Thread: Hissing Sound
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  #11  
Old 02-05-2001, 11:41 AM
BlackE55
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My 560 SEL does it too. Pretty sure it's the fuel pump.

Back in the early/mid '80's, I recall both an Audi and Saab that were in my family did the same thing. Sounded like a combo. of a hiss/buzz.

The Saab had about 120k miles when we sold it and never replaced the fuel pump. Replaced about everything on the Audi!
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