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      01-23-2013, 10:18 PM   #2
Sindarin
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Drives: 135i
Join Date: Jul 2012
Location: USA

Posts: 51
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Fuel tank vent valve/purge valve. It operates on a duty cycle, thus the ticking, and generally purges at idle. That is why everyone is saying the noise goes away when raising engine rpm.

Normal.
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