I have a 2004 Winnebago Itasca Class A motorhome with about 48,000 miles. Just started a 6 week trek and stopped in Big Timber, MT after having filled up the rig about a 100 miles back. Topped it o...
It could be any of the things previously mentioned above. If you filled it really full that could have made gas get to a cracked or loose line. Try not filling it quite full for the rest of your trip until you can get it checked out.