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

[Nmbrsix]

Originally Posted by Need_for_speed

It occurs at any speed, any throttle position. I spent almost an hour on the road yesterday and could not nail down any pattern to the noise. It's very brief, only lasts for a second or two.

Before I replaced the regen valve, the noise occurred whenever I held a constant throttle around 3000 rpm. It would go away as soon as I changed throttle position. Seems replacing the regen valve fixed that.

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

[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.