One problem related to tank filler pipe and cap has been reported for the 2004 Subaru Forester. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Subaru Forester based on all problems reported for the 2004 Forester.
During gas fill-ups, unable to fill tank without continuous start/stops (~20 times for full tank). Have tried different pumps and different stations (approximately 13 fill-ups now).