It is next to impossable even removing the tray to get up in there as I am sure it is a lose connection.

They had to pull the fender off to get to mine. In any case, the new tank works as it should. There's probably a TSB on replacing the old tank.

__________________
E70 X5 3.0si Space Grey

E36 Z3 2.5i Roadster, Sterling Gray Metallic