2022 CCD shocks ride like crap?

[bmwfrk]

One more thing, is it odd both these values are zero?

That does seem strange. Here are mine

I should say, I'm pretty new here and still testing. However I'm not sure it makes sense to edit both the Basic settings and the As-built. We don't really know how the two interact in this case.

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[J17GT]

You have to really study the forscan sheet to see where each value goes. They don't necessary all go in one "box". Some are split between cells. See below

Oh wow, did not even catch that they are not all in the same box. Hmmm... seems more to it than I thought for those tweaks.

That does seem strange. Here are mine

I should say, I'm pretty new here and still testing. However I'm not sure it makes sense to edit both the Basic settings and the As-built. We don't really know how the two interact in this case.

I'm super new to this too! Right...not sure what happens when you change both, but I at least think my stock values should be in there. Maybe I'll put them in and take the truck for a drive. I always thought the truck was SUPER floaty...

 

[24SCP]

Just take into consideration bed size since values should be different.

https://www.vdm.ford.com/content/da...owing/pdf/2024-Ford-F-150-Towing-Guide-V3.pdf

 

[J17GT]

So I put my payload value of 1721 lbs and 781 kg in those fields where my value was 0 for both and took the truck for a drive just now. MUCH IMPROVED!! No way this is placebo at all. I went into some rough parking lots nearby and the truck handled it WAY better. Way less rocking and rolling. I could even tell a difference just pulling into the driveway.

I did not try any other drive modes, but I would bet they are improved as well. I can't believe I've been driving around this way for the last two years since I got the truck new. I wonder why mine were zero? Odd...

 

[Snakebitten]

You have to really study the forscan sheet to see where each value goes. They don't necessary all go in one "box". Some are split between cells. See below

This^^^^^^^ great graphic!

You have to remind yourself that the last 2 characters in each line are ignored. (checksum)
And thus, some lines continue to the beginning of the next line.

Also note the VDM descriptors, if you look closely, sometimes repeat the same Asbuilt line multiple times. Example: (red circle)

Also I'm really curious that if you took a snapshot of the existing Asbuilt, but then made changes ONLY in the simple mode, then saved the changes...... Then would the Asbuilt values reveal the changes that simple mode actually made? I would have expected it to, but I don't know for sure.

 

[J17GT]

Also I'm really curious that if you took a snapshot of the existing Asbuilt, but then made changes ONLY in the simple mode, then saved the changes...... Then would the Asbuilt values reveal the changes that simple mode actually made? I would have expected it to, but I don't know for sure.

I sure did! No change to any of the values we've been discussing, so it must be some value(s) somewhere else in the VDM I suppose.

I think I follow the hex changes now, but I may just play with the payload setting a bit more to see how the truck changes. Truly appreciate everyone's input!

As built values with my payload weight being zero:

As built values after I put my correct payload lbs and kgs

 

[bmwfrk]

This^^^^^^^ great graphic!

You have to remind yourself that the last 2 characters in each line are ignored. (checksum)
And thus, some lines continue to the beginning of the next line.

Also note the VDM descriptors, if you look closely, sometimes repeat the same Asbuilt line multiple times. Example: (red circle)

Also I'm really curious that if you took a snapshot of the existing Asbuilt, but then made changes ONLY in the simple mode, then saved the changes...... Then would the Asbuilt values reveal the changes that simple mode actually made? I would have expected it to, but I don't know for sure.

Got a chance to go test for a few hours. Mostly at 45mph or less on some bumpy roads under construction. Here are the findings:

1st, I reset my Asbuilt to stock.

Then I began making changes in Simple mode. These change did NOT affect the Asbuilt, at least not in the section we've been working in. (See below, after i increased payload.)

I increased payload first to 1000kg, then all the way up to 10,000kg.

1000 - enough to settle the ride and reduce body roll (front to back and left to right), but not as firm as stock Sport mode. I also felt similar previously when I made the Asbuilt edits to 950kg. Not as firm as Sport mode but tamed.
2000 - feels close to Sport mode but it is all very subjective. I'm going to ride here for a while and experience some highway speeds.
10,000 - more firm, but doesn't reach full response of unplugging the CCD. At 4,000-10,000 the ride is definitely losing too much comfort.

FYI, I realized a simple way to feel a response when testing these values on an unknown scale. I would make the change, start driving forward slowly, and then come to a firm complete stop. Doing so you could easily detect the suspension response and how quickly it responded to forward body roll.

 

[J17GT]

Appreciate the additional feedback @bmwfrk . I will probably keep tweaking mine in simple mode a bit more. I'm at 780kg now, will try 1000 or 1500 or more and see how it feels.

 

[24SCP]

Just a big thank you! The pioneers paving the way testing and providing results!

 

[Snakebitten]

Fascinating gents.

I'm amazed that simple mode is independent of Asbuilt. I didn't see that coming.
Do they stack? Is one a primary influence and the other secondary?

Man, just how many parameters are in play for the CCD damping algorithm?

It would be so simple if Ford would just uncouple CCD from DSM. They do it in the Raptor.

Give us 4 or 5 suspension modes, and let us pick one just like we do for transmission shift strategy. (AKA Driver Select Mode)

 

[J17GT]

It would be so simple if Ford would just uncouple CCD from DSM. They do it in the Raptor.

Give us 4 or 5 suspension modes, and let us pick one just like we do for transmission shift strategy. (AKA Driver Select Mode)

100% agree!

 

[bmwfrk]

Testing Update! I did a bit more driving, back to back switching from stock settings, to changing the payload, to changing the Asbuilt values.

I am now confident that changing the Payload in the simple edits vs. changing the Asbuilts are not at all equal.

Changing the Payload - Creates a stiffer response to the initial impact of a bump or pot hole. While this does improve the drive some, it doesn't help as much with calming the "rebound" after the initial impact. Changes in the Payload setting have less of an affect overall (see my values in the previous post, up to "10,000 kg". Its clear in both of these cases that the weights are fictitious which has been previously discussed.

Changing the Asbuilts - Creates a stiffer response to the initial impact but also greatly reduces the rebound, or continued vibrations felt after an impact. For me these edits are far superior in ride quality. These settings are also much more sensitive to change. I increased @Snakebitten values by another 20% and achieved a much firmer ride while still being comfortable in multiple use cases.

Overall this makes sense if we are to believe Ford/Forscan guru descriptions. The Asbuilt values all relate to unsprung weight, while the Payload would be above the springs. The CCD system is definitely a dynamic algorithm that adjusts as you drive. Maybe not as advanced as the "preview" version that comes on the Expeditions but it's still taking in sensor data and adjusting response.

Here are my current values (remember the HEX values all need a '0' (zero) in front). YMMV, for reference this is on an 2023 Limited (short bed). The previous owner put on Nitto Grapplers which are no doubt much heavier than stock or street tires. My Payload is back at stock value (598 kg).

 

[Snakebitten]

Thanks for the continued efforts and testing @bmwfrk

So another 20%

That's the kind of information I've been waiting to hear.

 

[J17GT]

Great feedback @bmwfrk ! I have my payload up to 1500kg the simple way and have been driving around that way the last few days. Totally agree with your assessment. It feels stiff when it hits the initial bump, but there is still some rebound control that is lacking.

I think I have my brain wrapped around the excel sheet posted and how that translates to the FORscan updates needed (knowing they are spread across multiple lines in a few spots):

Original value of 02EE -> 0438
Original value of 020D -> 02EE

I’m going to try your settings there tomorrow and put my payload numbers back to stock. Will report back!

 

[J17GT]

I put my payload settings back to stock values and applied @bmwfrk 's settings in the as-built data this morning. Was easy to do now that my FORscan learning curve is about there.

I drove the truck around quite a bit after the changes. Bumpy roads, dips in the road, grade changes pulling in and out of parking lots etc. Simply put, it's awesome! The truck feels very planted and sure-footed so to speak. Noticeable improvement over the simple method as the suspension feels so balanced now, and SO MUCH better than stock.

For the last two years since I picked up the truck, I regretted checking the CCD box on the order form. Now I'm glad I have it! I should not have waited so long to dive into FORscan to adjust the settings.

I'm anxious to tow my enclosed car trailer this summer. I may even stiffen things up even more when towing, we'll have to see how compliant everything feels.

Thanks to all who contributed, offered advice, and shared their settings & testing!

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