ADDING A RETURN LINE TO AN OEM NON-EVAP FUEL SYSTEM QUESTION

If there isn't, the hose or pipe could be run through a grommet in the floor. The pipe would have a 90 degree bend inside the filler tube and stick out of the tube on the tank end so as not to be spraying constantly on the grommet but into the tank. I'd look for the sender with the extra nipple first.