/wrecker, and cut the piece you need from a donor, and then cut yours, and join it with some EFI rated hose, and 2 clamps per side, done.

HOPEFULLY one of the lurking moderators will move this to the XJ40 area where responses will be more specific, but that repair I have done many, many times.