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...
You have a fill hose around 2" and a Vent maybe 3/4". If it is loose or cracked then you would smell gas fumes. Check them both. The fill must be a fuel type hose, The vent can be a heater hose, since it does not transfer fuel. Post if Ford or Chevy for more info
I have a 99 and replaced both about 5 years back, due to cracking.