Larz

Check underneath the car, rear passenger driver's side. There you should find the fuel pump and the fuel filter. You will have to remove a black covering around them - very easy.

The sound of air escaping could be a little like a buzzing? The sound could be the fuel pump. From what I have read on this site the pump can make noise for a long time before it finally goes. Also, check here for leaks since you are stating that you have a gas smell. The lines here over time can become cracked. This is a good place to start.

Iggy

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Insanity: doing the same thing over and over again and expecting different results.

2006 - Suzuki Gran Vitara (2.0 L fully equipped) Like this car so far except for trying to put on the seatbelt.
1988 - 190e - 2.3L - 172K miles (It now belongs to the exwife)
1999 - Chevy Blazer LS Fully Equiped - killed it June 2006
2001 - Honda Civic EX - 68K miles (sold June 2004)
1963 - 220S - Dual Carb 6 cyl. (sold)
1994 - Yamaha WaveRaider (fun to ride)