OP here and update: We just had ice/snow in Texas and I was able to play around with the TC and 4A.
1. I think the TC is different in this car as it doesn't jump/jerk, it simply lowers power drastically but it's smooth feeling and causes me to believe it's not working.
2. 4A worked very good...
With respect, I believe you're mistaken about the 4A in Normal mode. On the Expy, and to my surprise, 4wd is always engaged in 4a, its a matter of how much output is sent to the front. 4A in the Expy does NOT MEAN "2WD until needed" then kicks in the 4WD. You can see this on the offroad screen...
I made a right turn on newly damp roads yesterday and almost lost the rear end. The traction light blinked but I never "felt" the car correct itself. All of my other cars, you can easily feel when the TC kicks in.. Not in my 2019 Expy. Was it even working? Is this like the 4A that operates...
Thanks, maybe I have always been wrong about what 4A really meant then. I thought it literally meant 2H until slippage is detected then it immediate activates the front axle. Now I'm learning there was always some power being sent to the front.
But if it's considered "smart" I don't understand...
I understand it's to prevent wheel slip but that's never an issue at interstate speeds.. I might understand only at launch. The point is that 4x4 is constantly locked-in in 4A where I don't think that's the case with other brands.
Here's what really bothers me about this mode though. When you put it in SPORT mode it automatically shifts to 4A sending power to the front EVEN ON THE INTERSTATE. To me, SPORT mode should just adjust the transmission or maybe even fuel to give more power/sportier feel. But Sport is actually...
Interesting and thanks for the feedback. I guess that's why it defaults to 2H. I've always driven in 4A in my other cars and Fords as they applied zero power to the front wheels unless the rear wheels slipped.
When you're on the "Power Distribution" screen you can see which wheels are getting power. Obviously, on 2H only the rear wheels get power. But, on 4A, I've noticed all four wheels get power ALL THE TIME, NOT JUST WHEN NEEDED - which is what most 4A's do. Is this really the case? If so, why...
Great info.. I have a 2019 Max and just ordered the 2020-2022 model rear cargo liner based on info above saying it will fit. I tried the Husky liner and it appears to be made to bend but it does NOT fit the bend! Repeat, the Husky liner will NOT fold in the right place for a 2019 expedition...
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