Thread: 2006 E350 engine noises
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Old 09-19-2012, 07:29 AM
Ferdman Ferdman is offline
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Location: Southeastern PA
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Keith, I presume you use Mobil 1 0W40 in your 2006 E350. If not, switch to that weight Mobil 1 and see if the tapping sound disappears.
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