helimech

Has anyone figured out what actually gets "clogged" inside the cannister that causes the problems with gas pump nozzles? After putting up with this problem for years, I read a post that details some trouble shooting. I disconnected the large line on the passengers side of the cannister and went to the gas station. I was able to fill the tank with no problems at all. With the line connected, it takes me a long time to fill the tank due to multiple shut off's at the pump nozzle. The cannister is just a plastic container with charcoal inside to absorb fumes. If you overfilled the tank and got liquid gasoline inside the cannister, does this actually destroy the charcoal and plug the lines? I haven't priced a new cannister, but I assume its expensive.