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Might be a Ti-VCT, which would not be a dropin. You can look for Mazda CX9 3.7 engines of similar vintage which are VCT and would be dropin.

Summit has been solid for me as well.

I have not used this particular aspect of his service portfolio. But members of our FB page have.

First time I have heard of this issue on a similar vehicle. But usually means the fan control module has failed, and it is time to replace the fan assembly. May be a short in the fan motor as well. Is the fan noisy? There is an SSM for this: https://drive.google.com/file/d/1G2gSkgUSAREfsUgoYPasDAuitNEkvnZX/view?usp=sharing A failing battery MAY cause this as well, but I don't see how. Worth a check tho. Your disconnection of the battery overnight also a) reset the pcm, and b) allowed the pcm to relearn the battery.

@2011edgese do you drive special operating conditions regularly or do you have a good mix of highway/city driving? Do you use a battery tender to top up regularly? Are you in the deep south? Motorcraft brand or ...? Sounds like enough deep discharge cycles are on the battery to drain in 2.5 years.

Contact Jeff Leeper at either of these 2 places: https://www.fxbgkeys.com https://www.facebook.com/fxbgkeys/ He will get it done. You don't even have to mail your (only) fob to him. Give it a go!

better off without chrome clads lol. bling 4 sure but maintenance can become a hassle as miles, grime, and curb rash pile on. the alignment looks spot-on. so, on the surface, it all looks good except for all the issues mentioned 😮 i would check the wheel bearings per tsb. if only one side is bad, replace both. oftentimes, 1 wear item will wear out another wear item (transferred stress). so the work the dealer did may be a-ok, but the result may expose something needing changed.

this one? HVAC Blower Control Switch 7T4Z-18578-A Fan Switch Edge. Without dual zone ac. $21.00 $13.28

Yes, tires are king, no matter the drive or the electronic wizardry. If the foundation is strong, you can achieve more Don't forget suspension as well. Nokian Hakkas for winter and WRGs for all weather are good choices. You could also opt to put on "truck" tires that have the 3 peak symbol on them. https://www.tirerack.com/tires/tiretech/techpage.jsp?techid=125

Motorcraft brand booster? Any lights on the dash? Do all the wheels seem to lock up or just the fronts/rears?

@Edgingage Fighting the steering wheel may be an alignment issue or a tire issue. If it started after the alignment, then maybe a second opinion is needed. Do you have the results of the alignment available to post? Clicking may have different etiologies. If your vehicle has chrome clads, they may have dirt/grime buildup that needs removal. Check the CV joints, grease may be leaking. or you may need a different circlip on the hubs. If the clicking is not continuous, it is not likely to be a serious issue. It could even be suspension related, that would be fixed with new strut mounts.

It is normal if a) they do not have an option to power down, or b) they do have an option and that option has not been activated by the owner. If the power draw is high enough, it could place a strain on the battery even during the timeout interval omar mentioned above. If the battery is already weakening, then you have a double whammy. Check with a Solar BA7 type tester to be sure.

OK, I see where Ford updated their compatibility document in August (prev doc was from July 2020). So YELLOW is basically "universal" for the Edge/MKX/Nautilus platform. https://www.fcsdchemicalsandlubricants.com/quickref/FCSD Motorcraft Yellow Antifreeze-Coolant Backward Compatability.pdf FCSD Motorcraft Yellow Antifreeze-Coolant Backward Compatability.pdf

2015 factory manual may be of some help when it comes to replacing parts https://drive.google.com/drive/u/2/folders/1wBzOTmEZvCvnzvmTI470QBGyYX60xDBh

Ron has provided enough detail above. YELLOW is NOT universal. Bottomline.