Rear Suspension noise

[SteveO2019]

Greetngs all, I have a 2019 ST, app 70,000 miles. This is my 3rd Edge, first 2 were Titaniums and both were totaled by idiot drivers. This one is by far the favorite, started making a odd knocking sound in rifght rear only when taking off and in right turn, does not do it id left turn. Anyone else experience this? Guess it will go to shop next week.

[Samurai Edge]

Sounds like something loose in the suspension.  Could have a loose / failed rear shock, which would make it simple to fix.

 

Have you looked around the area to see if you can see anything out of place; ie: loose inner fender well, shock not properly bolted in place, etc.

You can only see so much with the wheel / tire installed.

[enigma-2]

This is a highly documented pattern failure on 2019+ Ford AWD. It's probably a failing Active Torque Coupling Unit on the Rear Differential.

 

Starting with the 2919 edges, Ford changed the AWD disconnect system that frequently suffers from internal clutch pack chatter or mechanical failure.

 

When you take off or turn right  the vehicle weight transfers  and forces the rear differential to send torque to the left rear wheel while slipping the inner right wheel, which triggers a distinct clunking, knocking, or thumping sound from that rear area.

 

No recalls on the coupler, but a recall on the rdu. 

21S02 (Rear Drive Unit Lubricant Level.) Applies to certain Edges regarding a low lubricant fill level in the rear drive unit. If the fluid was below the minimum level, the axle was supposed to be replaced free of charge. You should check if your specific VIN was ever flagged for this, as running low on fluid from the factory causes the exact premature failure and clunking you are experiencing.

 

There's TSB 21-2389 for Rear Actuator Noise.

 

Check for recalls by getting your VIN and go to the NHTSA Recall Lookup Tool.

https://share.google/NTvPbYbGnMtqpp5ND

 

(Good reason to have an extended warranty.)