986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Grrrr....Woo-Woo Noise From Fuel Filler Door is Back.

Need_for_speed · 06-12-2017, 10:19 AM

I'm bumping this to see if any of you kind folks can give me any direction as to what to try next.

2000 base 2.7L with 69000 miles.

Issue: "Blowing bottle" noise from fuel fill area. Occurs with light acceleration. No CEL or codes.

I've done the following:
Replaced regeneration valve on intake manifold.
Replaced the two valves inside the passenger fender area (behind headlight).
Replaced gas cap.

I'm considering the following:
Replace the valve on the carbon canister 996-605-201-01
Replace the valve on the fuel filler neck 996-201-143-01
Replace the vent tube 996-201-259-05
Replace carbon canister (do they go bad?)
Replace the valve housing in the front right fender (996-201-231-01)

What else could fail and cause the noise? Am I overlooking something? I cannot abide the noise...

06-12-2017, 10:19 AM	#11
Need_for_speed Registered User Join Date: Feb 2016 Location: New England Posts: 296	I'm bumping this to see if any of you kind folks can give me any direction as to what to try next. 2000 base 2.7L with 69000 miles. Issue: "Blowing bottle" noise from fuel fill area. Occurs with light acceleration. No CEL or codes. I've done the following: Replaced regeneration valve on intake manifold. Replaced the two valves inside the passenger fender area (behind headlight). Replaced gas cap. I'm considering the following: Replace the valve on the carbon canister 996-605-201-01 Replace the valve on the fuel filler neck 996-201-143-01 Replace the vent tube 996-201-259-05 Replace carbon canister (do they go bad?) Replace the valve housing in the front right fender (996-201-231-01) What else could fail and cause the noise? Am I overlooking something? I cannot abide the noise...