Other Fuel System Hoses Lines/piping, And Fittings problems of the 2013 Ford Explorer

Exhaust smell in interior of vehicle. I typically drive with a/c or heat on (seasonally) and always use outside air (no re-circulation). Smell is more noticeable when idling at a stop light or otherwise not in motion. Have tried two service calls recently with no resolution. An additional related issue is an even stronger fuel smell in my garage. This is more of a pre-combustion smell. The dealer reported that this is normal as a result of the capless gas tank filter system. Definitely a health hazard for anyone entering the garage, and the smell gets into the house. These issues have persisted for the past 6-12 months, getting worse over time. To date, the dealer has no resolution for either issue. Please help.

I have noticed that my fuel tank is emitting strong hydrocarbon vapors due to the tank being pressurized without a fuel cap. It does not come with a fuel cap. I can see the possibility of these vapors in a closed space possibly causing a fire. I am a retired firefighter and I have seen this numerous times with gas cans left in garages with gas hot water heaters.