air leak code

[03highlander]

I had posted on here several weeks (or months) ago that I was getting an air leak code in the fuel system. I figured it was the gas cap and replaced it with a new one. About a week later I started getting the same code again. When I remove the gas cap, I no longer hear the song of escaping air. Anyone know what this could be? I remember a member here saying I could have a problem with the evap system. Anyone know what I should replace?
Thanks!

[Stillrunning]

Originally Posted by 03highlander

Anyone know what I should replace?

Not unless you get a psychic to answer. Evap leaks can be hard to trace that's why shops use smoke machines to help see where the leak is, maybe you should take it to a shop with a smoke machine.