4A acting like 4H, binding while turning on dry pavement

[SamIAm66]

Because they presume when you're in Sport mode you're going to be doing aggressive things where having added traction/drive with the front wheels would be helpful. Dry pavement isn't really that case, and even when I DO put our Bronco (or the wife's expedition, for that matter) in Sport mode, I manually switch it back OUT of 4A...because I am generally trying to get into traffic on a crowded road, not dealing with a slick surface.

Don't get me wrong, I LOVE 4A and sometimes wish my truck had it...but I still don't personally feel it is meant for dry pavement.

I agree with all of this, and do the same when using sport mode, switch to 2H. (There was slight sarcasm in my question). You would think Sport would default to 2H as I think most folks use it as you stated, hwy driving for acceleration.

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[userdude]

I would guess the clutch pack needs to be replaced. Hopefully not a bigger trans problem.

 

[Thor_1]

You really shouldn’t

So then you have to ask why does Sport mode default to 4A??

So issues like the OP is having and repairs are needed.

 

[Techun]

I would guess the clutch pack needs to be replaced. Hopefully not a bigger trans problem.

If anything, the clutch mechanism is working too well

While you "can" use 4a on dry pavement, I would take care to avoid tight, low speed turns in it because it will be locked.

 

[crenca]

then put it back in 4A, backed out and experienced the same binding backing out which makes sense since it was the same tight turn but in reverse after I released the tension. Once again switched to 2H to release tension.

This is interesting. Ford's 4A (which is just a modern AWD system/design) does not engage the front axle in reverse, so this is indicative that the system state is in fact in "4H". Assuming your not engageing lockers, possibly by having your Bronco in a "GOAT" mode, then you need to have a mechanic investigate I think.

Don't get me wrong, I LOVE 4A and sometimes wish my truck had it...but I still don't personally feel it is meant for dry pavement.

It is designed for dry pavement (and wet, and snow, etc.) like all other modern AWD systems from any number of manufactures.

While you "can" use 4a on dry pavement, I would take care to avoid tight, low speed turns in it because it will be locked.

It won't. The computer "fades" (to choose a word) how much torque is applied to the front axle based on steering angle as well as a number of other factors including speed, throttle position, gear the transmission is in, etc.

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