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Ecoboost Thumping Sound

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Old 12-25-2015, 04:38 PM
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Default Ecoboost Thumping Sound

Anyone have an idea what might be causing this sound? It happens on initial take off with very little throttle - location passenger side.

Old 12-28-2015, 01:21 PM
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BOV. Usually it only does it once or twice. Here's mine back when I was in limp mode from the timing chain stretching:
Not quite the same noise. With the updated TSB it might be worth while having the dealer check the timing. Mine ran in limp mode for quite some time before it finally set a code.
Old 12-28-2015, 02:44 PM
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Thanks, Cord. I thought it might be the BOV - I haven't had time to take it the dealer yet. Good point on the timing chain. Also, I'm thinking a manifold leak as well.
Old 03-30-2019, 10:01 AM
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Originally Posted by dljiii
Thanks, Cord. I thought it might be the BOV - I haven't had time to take it the dealer yet. Good point on the timing chain. Also, I'm thinking a manifold leak as well.
Well?



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