Grrrr....Woo-Woo Noise From Fuel Filler Door is Back.

[Need_for_speed]

Originally Posted by Nmbrsix

Got it. That's the scenario I have so it sounds like the regen valve is likely my culprit.

Replacement is easier than it looks, unless you have really big hands. The most challenging part is the little screw on the bracket underneath the intake. Unfortunately, it's an expensive part, but if it solves the problem, well worth the money.

This evap system is complex and expensive. Lots of valves everywhere.