Slight hint of fuel smell

[AZ-Z71]

Ok I have been noticing this for maybe a month now, maybe a little longer. When I run the ventilation in the fresh air mode I can smell a faint smell of fuel. Doesn't appear at idle but when motoring down the road. No dash lights or codes. Doesn't appear to be there all the time either. I don't see any apparent leaks of fuel in the engine compartment.

 

Could it be maybe a a leaky vent hose to the evaporator canister?

[dr9672723]

Happens to me every time I fill up the tank. ????