I also seem to have this issue. However, sometimes it seems to come from the front and other times the rear. But it's not the same sound or feeling. I also have the event when coming to a stop at around 11 - 13 mph. This has been previously mentioned in the forum here. I'll probably take it to a shop I trust where they can put it on a lift and get a better look at it then I can. I still have my extended warranty.

Oh that is bad news for us! He is currently replacing the valve covers.  No catch can.  The seal is OEM, part number FL3Z 6710B.  It won't let me post a link a link to the exact oil pan he installed in December, which was off of eBay from Tom Auto Parts. I am going to try and attach the photos of it instead. It lists the following part numbers: FT4Z-6675-A,FT4Z-6675-B,FT4Z-6675-C,FT4E-6675-DB so most likely no check valve and he shouldn't have installed the gasket. Hopefully no engine damage has occurred.  Needless to say he is pretty discouraged and regretting the aftermarket purchase.  At this point would we be best off to purchase another OEM pan, or reinstall the aftermarket pan without the gasket?  He can hardly wait to get started 😢

It is weird, and you have to wonder why now after all these years?

There is no Aluminum OEM oil pan for these engines. So the replacement is aftermarket and you have to know exactly which it is. If it was designed similarly to 2018-2020 model years, then yes, the valve covers should have been replaced.    Ford did have the below warning (see the TSB in this post😞 CAUTION: Do not use the oil pan with press-in-place gasket on 2015-2017 model year vehicles as this oil pan is not equipped with a positive crankcase ventilation (PCV) check valve. Installation of this oil pan on a 2015-2017 model year vehicle will result in oil consumption which may result in engine damage.

Do you have a catch can on your engine? (aftermarket part)   Also it takes a little time for the oil level to stabilize for an accurate oil level  reading. I have seen "junk" like extra sealant, clog the oil return path and cause the PCV to SUCK oil! (Dodge 2.2L 4cyl. the smoke cleared mosquitos for miles.) BTW the silicone gobs came from it's an over use on the oil pan and valve cover gaskets.   Start with something like a https://www.jlosc.com/ then go from there. Check the level in the catch can after each smoke event, to determine where to go from there.

Still no-go. Thanks all.

If we replaced oil pan with part number FT4Z6675D but neglected to do valve covers as referenced in the TSB could that cause the car to start smoking intermittently?  My parents have a 2017 Continental with the 2.7 turbo. It has seen meticulous maintenance from them with no issues other than the terrible oil pan leak. In December my husband replaced the oil pan with an aluminum pan purchased on eBay and the OEM gasket. It's an aluminum pan part number FT4Z6675D. A week later they drove 1500 miles to Texas. On the trip my elderly dad thought the engine sounded noisy. He stopped and checked the oil and it wasn’t showing on the stick. He added oil and said it quieted down. He then began checking it and saying it was reading low about every time they fueled up so he was adding more oil. We went to visit them and my husband replaced the PCV valve, looked for leaks, put ats205 in it. Since returning home the car developed intermittent smoking issue. Husband then replaced  left side turbo since it seemed to smoke more on that side. Smoke cleared up for about 3 weeks. Car then started smoking again. Another shop checked and says oil (my dad had added again) when car is first started oil reads low and then after an hour reads over full. Their hypothesis is worn valve guides or heads. Car runs great, sometimes smokes, sometimes doesn’t.  Brian is wondering if this pan could be causing drain back issues. (Missing or covered passageways?) He did NOT replace valve covers as is referenced in the TSB posted earlier in this thread by @Haz. Could that be contributing?   Hoping to get some insight. Have you run into anything like this?   We are happy to pay you for consult. Your content has been hugely helpful to him in the past. Thanks for time! Megan

I just started getting a clunk sound when I take my foot off the gas.  I also get it when I am slowing to a stop at a couple of miles per hour.  I will put it up on stands tomorrow and check the CV joints and anything else I can wiggle on the front end. Has anyone has a similar thing happen?

Retired AF MSgt.  Morse Code operator (with 2 years in a communications center just to mix things up).  Airborne for 5 1/2 years (RC-135s).  Been to Japan, Omaha, Alaska and Hawaii.  Retired in San Antonio, TX in 2000.  Man, that was a long time ago.  My thanks to all my brothers and sisters who served.

Huh.  I never really thought about it,  but yeah, I can see myself missing that also.  I use the rear door lock probably as much or more than I use the front door lock.  It is interesting though that my '23 Explorer still has the rear door locks.  Or maybe they're back on there.  Hmm, dunno.