Smell Gas Fumes
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...
Forum Discussion
Todays vehicles used closed gas tanks with a charcoal canister near the engine that provides the vent, Gasoline fumes are thus sucked into the engine, the ECC (Computer) senses this (Senses the engine is running rich) and adjusts for it so you do not loose to evaporation.
NOW: often there is a recirculation system where fuel pumped out of the tank is returned to it via some pressure regulation, This prevents vapor lock by the way.
There are lots of hoses and such involved with all this and they can crack, there is also the grommet where the filler tube enters the tank, plus tanks themselves have been known to leak (This at least would cause dripping which you should notice)
So long as the fumes do not reach the magic range of concentrations there is no danger but you should have it checked when you get home.
NOW: often there is a recirculation system where fuel pumped out of the tank is returned to it via some pressure regulation, This prevents vapor lock by the way.
There are lots of hoses and such involved with all this and they can crack, there is also the grommet where the filler tube enters the tank, plus tanks themselves have been known to leak (This at least would cause dripping which you should notice)
So long as the fumes do not reach the magic range of concentrations there is no danger but you should have it checked when you get home.
