Mach-E Forum | Ford Mustang Mach-E Forum and News banner

New, bad sounding gear / transmission noise in a 2021 AWD Mach E

1334 Views 8 Replies 4 Participants Last post by  Skittles
28,000 miles, 2021 AWD, new gear sounds from front.

New sound coming from (I think) the front of the vehicle at a rate that's directly linked to the wheel speed but at a higher ratio, and it sounds exactly like a problem with gear meshing. It's not the stupid pedestrian speaker. It's a new sound and I know from previous careers what bad gearsets sound like. It's not awful yet, and it is getting subtly worse by the day.

Problem: If I take it to the dealership they're going to take my money and tell me nothing is wrong.
Solution A: Wait until it gets tremendously loud, then take it to the dealership and get a warranty claim.
Solution B: Wait until it fails catastrophically, then call AAA and make a warranty claim.

My fear is it's the "gear box" because of how perfectly and tightly "at ratio" the sound is to the wheels.

My preference would be for somebody who knows what they were listening for to drive it and order the part, and I could bring it back when it arrived.

Anybody have any thoughts on this? @Ford Motor Company maybe? Do you guys put magnets in the sumps? (LOL or just use the PMs in the motors to collect shavings?)

Also I wish there was a fuse for the pedestrian speaker so I could shut it up to better record the sound and video it to figure out the ratio, to better arm myself against the goons at the service department.

See less See more
1 - 5 of 9 Posts
Lubrication issue or lack there of possibly? Is there any way to check it?

There is, it's apparently the little plug at the link above 2:40 (161 seconds) but I don't have the spec, and it's probably buried underneath the plastic cover under the car, which I'm hoping doesn't have 3 quarts of fluid sloshing around on it. The driveway is pristine and there's no lights.
Update on this: The sound was getting worse, then I took the car out to run some errands, and (possibly like a fool) did lots of hard acceleration and 1-pedal stops, idea being I was going to figure out the best way to record and post the sound, right?

The sound was quite evident and then... all of a sudden.....

The bad sound went away and the motor sound is back to normal. Like nothing ever happened. Hopefully that filter on the oil pump that they talk about can catch whatever the offending debris was.

So I guess we'll just wait and see what happens. Keeping the AAA card handy.

And yes of course I've had propulsion sound off since I took delivery of the car.
Maybe for piece of mind you get the fluid changed out in the front? Seems crazy because it is supposed to be at 150k miles, but it doesn't seem like a super expensive service. And definitely will be DIY for some.
Just as suddenly as the noise disappeared, it reappeared again.
This is exactly the same sound that's happening on my car.

1 - 5 of 9 Posts