Fuel Venting Issue (causing incorrect fuel reading & motor to shut off)

[LaurencetheAdventurer]

That sounds no bueno.

These EPA fuel tanks have a lot of opportunities to fail, from clogged vent screens to water getting trapped in vent kinks. I haven't dug around in mine but I suspect there are some ball check or float valves integrated in the system as well, yet another opportunity to fail. Great when it works but when it fails it seems to cause bigger issues than it's trying to cure!

If auto is not kicking off then something is preventing fuel from coming up the sensing line telling the pump handle to click off. Seems like fuel is exiting the tank from another vent line below the fill neck - there might be a float valve that is stuck open allowing this to happen.

Again just a guess since I haven't torn my system apart yet.

Thank you, will do some tracing my next trip!!