Ok, so long story short, i've been having problems lately with my S4 not wanting to start after refueling. Happened once last year and now it's become much more frequent. Once the car sits 20 minutes or so it fires up slowly but it always restarts.

So i did some searching and came up with this: Car won't start after refueling.

The symptoms and diagnosis sound spot on with my troubles, so i'm going to change this valve and go from there. Does anyone know where this is on our cars? Anybody changed one?

Thanks in advance,
Ben