CDF Drum Failure

[ccasanova22]

So I thought this would never happen because I have the revised transmission, but with only around 35k miles here’s what it did:

Started shifting roughly and slipping to 4K+ on upshifts

Hunted for gears going down a straight, flat road

Eventually got so hot trans fluid started coming out of the unit and coated the pan with a bad smell.

Took it to the dealer and after some diag, they say the CDF Drum has moved and the unit needs rebuilt.

What causes the CDF Drum to move on the newer 10R80 units? I thought this was corrected post 2022-2023 and I have a rebuilt unit.

Stock tire size, no mods, tires still have 75% life left (look like they still came out of the factory) so I’m not working this thing too hard.

What gives? Truck will be out of service for a while.

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[Peter949]

Yup, Ford has blindfolds on when it comes to the 10R80. Too many lawsuits and instances of failures.

 

[AzScorpion]

Wow, that's to bad this happened! This right here (along with the electronics) is why I added a 10/100,000 mile ESP to mine. I never did trust that Ford fixed this issue correctly and we're all still rolling the dice on if/when our transmissions will go ??

 

[rang19ca]

This does suck, OP. I sure hope my TSB rebuild holds up.

 

[airline tech]

What is your Build/Blend Date?

I am ASSUMING that per the TSB (Verbiage) - It stops the Procedure at the Valve Body.
and comes to this point


Sticking Valves - Main Control Valve Body

NOTE: Affected vehicles are not main control break-in capable.

1. Overhaul (clean and inspect) the main control valve body and perform the adaptive learning drive cycle. Refer to WSM, Section 307-01.

2. Does the vehicle still exhibit the condition after overhauling the main control valve body and performing an adaptive learning drive cycle?

(1). Yes, vehicles built on or before 15-Aug-2022 - proceed to CDF Clutch Cylinder Replacement Step 1.

(2). Yes, vehicles built on or after 16-Aug-2022 - this article is complete. Refer to WSM, Section 307-01 for normal diagnostics.

(3). No - repair is complete.

So, since it is not clear and precise, it leads you to assume that after Aug 16, 2022- it has the revised drum.

I tried very hard to get this answered, as my Build Date is Aug 16,2022.

Reflecting back - I do not remember details - Did they Replace the Trans or just Valve Body work previously?

 

[GhostStrykre]

to me, it’s further evidence as to why Ford went to the 10R60 on the 6th gen.

I’m not an engineer, but my uneducated guess/tinfoil hat theory is that the Ranger isn’t heavy enough for the 10R80. It needs to be worked via towing, or even a little hoonery. I wish we could see the data on 10R80 failures and how much that particular truck towed. The correlation would be telling. Just a silly guess of mine tho.

In any case, very sorry to hear of your troubles here OP. Big time bummer.

 

[Stevedbvik1]

Do you have a copy of the repair order of what they did when they “rebuilt “ your transmission? Looking at your previous posts all I could see was a valve body replacement.

 

[Msfitoy]

So I thought this would never happen because I have the revised transmission, but with only around 35k miles here’s what it did:

Started shifting roughly and slipping to 4K+ on upshifts

Hunted for gears going down a straight, flat road

Eventually got so hot trans fluid started coming out of the unit and coated the pan with a bad smell.

Took it to the dealer and after some diag, they say the CDF Drum has moved and the unit needs rebuilt.

What causes the CDF Drum to move on the newer 10R80 units? I thought this was corrected post 2022-2023 and I have a rebuilt unit.

Stock tire size, no mods, tires still have 75% life left (look like they still came out of the factory) so I’m not working this thing too hard.

What gives? Truck will be out of service for a while.

10R80 death dance:

1st sign-trans has long pause after first gear then slams violently into second...
2nd-trans hunts gears up and down at steady highway speed...
3rd-trans gets hung up in high gear at full stop...
4th-trans randomly slams in every gear up and down, fluid blows out...
5th-put a fork in it...

 

[airline tech]

What is your Build/Blend Date?

I am ASSUMING that per the TSB (Verbiage) - It stops the Procedure at the Valve Body.
and comes to this point


Sticking Valves - Main Control Valve Body

NOTE: Affected vehicles are not main control break-in capable.

1. Overhaul (clean and inspect) the main control valve body and perform the adaptive learning drive cycle. Refer to WSM, Section 307-01.

2. Does the vehicle still exhibit the condition after overhauling the main control valve body and performing an adaptive learning drive cycle?

(1). Yes, vehicles built on or before 15-Aug-2022 - proceed to CDF Clutch Cylinder Replacement Step 1.

(2). Yes, vehicles built on or after 16-Aug-2022 - this article is complete. Refer to WSM, Section 307-01 for normal diagnostics.

(3). No - repair is complete.

So, since it is not clear and precise, it leads you to assume that after Aug 16, 2022- it has the revised drum.

I tried very hard to get this answered, as my Build Date is Aug 16,2022.

Reflecting back - I do not remember details - Did they Replace the Trans or just Valve Body work previously?

To clarify. In trying to find the specific answer to the Question- On or After Aug 16,2022 - Do the Transmission's have the Updated CDF Installed. My trans P/N decal is also different as it has a different part number - I have been told that this is an engineering number that crosses over to the Service Part Number. (NB3P) Engineering vs (Service (KB3P) I think it is.
I know that the trans was put together (built) 6/20/22.
The problem is the 3 parts departments, and 2 Ford Techs cannot see the IPC Breakdown of internal parts installed in the transmission to verify what (-) Revision of the CDF is installed in my transmission and or the wording of the TSB (Am I correct or wrong) in my assumption at that decision to proceed. (split off)
So, for me I thought it would be a simple - here is all my Transmision part info, tell me what's inside - cannot be done, they only see the current revision of the part in question (not what it was manufactured with) Originally - Deep Part Number DETAIL, this was installed and hey the NEW REVISED is this.

So, my assumption is this - they had to pre-plan this change and have updated units ready to go, they had enough in stock to begin install into the trucks on Aug 16,2022.
That is the only thing that makes sense, I do wish they would Re-word or ADD to that TSB the actual reason for STOPPING and not replacing the CDF Drum under the TSB, It does not mean that it is good (It can still be failed) you just move from the TSB Guidelines over to the standard T/Shoot procedures in the Service Manual.

I know some Ford Tech has asked this very question to the Ford Warranty Dept, Engineering Dept Etc. and they have the answer to my question. But for now, its ?‍

 

[Sojourner]

We are finally at the point where I will post my question and my answer.

Q. Is there ever a post from @airline tech that I don't enjoy and/or learn from?

A. Nope. Never. Always fantastic.

There are a number of members whose posts are top-notch and AirlineTech is among them. I'm a member of a number of Ford forums and this Ranger5G forum is at the top of the list. All due to its excellent members.

Thank you. All of you!

 

[Red5ThGen]

If the updated CDF drum design can fail in exactly the same way that the original transmission did, I’m going to be very disappointed.

 

[Dr. Zaius]

If the updated CDF drum design can fail in exactly the same way that the original transmission did, I’m going to be very disappointed. trading it.

Edited to reflect my thoughts as well.

 

[ccasanova22]

Thanks for all the input, trying to gather some info as the dealer hasn’t given me much to work with

1- How do you find the build date? My door jamb sticker says 8/22

2- How to tell if fully rebuilt? Last invoice shows seals, bolts, gaskets, etc. but not sure if it was a full rebuild or just a valve body. The service advisor says I have “revised parts” from last time.

3- How long to expect the truck being out of service? Some on Reddit have been out of the truck for weeks if not a month +

thank you all!

 

[ccasanova22]

Also here is the most worn tire (right rear) which is factory original and still has a ton of tread left. So this truck has not been worked hard but it has been used for some towing and hauling.

 

[SonoranDesertranger]

Wow, that's to bad this happened! This right here (along with the electronics) is why I added a 10/100,000 mile ESP to mine. I never did trust that Ford fixed this issue correctly and we're all still rolling the dice on if/when our transmissions will go ??

Is there a recommendation for esp?

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