I have a 2007 2dr Rubicon. Every time I fill up to the point where the nozzle stops, my throat tube spills gas back out onto the body and ground. Sometimes it's a good bit, s cup or more. Is this common? What can I do to fix it? It's somewhat if a pain to stand with my ear to the nozzle and throat to hear when it's backing up. Plus I don't like wearing gas! Thanks for any responses.