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Hey all, I don’t drive much in eco mode but this wknd didn’t change it - when I was driving on the interstate about 65mph I noticed my rear view mirror vibrating and could feel a vibration, only when driving 62-66 mph, anyone else notice this? It is still under warranty but I was hoping to avoid a dealership visit - this is the first time I have felt it and it only happens in ECO mode.

TIA
 

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When mine switches into 4 cylinder I can hear it, and have what I describe as a light rumble that has a little vibration. Nothing that rattles the mirror.
 

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I've noticed in mine ever since the .I'd muffler delete I can tell when it switches to 4cyl. I get a slight vibration blur in the rearview mirror

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I can hear and feel it but wouldn't call it a vibration. They drop every other cylinder in the firing order to make it theoretically as smooth as all 8 running so you must have some issue with one of these MDS cylinders.


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I can feel the vibration you describe if the engine starts to lug on an incline in ECO mode, but it usually reverts back to 8cyl fairly quickly once that happens.
 
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