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Basics: 2019 Hybrid 60k miles New tires have about 4k miles. Issue happens at any speed while accel, steady speed, or deccel. This just started happening. I get a very short and minor vibration -like running over small tight rumble strips- in an exact pattern of three. “Vibration-smooth-Vib-smooth-Vib- smooth again” w maybe a quarter of a second for each vibration and space between. It happens roughly 6-8 times over the course of an hour driving on surface streets and highway. It feels like it is coming from the front on both sides but could be anywhere. There is no noticeable sound, and I can feel it through the steering wheel the most, but haven’t had the issue long enough to notice if the whole car shakes. Again, it is the exact same pattern every time and no particular parameters for it happening. What on Earth could this be?!! (I have a beginners understanding of vehicles.. can change oil, plugs, shocks, brake pads, hoses, etc but no real knowledge of the inner workings) Any advice is greatly appreciated.

We own a 2010 FFH. We purchased it used in 2012 and it's worked great since then. Only thing we have done so far are replace the under the hood battery and the spark plugs (twice), cabin filter, and of course engine oil when it tells us to. We initially the thought the vibration was coming from a bad spark plug, so we ordered new MotorCraft ones and the vibration is still present with the ICE is running at low RPM and up to about 60mph you can feel it. We also thought bad gas or something, but we have been through a full tank and vibration issue still persists. A couple of days ago at very low speed when the brakes are applied, I hear what sounds like a rubber hose rubbing against something on the passenger side engine compartment. We are thinking engine mount on the passenger side, but not sure how to check it. Anyone have any ideas on how to check if the motor mount is bad or maybe what else would cause this issue. There are no lights coming on in the dash and the engine seems to be running fine, sound wise, it's just the vibration from the engine that causes the rearview mirror to vibrate and whatever is loose in the dashboard area, mainly that compartment door on top of the dash. Ideas or thoughts? Thank you!