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My 2000 Boxster S whistles, I hear it at fuel cap area, sitting still and driving. What could this be?

Tiny
RAINBOWRIDER81
  • MEMBER
  • 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 )?
Wednesday, September 28th, 2011 AT 2:15 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 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
  • 2 POSTS
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
  • MECHANIC
  • 109,747 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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