Thread: 03 Boxster S...what is this sound ???
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Old 05-09-2016, 01:12 PM   #7
Smallblock454
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Join Date: Jun 2014
Location: LB, Germany
Posts: 1,507
Hello Pete,

sorry, hadn't seen your last post.

If you open the fuel tank cap while the engine is running, does the noise go away?

Regards, Markus
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