17xlsilver

What did that feel like in the car? And how easy/hard was it to get the dealer to feel it and do something about it?

Im burnt out on dealer trips just to go through “trip 1 It’s your tires….trip 2 ok they balanced …. It’s empty truck bed! ….trip 3 you sure you did your brakes correctly?…..trip 4 your aftermarket sway bar something something ….trip 5 please go away your almost at 60,000 miles” this stuff kills me and it’s like a part time job.

RubyRedX3

In my Mustang it was felt throughout the center console and shifter thru to the seat. They hooked up a special machine that found the fourth order vibration that was traced back to the differential. the first repair replaced the ring and pinion. The second time they replaced the entire differential as they surmised that it was a bad machining job in the case that caused excessive vibration in the ring and pinion.

https://skill-lync.com/blogs/nvh-basic-powertrain

17xlsilver

Any specific speeds or all the time?

acdii

Well, pretty easy to see if it is the rear driveline. Put the axle on jack stands, block the front tires and spin them up to speed. Part of the vibrations on the Red Devil were due to pinion angles. The vibes would greatly diminish with 1200 pounds in the bed, so they shimmed it, then the only vibes left were the tires. They couldn't fix the EPAS though, Ford refused to replace it even though it caused a lot of wander and pull.

RubyRedX3

17xsilver. It started at around 45-50 MPH all the way up to around 65-70 mph. It was enough to cause discomfort when I rested my arm on the console or hand on the shifter for any length of time.

nbarb

I am having this issue on a 2019. I am about to take it in. Has the issue come back?