2023 Ford Explorer ST vibration between 35-50 mph, less than 5000 miles, causes?

[mwingnut7]

New explorer owner. Love the suv but working thru some “gremlins” now. Both struts replaced at 2000 miles, leaking rear passenger shock replaced at 3,000 miles, now experiencing a vibration when starting out in the morning. Starts at 35mph to about 50mph which I can feel thru the steering wheel, gas pedal and drivers seat (assuming other seats too). Appears to go away after 5-10mins of driving.

initially thought a bad tire (flat spot) or the foam insert in the tire? Then thought of a drive shaft being out of balance and also saw a bulletin on some bad cv joints, but since it appears to go away after the car “warms” up I go back to a bad tire.

Does anyone have any experience or thoughts before I make an appointment with the dealership under warranty? Thank you in advance!

 

[enphor]

Does it happen on/off throttle. How about rolling in neutral? Different weather temps affect it?

 

[mwingnut7]

To answer your questions…

happens both on and off throttle

not sure on neutral

since temps have gotten higher here in NYS, the vibration seems to have subsided somewhat. So, it would be worse in colder temps (below 40)

let me know

 

[enphor]

i'd get it up to vibration speed, feel the vibration, then off gas and switch to neutral. If it goes away instantly you know its the power-train. If it persists maybe something in the suspension.

 

[mwingnut7]

Thank you!