Ford / GM 10R80

Joined
Jun 8, 2016
Messages
3,507
Location
Texas, USA
I'll start out by saying I'm a little disappointed that Ford hasn't done more for their customers considering the widespread nature of the issues with the 10r80. In my opinion, the TSB fix for these transmissions should be free, regardless of your warranty status. I've personally owned three Mustangs that experienced problems with this transmission. Thankfully the first one was a warranty software update at a mere 1,200 miles after some bad behavior and an orange wrench light, nearly became a valve body replacement, but they deemed it unnecessary. The second was a software update and a transmission flush and refill after it ran low on fluid from the factory fill and overheated. Now my 2018 convertible with all of 16,900 mi on it has experienced a valve body failure, and because it's a 2018, this was on my dime. I find myself wondering what kind of damage was done by this valve body, because they stated they found metal in the fluid.

This is a real stinker of a transmission they've unleashed on the public, hot on the heels of that disastrous DCT they also subjected people to in the Focus and Fiesta. I've officially shifted away from being somebody who can endorse Ford products. There'll never be another one in my garage when this one is gone.

PSA: stay away from these transmissions unless you know the TSB and / or the valve body have been done early in the life of the transmission

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you have the bushing issue with the cdf drum, the bushing backs into the planetary gears the metal then proceeds to eat into valves in valve body. i had it done 30k miles ago and mine shifts great. the released an updated drum in 21.
 
I'll start out by saying I'm a little disappointed that Ford hasn't done more for their customers considering the widespread nature of the issues with the 10r80. In my opinion, the TSB fix for these transmissions should be free, regardless of your warranty status. I've personally owned three Mustangs that experienced problems with this transmission. Thankfully the first one was a warranty software update at a mere 1,200 miles after some bad behavior and an orange wrench light, nearly became a valve body replacement, but they deemed it unnecessary. The second was a software update and a transmission flush and refill after it ran low on fluid from the factory fill and overheated. Now my 2018 convertible with all of 16,900 mi on it has experienced a valve body failure, and because it's a 2018, this was on my dime. I find myself wondering what kind of damage was done by this valve body, because they stated they found metal in the fluid.

This is a real stinker of a transmission they've unleashed on the public, hot on the heels of that disastrous DCT they also subjected people to in the Focus and Fiesta. I've officially shifted away from being somebody who can endorse Ford products. There'll never be another one in my garage when this one is gone.

PSA: stay away from these transmissions unless you know the TSB and / or the valve body have been done early in the life of the transmission

View attachment 244788
I am very interested to know what the differences are in the ten speed in my Silverado. After coming out of a 2020 F150- there is a night and day difference between the two ten speeds. But I really dont know what is different. Hard parts? Software? IDK. Are they are not failing like the Ford's either.
 
I am very interested to know what the differences are in the ten speed in my Silverado. After coming out of a 2020 F150- there is a night and day difference between the two ten speeds. But I really dont know what is different. Hard parts? Software? IDK. Are they are not failing like the Ford's either.

Valve bodies are certainly different. From Sonnax:
https://www.sonnax.com/tech_resourc...-gen-1-2-allison-10l1000-identification-guide

With different valve bodies, the entire shift strategy and calibration would be unique between them.
 
Shouldn’t lump GM into these trans issues . I get it GM and ford Co-develop this transmission but GM is not having these crazy issues like ford is having. Yes I am aware GM was having some issues also but nearly as bad as what ford is continuing to have
 
Shouldn’t lump GM into these trans issues . I get it GM and ford Co-develop this transmission but GM is not having these crazy issues like ford is having. Yes I am aware GM was having some issues also but nearly as bad as what ford is continuing to have
ford isnt having any more issues. the cdf drum was updated years. ago, ford did the engineering on the 10 speed, gm did the engineering of the 9 speed fwd model.
 
I’ve heard owners of 2022 models still complaining of rough shifts. When mine is (was) running right, it was comparable to our Lexus sedan - it was that good. As posted elsewhere, I didn’t get a good one and feel a little burned by it. First ford I’ve ever purchased, and let down by the dealer (management changed), so I don’t have good support for it. Mine is a 2018.

A friend of mine lost the 10r80 in this gmc. Failure mode was TC, at 120k miles. Dealer said the TC is the most common failure mode for the GM version, not the valve body or CDF drum. My friend also did zero maintenance on it, still original fluid, so there’s that.

Lubeguard Red does wonders for mine, at 1/4 dose. Mine can’t upshift from 3rd without it. With it, it does fine on most days but seems to get thrown off twice a year and acts up.
 
you have the bushing issue with the cdf drum, the bushing backs into the planetary gears the metal then proceeds to eat into valves in valve body. i had it done 30k miles ago and mine shifts great. the released an updated drum in 21.
So I can expect a recurrence of this until I get the drum replaced?
 
I'll start out by saying I'm a little disappointed that Ford hasn't done more for their customers considering the widespread nature of the issues with the 10r80. In my opinion, the TSB fix for these transmissions should be free, regardless of your warranty status. I've personally owned three Mustangs that experienced problems with this transmission. Thankfully the first one was a warranty software update at a mere 1,200 miles after some bad behavior and an orange wrench light, nearly became a valve body replacement, but they deemed it unnecessary. The second was a software update and a transmission flush and refill after it ran low on fluid from the factory fill and overheated. Now my 2018 convertible with all of 16,900 mi on it has experienced a valve body failure, and because it's a 2018, this was on my dime. I find myself wondering what kind of damage was done by this valve body, because they stated they found metal in the fluid.

This is a real stinker of a transmission they've unleashed on the public, hot on the heels of that disastrous DCT they also subjected people to in the Focus and Fiesta. I've officially shifted away from being somebody who can endorse Ford products. There'll never be another one in my garage when this one is gone.

PSA: stay away from these transmissions unless you know the TSB and / or the valve body have been done early in the life of the transmission

View attachment 244788
What is the TSB number? Does it apply to the trucks as well?
 
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