How is this happening?

[George Roffe]

Peter Jackson wrote:

>Fuel is ending up in my emmissions system. There is too much to just be
>vapor or blow by.

>Symptoms: After spirited driving on hot days -
>A constant whistle tone from near filler neck at the tank end. Not from
>the fuel pump or the gas cap. It will persist anywhere from 5-25
>minutes. Stops when cap released.

OK, I'm a monkey when it comes to emissions, but it sounds like the cap is
not properly relieving built up pressure and that pressure is forcing fuel
back up into the cannister.

Or perhaps I need a banana.

George Roffe
Houston, TX
91 SE-R (well modded)
91 G20 turbo (well modded)
84 944 SCCA ITS race car under construction
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