So I have a 2004 Acura TL, automatic transmission, with 68,000 miles on it. Every time I shut off my car, if you listen closely, you can hear a noise coming from my engine area making a "fart" noise. It honestly sounds like my car had a quiet, dry fart. It's not a loud noise, nor have I looked under my hood to find where the noise is coming from. But I suspect it isn't too much of a problem. Anyone heard or have the same problem?

 

do you have an aftermarket air intake?

 

No, I do not. Everything stock.