STBEAST

Exactly the way I would do it. You did a great job on the pictures too. Thank you! I would bet the fiber gasket stays in its place if you pop the cooler straight out, or you wouldn't be able to re install the cooler as it would block the passage. Ford was hoping no one would come up with an easy solution so they could sell a new ptu when they explode right out of warranty!

On my 2024 ST adaptive yes, glare free no.

The one positive thing I get out of what you pasted is you were so lucky to find a Ford Tech that was willing to give it all he could to try a figure this out and fix it for you. Looks like he went the extra mile and gave it 100% to try and fix this issue. That in itself is a rare thing to find these days. What a nightmare to go through for you. The most interesting thing is that it only happened in sport mode. I had a 2021 Edge ST that was a nightmare from day one: I won't go into too much detail but- at about 1100 miles while out in the middle of nowhere a cooling hose came off (at the ptu cooler) causing overheat and leaving me stranded. Only to find from the dealer that there were three clamps not properly installed on the hoses from the factory. The car was never the same after that. It drove normal but the transmission developed a Slam sound randomly on acceleration from a stop. Multiple visits to the dealership and a lot of wasted time they changed some components of the transmission. The Slamming was gone but the shifting was always unpredictable and in sport mode a funny humming sound came from somewhere in the engine compartment area. In reverse there was a slight delay in response under acceleration. They drove the vehicle multiple times and said it was normal. BS. After two years and at 12000 miles (Jan 2023) I ended up trading it in for an identical 2024 St. After all the hell I had been through it wasn't a very smart decision on my part. Even though I had the extended warranty I never felt comfortable with the vehicle after an overheat. If I had been smart, I would have taken legal action and forced Ford to take the vehicle back under the California lemon law. The only reason I stuck with Ford is because I loved the Edge ST and knew it was the last year they were being made. I got the 8-year extended warranty hoping I never have to use it. I am at 6550 miles and only after driving both vehicles I notice there is a big difference in the transmission between my old 2021 and the 2024.

Seems like going 7.5k on oil changes is pushing it. I do mine at 4-4500. I am using OEM semi synthetic as recommended by the dealer. The dealer did say using full synthetic would allow me to go longer on the interval. I think the turbochargers are dependent on good clean oil. Just my thoughts.

Based on the video it sounds like something is loose on the outside or underside of the vehicle. Most likely speed/wind related. I would start by feeling around the outside and under the vehicle to see if something is loose. Also maybe sit over there and have someone else drive. It might help you pinpoint the location.

Here is some interesting information: A big thank you Haz for this! Power Transfer Unit - Description and Operation - 2.7L EcoBoost - 2022-2024 Edge Workshop Manual.pdf

This is from Ford: It applies to the 2022-2024 ST There are two different models of the PTU. The low torque PTU is paired with the 8F35, 8F40, and MMT6 transmissions. The high torque PTU is paired with the 8F57 transmission. The low torque and high torque PTUs are similar in design and operation. The ST has the 8F57 transmission

Thank you chr8990 for the pdf on the ptu/rdu. I believe the ST's use a high torque ptu ? Other than a cooler there must be some stronger internal components.

garycrist. do you have a recommendation on what fluids to use in the PTU and RDU? I know they each use a different fluid and there are some good choices including the OEM. I have heard about Redline shockproof for the PTU and not sure about the RDU. Thanks for any feedback.

From what I know is you definitely want the PTU and RDU fluid changed. I would make sure that the dealership actually knows what you are trying to get serviced. Seems like some of them are in the dark on the PTU fluid change as it is not listed as a routine service. I think the transmission could be at a later time interval but not sure. I too would like more info on this as I will be taking mine to the dealer when the time comes for me.

I can't speak for all models, but my 2024 Edge ST did come with the for/aft up/down headrests. The driver seat is still 10 way but the passenger is now 6 way adjustable. Used to be 10 way on my 2021

A very big thank you, Haz. Not the first time you have helped me out. Very much appreciated!!

Well an update- I verified the noise we are hearing is coming from that side of the vehicle where the rear cargo vent is. I verified that it is 100% speed related and most likely wind too. I don't think it is related to the seatbelt, but possible the fuel fill/door/compartment. It doesn't seem to be there when everything is cold. I also seems to be getting worse- as in happening at lower speeds. I am tempted to pull that drivers side rear cargo area trim panel off and have my wife drive while I sit back there again. I am not sure exactly how that trim panel comes? Looks pretty basic. As for my other little rattle- seems to be coming from the cargo hatch, down by the automatic locking mechanism. I will have to do more research.

Never go aftermarket. Go OEM and you won't have issues. I know this from experience.

Thank you Haz! Much appreciated. Jim

Ok I have a 2024 Edge ST. For some reason I could not find it in the digital owner's manual in the vehicle, but I will check again. Sure miss the 'old school' printed manual ! Thanks for the help

OK. I am going to use Amsoil for both. But are they different? Which one do I use in the RDU? PTU? Thanks so much guys for all your help.

Just curious to know what fluid is used in the RDU and is there a better aftermarket alternative. I plan on doing mine soon. Also the same question for the PTU. I think they are different fluids???

Thanks for the clarification. Based on that, my 2024 Edge does have hill start assist. It does not have auto hold. I am positive that my 2021 also had the same. It seems like there is some confusion regarding auto hold which is a physical button and not an option on the Edge?

I can confirm that my 2024 Edge ST has auto hold. I can't remember how to turn it on and off, but it does exist. It also was active on my 2021 Edge.

Hard to tell if it's the same as the Reddit post. But very similar for sure. The sound you recorded, and the location of the noise are the same though. Something behind that vent for sure.

I seem to think the noise could be coming from anywhere in that area, we are just hearing it through the vent. I also seem to remember that noise wasn't there a couple thousand miles ago. When I first noticed it, I would be above 70-75 mph, but over time it seems to have gotten noticeable at lower speeds. I can almost say without a doubt that you and I are having the same issue. I will keep you posted if I get any information as well. Please keep me posted, I am going try and tackle the rattle in my cargo door panel. It has become constant and very irritating, Jim

Wow! I listened to your recording and I too have the same thing happening. VERY similar sound! Interesting! I have a 2024 Edge ST with 6400 miles. At speeds above 60 MPH I hear a rattle/squeaking sound coming from the vent area highlighted. I sat back there while my girlfriend drove and it is behind that vent. WOW, same exact area. It seems to be speed related, not bumps in the road. Below 60 it seems to go away no matter how rough the road is. Almost like it is wind related. I was going to pop the vent out and see what I could find. Unless there is a TST or Service Bulletin, the dealers are pretty much worthless with this kind of thing. I also have a rattle in the right rear corner of the hatch back trim panel (right where the handle is that you would grab to close the rear door). It is present when you hit the slightest bump and is more noticeable once the car and interior are warm. I tried pushing on the panel while driving but it is inside the rear hatch door?????

It's nice that they will let you order the front set or rear instead of the whole set only. My back seats hardly ever get sat in so the Ford OEM mats will probably last the life of the car. But the fronts will need to be replaced eventually. Those look a lot nicer that the Weathertech too! Thanks for the pics.

I did a bit of research, and the Ford Premium Care Plan is by far the best, as it covers almost everything. And they will use OEM. 8 years is 5 years past the standard so it really made sense for me to do it. With all the technology and gadgets, something will have issues.