Thread: Sucking Sound
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Old 11-30-2012, 06:55 PM   #4
Sienna Red Coupe
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Join Date: Apr 2003
Location: Northern Virginia
Posts: 6,688
My Ride: Project 330xi
I'd look into your fuel tank ventilation. I suppose I might expect a small vacuum, especially if the fuel is low, but it sounds like your tank might be building up too much pressure.
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