Main Menu

Howling noise from gas Flap area

Fuel System

Vehicle Information: Year: 2003; Engine (type, size, modifications): 2.7L; Total Mileage: 25000; Transmission: Manual;

I have finally tracked down the cause of the howling noise. Through some experimentation, I have concluded it is caused by air rushing by or through the large (1/2" diameter) vent hole at the very front of the fuel filler compartment. I have been able to completely eliminate the noise completely by applying some electrician's plastic tape over this hole. I also have met with the Porsche Regional Service rep and my dealer tech who claim they are unaware of the problem and therefore do not have a positive fix for it. The tech attempted to resolve the problem by "kinking" the air routing hose behind the vent hole to eliminate the noise but I haven't verified that it works. Will keeping the tape over this hole compromise the vapor recovery system and cause vehicle/engine performance issues later? I have noticed that this hole has been elimited in the new 987 Boxster!

You must log in to view answers associated with technical questions. Join PCA to participate in our community.
0
No votes yet