'22 OBX 4A Binding issues... Need TSB

[JawnyBronco]

Here’s a recent thread with final resolution from OP @twinturbo4vGT
https://www.bronco6g.com/forum/thre...ys-this-is-normal.101665/page-13#post-2367615

Sponsored

 

[twinturbo4vGT]

Here’s a recent thread with final resolution from OP @twinturbo4vGT
https://www.bronco6g.com/forum/thre...ys-this-is-normal.101665/page-13#post-2367615

Yes i had the transfer case replaced and it fixed the issue. Anyone saying this is normal has no idea what they're talking about.

 

[KABQ]

Yeah, I didn't do it for long and reflecting on it this morning it seemed a little more like torque steer in a FWD vehicle.

I've got some mods planned before summer wheelin' and changing the front diff fluid is on the list (AMSOIL been sitting on the shelf for a couple months already). I'll try it again after I button everything up--meaning it should all work perfectly--then get it checked out if it's still doing it.

Today, I'm replacing my AC compressor belt that decided to hit the ol' dusty trail in west Texas, lol.



Sport mode is 4A which should be capable of daily driving on asphalt/tarmac like every other AWD vehicle vice 4H, but I get it. The Bronco 4A doesn't seem to play as nice with dry conditions as a Subaru, so you could always buy one of those.

I have a tune, and if I get on it in first gear in 4A it DEFINITELY torque steers. I spent enough time with a Mazdaspeed 3 to know the feeling.

And I agree, it doesn't feel as nice as the AWD system in a Subaru. But it isn't bad, and I agree with @heavyD that it seems that people who rarely use 4A seem to be the ones having issues.

 

[Hemisfear]

Ford is the one that says it’s acceptable for all road conditions. It’s daily use durability has already been proven

@mpeugeot has over 100k and I believe he uses 4A 100% of the time if I’m not mistaken.

Respectfully Ducati, I really don't think "suitable for all conditions" means to use as a full time 4WD system, even my explanation could be interrupted as this!
I also watched a recent YouTube video which went into detail on this exact question, which I am trying to find for you.
Unless you have something more to show your position, as a former racing lead mechanic, former Ford dealership employee and lifelong 4x4'er, I vehemently stand by my opinion and I don't think telling people that it can be used in this manor is the responsible thing to do...

 

[Hemisfear]

4A Vs 2WD - What These Modes Mean should you activate them for normal driving?! - YouTube

 

[crenca]

4A Vs 2WD - What These Modes Mean should you activate them for normal driving?! - YouTube

It is always heartening to see rehabilitation at work such as this video from a prison

Seriously, this guys argument boils down to "use 2wd it's common sense" which adds nothing to the discussion. I see no indication he understands the difference between a clutch pack and Torsen diff 4wd/awd system and his one effort at an example (rear end breaking traction on a dry surface) is actually a good example for when you would want to be in 4A, not an argument against it.

I think there might be good reasons to not be in 4A on pavement in dry conditions regularly, but this video does not present them...

 

[Squatch]

Respectfully Ducati, I really don't think "suitable for all conditions" means to use as a full time 4WD system, even my explanation could be interrupted as this!
I also watched a recent YouTube video which went into detail on this exact question, which I am trying to find for you.
Unless you have something more to show your position, as a former racing lead mechanic, former Ford dealership employee and lifelong 4x4'er, I vehemently stand by my opinion and I don't think telling people that it can be used in this manor is the responsible thing to do...

Respectfully, as well, why is 4A the default by Ford for Sport mode? I don't really know any other vehicle where Sport mode isn't street legal and meant for dry tarmac. Some cars have track mode and you could say Baja implies off-road only, but this is Sport. If Ford made it so poorly that it shouldn't be used on the street, then it should have some disclaimer as off-road use only and certainly should be called something else.

Also, 4A and AWD, etc., across makes and models don't follow real rules... they're more like guidelines... cue Pirates of the Caribbean.

 

[Hemisfear]

Respectfully, as well, why is 4A the default by Ford for Sport mode? I don't really know any other vehicle where Sport mode isn't street legal and meant for dry tarmac. Some cars have track mode and you could say Baja implies off-road only, but this is Sport. If Ford made it so poorly that it shouldn't be used on the street, then it should have some disclaimer as off-road use only and certainly should be called something else.

Also, 4A and AWD, etc., across makes and models don't follow real rules... they're more like guidelines... cue Pirates of the Caribbean.

I really don't think a disclaimer is warranted, how about use common sense?
What part of "Part Time" is not clear?
I would say sport mode is also a limited use function, to be used when needed/wanted, again, I've never thought it should or would be used full time. (I almost always switch to 2WD when I go into sport mode because "RACECAR" lol)

 

[Hemisfear]

It is always heartening to see rehabilitation at work such as this video from a prison

Seriously, this guys argument boils down to "use 2wd it's common sense" which adds nothing to the discussion. I see no indication he understands the difference between a clutch pack and Torsen diff 4wd/awd system and his one effort at an example (rear end breaking traction on a dry surface) is actually a good example for when you would want to be in 4A, not an argument against it.

I think there might be good reasons to not be in 4A on pavement in dry conditions regularly, but this video does not present them...

I guess you are correct if the use of common sense is optional!

 

[Ducati1098]

Respectfully Ducati, I really don't think "suitable for all conditions" means to use as a full time 4WD system, even my explanation could be interrupted as this!
I also watched a recent YouTube video which went into detail on this exact question, which I am trying to find for you.
Unless you have something more to show your position, as a former racing lead mechanic, former Ford dealership employee and lifelong 4x4'er, I vehemently stand by my opinion and I don't think telling people that it can be used in this manor is the responsible thing to do...

This has been proven so many different times on this forum, I honestly can't believe why anyone would still fail to see the clear evidence that it was designed to be used at any time or all the time.

I already knew exactly which video you're referring to before you even posted it lol, and it's nothing but misinformation from someone that doesn't understand how the system works. He posted that video after claiming that 4A ruined a transfer case, when it was clear as day that the thing had been flat towed incorrectly. He literally is laughed at all the time by thousands of members of a Ford technician forum on FB because he's so uneducated.

Bottom line, my position is the same as Ford's position. You can try and interrupt it or believe whatever you'd like, but its still incorrect

(4A) OPERATION

When (4A) is selected on the ATCM , the 4WD system provides electronically controlled four-wheel drive with power delivered to all four wheels, as required, for increased traction. (4A) is appropriate for all on-road driving conditions, such as dry road surfaces, wet pavement, light snow or gravel. Shifts from (2H) or (4H) to (4A) can be made at any speed. In (4A):

• The ATCM sends a (4A) mode status to the AWD module via the GWM .
• The shift motor positions the ball ramp device at the clutch kiss point when driving conditions do not require 4WD.
• The shift motor positions the ball ramp device to apply the clutch when wheel slip is anticipated or detected.
• The reduction sleeve connects the input shaft and output shaft
• (4A) is displayed in the message center.

 

[crenca]

how about use common sense?

Your keep saying that, but what is very very common are clutch pack awd systems sending torque to both axles variably (ie. "part time") based on computer control. Dozens of such systems spread across hundreds of different models accumulating billions and billions of miles a year, all with exceptional reliability and longevity.

"Common" is an argument for, not against setting the Bronco to 4A and leaving it there for the lifetime of the vehicle...

 

[Hemisfear]

This has been proven so many different times on this forum, I honestly can't believe why anyone would still fail to see the clear evidence that it was designed to be used at any time or all the time.

I already knew exactly which video you're referring to before you even posted it lol, and it's nothing but misinformation from someone that doesn't understand how the system works. He posted that video after claiming that 4A ruined a transfer case, when it was clear as day that the thing had been flat towed incorrectly. He literally is laughed at all the time by thousands of members of a Ford technician forum on FB because he's so uneducated.

Bottom line, my position is the same as Ford's position. You can try and interrupt it or believe whatever you'd like, but its still incorrect

(4A) OPERATION

When (4A) is selected on the ATCM , the 4WD system provides electronically controlled four-wheel drive with power delivered to all four wheels, as required, for increased traction. (4A) is appropriate for all on-road driving conditions, such as dry road surfaces, wet pavement, light snow or gravel. Shifts from (2H) or (4H) to (4A) can be made at any speed. In (4A):

• The ATCM sends a (4A) mode status to the AWD module via the GWM .
• The shift motor positions the ball ramp device at the clutch kiss point when driving conditions do not require 4WD.
• The shift motor positions the ball ramp device to apply the clutch when wheel slip is anticipated or detected.
• The reduction sleeve connects the input shaft and output shaft
• (4A) is displayed in the message center.

Only to be equaled by the number of posts regarding issues with their transfer case! lol
Why even have 2WD then?
Ford's position, really?
You are no more Ford than I am...
Ford are the ones who call it PART TIME?!
Again, show me something official, not an explanation of how it works, what is that supposed to bring to the discussion?

 

[Squatch]

The big issue is that I wanna launch it in Sport mode (4A) with the FP tune and the front tires get all squirrelly with torque steer instead of getting a good launch like a WRX or something.

 

[Hemisfear]

Your keep saying that, but what is very very common are clutch pack awd systems sending torque to both axles variably (ie. "part time") based on computer control. Dozens of such systems spread across hundreds of different models accumulating billions and billions of miles a year, all with exceptional reliability and longevity.

"Common" is an argument for, not against setting the Bronco to 4A and leaving it there for the lifetime of the vehicle...

You are confusing full and part time systems, I am not familiar with billions of miles on this system!
"The 4A transfer case came out in the 2017 raptor and was supposedly the first of its kind"

 

[userdude]

Respectfully Ducati, I really don't think "suitable for all conditions" means to use as a full time 4WD system, even my explanation could be interrupted as this!
I also watched a recent YouTube video which went into detail on this exact question, which I am trying to find for you.
Unless you have something more to show your position, as a former racing lead mechanic, former Ford dealership employee and lifelong 4x4'er, I vehemently stand by my opinion and I don't think telling people that it can be used in this manor is the responsible thing to do...

I mean, vehement? We got trucks that several of us ram into rocks and drive at high speed over rippled earth. Blowing out a transfer case, meh. Wearing out a clutch pad, wutevs.

It's possible for Ducati to hold both ideas: Ford says it's fine, and that he himself doesn't do use it full time (I think I recall on a thread both he and Flip said for themselves they didn't see the need vis a vis the cost). BigMeatsBronco laffed at the problem of simply wearing out a clutch pad, since the clutch pack isn't prohibitively expensive.

So take a breath, it's gonna be alright. No transfer cases were harmed in the expression of these opinions.

Sponsored