Help! Sound from right wheel well or under right dash

[TMass]

Ok; after research and some info from another forum site I put tape across the gas cap vent to the right of the door and put two small nail holes in it to let it still vent and.....the sound is gone.

[cas951]

Originally Posted by TMass

Ok; after research and some info from another forum site I put tape across the gas cap vent to the right of the door and put two small nail holes in it to let it still vent and.....the sound is gone.

Did you get any CEL?
Replacing Your 996 Fuel Line Vent Valve / Bleeder Valve - Porsche 911 Carrera & 986 Boxster - Porsche 996 Carrera (1998-2005) - Pelican Parts Technical Article

Im not sure if this is related but this could be starting to fail.

[TMass]

Thanks; I will go through it