MY 2000 BOXSTER S WHISTLES, I HEAR IT AT FUEL CAP AREA, SITTING STILL AND DRIVING. WHAT COULD THIS BE?

  • Tiny
  • rainbowrider81
  • 2000 Porsche Boxster
  • 98,000 miles

Removed right fender and plastic fender well. I believe it's coming from the evaporative control system. The whistling hose connects to the full cap area ( exterior )?

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Wednesday, September 28th, 2011 AT 2:15 AM

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  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,409 posts

That is a breather for when filling the tank. Check to make sure there are no rust holes in the steel filler tube. Check to make sure the fuel cap is good.

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Wednesday, September 28th, 2011 AT 2:22 AM
  • Tiny
  • rainbowrider81
  • Member

I replaced the fuel cap due to a small crack. It did not stop the whisle. I will check the steel filler tube next. Thank you!

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Friday, September 30th, 2011 AT 3:54 AM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,409 posts

Let me know what you find. NOTE: Are you sure it what you hear isn't the fuel pump running?

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Friday, September 30th, 2011 AT 3:33 PM

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