What do I have when the diffs aren't locked?

[OverBudget]

also,



this might have some useful information, at work so haven't watched it, just remembered i saw it one time scrolling youtube.

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[UncleBrad]

torque vectoring works with manual transmissions as well. heck my ford fiesta st has torque vectoring.

Torque vectoring CAN indeed work with a manual transmission in an AWD (like a Subaru) but I'm hearing not in a Bronco with a manual. In fact, what I'm hearing is that 4A in any Bronco non-manual configuration can transfer some power to the front through the transfer case with no braking intervention at all (except through ABS, if left engaged). I know this has been hashed through before in these forums, and that there is chart which details what the GOAT modes do in various configurations, but I have a memory like a goldfish...

 

[murphtron]

It’s generally not true for all models

Technically, yes, ABS has that capability. But AdvanceTrac is really only set up for emergencies, like when it detects you are fishtailing, and isn’t tuned for normal driving or off road events. Or worse yet, when you absolutely don’t want it - like trying to keep up momentum in snow or mud.

You can tell when it kicks in, it’s very noisy and clunky in the Bronco (and the AdvanceTrac light will flash)

I have heard that one pedal trail control and/or trail cruise control can use it to help maintain traction, but I can’t confirm it.

Other than turning it off in some modes, GOAT doesn’t really affect AdvanceTrac. There was a good opportunity there that Ford kinda squandered

I thought pressing and holding the traction control button a few seconds disables AdvanceTrak. Maybe not 100%, but as close as one can get?

is AdvsnceTrac 100% disabled by default in 4lo? Seems yes.

 

[battering ram]

I’ve had a ford expedition and ram pickup that both got stuck in 2” of snow w tc on in 4wd . 1 wheel front and back moving. Going no where. So I made sure to get locking diffs when I bought a Bronco. Tc is nearly worthless I’ve found over the years. It’s best to leave off and let the wheels spin and dig in when you’re in snow.

 

[dgorsett]

also,



this might have some useful information, at work so haven't watched it, just remembered i saw it one time scrolling youtube.

I'd pay good money for an 'A Trac ' button. Bronco's traction control could be valuable off road but is worthless, but I haven't tried 'trail control'. I never think of it when having an issue. And it appears that when he got aggressive and really spun tires the TC kicked in even in 4L

 

[Brian_B]

I thought pressing and holding the traction control button a few seconds disables AdvanceTrak. Maybe not 100%, but as close as one can get?

is AdvsnceTrac 100% disabled by default in 4lo? Seems yes.

There are two disables - short press and long press.
And 4Lo, and certain GOAT modes.

I couldn't tell you what the difference in capability is between all those various states though. Seems that even though it says it's off there are still some situations where it will activate, at least in certain "states"

 

[bassist]

Outside of what happens in traction control, it's my understanding that this is not true if you have a manual transmission or a lower configuration without 4A.

4A simple changes how the clutch in the transfer case works.

Braking individual wheels is part of traction control/stability control which is software driven an independent of trim level.

 

[dgorsett]

I'd pay good money for an 'A Trac ' button. Bronco's traction control could be valuable off road but is worthless, but I haven't tried 'trail control'. I never think of it when having an issue. And it appears that when he got aggressive and really spun tires the TC kicked in even in 4L

..and replying to myself: There have been a couple times when climbing steep loose rock in 4L where I thought I heard a groan from up front like TC operating, usually drivers side when I have the window down. I have dismissed it because 1. I have been known to imagine things 2. TC is supposed to be disabled in low range 3. I thought it might be something breaking and I block that kind of thing from my mind. But, who knows, maybe Ford made it subtle enough it only works gently when you really need it.

Again the only time I think I heard it was in loose rock spinning, so there's some noise anyway. Another instance on hard rock, I lost traction, no noise and had to engage locker, would have been a great time to try Trail Control, but I pushed the 'Easy' button.

 

[UncleBrad]

There are two disables - short press and long press.
And 4Lo, and certain GOAT modes.

I couldn't tell you what the difference in capability is between all those various states though. Seems that even though it says it's off there are still some situations where it will activate, at least in certain "states"

You know, at some point all this seems to get silly. We're too busy fumbling around with dials, long-pressing buttons and consulting the owners manual when we're up to our axles in snow or slogging through mud. It seems more intuitive to use what God gave us between our ears, and what we feel through the seat of our pants to get out of these situations.

And maybe a shovel if we have to.

 

[CalvinT]

It seems more intuitive to use what God gave us between our ears, and what we feel through the seat of our pants to get out of these situations.

And we'll never gain the "seat of the pants" feeling if we constantly rely on the different modes and computer. We only gain the needed intuition by making mistakes and learning from them.

We make mistakes from lack of wisdom. And we gain wisdom by making mistakes.

 

[UncleBrad]

And we'll never gain the "seat of the pants" feeling if we constantly rely on the different modes and computer. We only gain the needed intuition by making mistakes and learning from them.

We make mistakes from lack of wisdom. And we gain wisdom by making mistakes.

I'm picking up what you're putting down!

 

[OverBudget]

Torque vectoring CAN indeed work with a manual transmission in an AWD (like a Subaru) but I'm hearing not in a Bronco with a manual. In fact, what I'm hearing is that 4A in any Bronco non-manual configuration can transfer some power to the front through the transfer case with no braking intervention at all (except through ABS, if left engaged). I know this has been hashed through before in these forums, and that there is chart which details what the GOAT modes do in various configurations, but I have a memory like a goldfish...

I'm not saying this is how it works on the bronco, but I don't really think it would matter if you had 4a or not, torque vectoring works by applying brakes on the wheels that the computer sees spinning faster then the others. So even if your in 4h, i don't really see why the computer couldn't brake a wheel that's slipping to send power to the wheel that's not. Of course in 4h it would make both axles independent of each other since you cant lock both rear wheels and send power to just the front. But it shouldn't be impossible to torque vector per axle in 4h. Again, not saying the bronco does it.

 

[Owl]

Since we're on the subject... can anyone tell me how traction-control (in functionality) differs from limited-slip differential functionality? They seem to provide the same thing via different means. One with sensors and brakes (traction-control), and the other via the "limited slip" functionality of the differential.

 

[DALOLA]

Since we're on the subject... can anyone tell me how traction-control (in functionality) differs from limited-slip differential functionality? They seem to provide the same thing via different means. One with sensors and brakes (traction-control), and the other via the "limited slip" functionality of the differential.

No explanation needed, you are 100% correct. A well-tuned TC system can perform exceptionally well in challenging conditions.

 

[OverBudget]

one has less failure points then the other. aside from that they both act to achieve the same thing, transfer power to the wheel with traction.

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