2022 transmission needs "overhaul" - just left the dealer.

[TORQUERULES]

And whether the converter is being commanded to lock or not. The pressure table would be all over the map. Far cry from a 4L60 with its relatively 'simple' pressure control. That's probably why there's nothing in the service manual for it other than the delta between commanded and measured. They probably have pressure ramping up during shifts and then backing back of or some other such control. I also think that the pressure control is PWM, so there's another point of fluctuation.

I'm basing some of this off of some of the charts in the unsealed GM 8-speed lawsuit. Even though the transmissions aren't the same, I suspect that most modern TCM's control at least somewhat similarly.

Sonnax is already on top of the problem of low line pressures as well:

https://www.sonnax.com/parts/5619-main-pressure-regulator-valve-kit


From the lawsuit as an example. (Yes, these are clutch pack pressures and not line pressures).

I monitored my pressures even with both the adaptive learning on and off and they were all over the place. It is crazy.

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[CP0861]

IMHO, the valve body is just a stop gap fix so they do not have to replace the whole transmission or rebuild the whole thing when the CDF clutch drum fails. I think they hope the valve body will mask issues long enough for the transmission to last until the owner trades or the truck goes out of warranty.

I will say that there has absolutely been a night and day difference since I got it back. It feels great. The valve body overhaul most definitely cleared up the issues I experienced. I have felt a couple of goofy shifts since, but NOTHING like before.

However, you could be right and time will tell....fortunately, I have 40K+ more miles under warranty and plan on extending it sometime soon.

 

[Yinzcity]

IMHO, the valve body is just a stop gap fix so they do not have to replace the whole transmission or rebuild the whole thing when the CDF clutch drum fails. I think they hope the valve body will mask issues long enough for the transmission to last until the owner trades or the truck goes out of warranty.

It depends on if it's the same failure, OP's truck was experiencing low pressure, which one could expect if the CDF bushing was starting to leak, but only when those areas are pressurized. A valve body fixed the issue, so that indicates that the valve body performance was at least somewhat degraded. Now whether there is still a CDF drum issue that has been masked by the new valve body, we'll have to wait and see I guess. I'm half tempted to buy a used 10r80e and upgrade the internals to the better drum and any valve body improvements that are out there. I don't know if I need the Ford IDS software to program in a new transmission/valve body through. Service procedure says yes, but I would think the adaptive learning cycle should do that too.

 

[MarioCart]

It depends on if it's the same failure, OP's truck was experiencing low pressure, which one could expect if the CDF bushing was starting to leak, but only when those areas are pressurized. A valve body fixed the issue, so that indicates that the valve body performance was at least somewhat degraded. Now whether there is still a CDF drum issue that has been masked by the new valve body, we'll have to wait and see I guess. I'm half tempted to buy a used 10r80e and upgrade the internals to the better drum and any valve body improvements that are out there. I don't know if I need the Ford IDS software to program in a new transmission/valve body through. Service procedure says yes, but I would think the adaptive learning cycle should do that too.

we could have a R5G exchange core program.
You start it with the first rebuilt tranny, send yours to the next guy, he does the upgrades and swaps it in, then sends his old one to the next and so on.....

 

[NotBudule]

we could have a R5G exchange core program.
You start it with the first rebuilt tranny, send yours to the next guy, he does the upgrades and swaps it in, then sends his old one to the next and so on.....

Maybe with some better 3rd party parts, if they even exist yet ? , that's the way Cadillac handled most of their transmission issues , send one to us, we send one back to be rebuilt ...

 

[MarioCart]

Maybe with some better 3rd party parts, if they even exist yet ? , that's the way Cadillac handled most of their transmission issues , send one to us, we send one back to be rebuilt ...

we cant trust Ford mechanics though....remember the memo?

 

[NotBudule]

we cant trust Ford mechanics though....remember the memo?

 

[ctechbob]

Maybe with some better 3rd party parts, if they even exist yet ? , that's the way Cadillac handled most of their transmission issues , send one to us, we send one back to be rebuilt ...

Sonnax has several valve body upgrades (Some are even drop-in)and Raybestos has a couple different clutch options, so the aftermarket is coming up with solutions.

https://www.sonnax.com/units/631-10r80

https://www.raybestospowertrain.com/10r80-transmission

One thing you'll notice Sonnax mention repeatedly is that valve body wear is a concern. That's what their upgraded parts are going after. Keeping the factory pistons from wearing in their bores will help with your long term success with the transmission. That is why I have made the choices I have with my fluid changes and additive use.

"Wear in the main pressure regulator bore and on the outboard spool area of the valve is common in listed GM and Ford 10-speed transmissions. This wear minimizes line pressure control resulting in delayed shift engagement, poor shift quality and burnt clutches. Wear at the inboard spool and bore can lead to converter apply issues."

"Severe wear of the TCC regulator valve bore caused by oscillation of the OE valve allows regulated secondary line and TCC signal pressure to leak to exhaust in listed Ford and GM 10-speed transmissions. This wear minimizes secondary line pressure control resulting in overheated fluid, loss of converter feed pressure, TCC release concerns, TCC slip code concerns and potential transmission control module (TCM) errors."

"TCC signal dampers are used in Ford 10R60, 10R80 and GM Gen. 1 10L80/90 transmissions to dampen or smooth out the signal fluid pressure applied from the TCC solenoid before being routed to the TCC control valve. This damper piston helps provide a smooth operation of the converter by removing the pressure spikes. When the bore and/or piston wears out, it cannot effectively dampen the variation in pressure. This can result in lube failures, TCC apply and release concerns, overheated fluid or converter and delayed engagement. "

 

[Yinzcity]

Sonnax has several valve body upgrades (Some are even drop-in)and Raybestos has a couple different clutch options, so the aftermarket is coming up with solutions.

https://www.sonnax.com/units/631-10r80

https://www.raybestospowertrain.com/10r80-transmission

One thing you'll notice Sonnax mention repeatedly is that valve body wear is a concern. That's what their upgraded parts are going after. Keeping the factory pistons from wearing in their bores will help with your long term success with the transmission. That is why I have made the choices I have with my fluid changes and additive use.

"Wear in the main pressure regulator bore and on the outboard spool area of the valve is common in listed GM and Ford 10-speed transmissions. This wear minimizes line pressure control resulting in delayed shift engagement, poor shift quality and burnt clutches. Wear at the inboard spool and bore can lead to converter apply issues."

"Severe wear of the TCC regulator valve bore caused by oscillation of the OE valve allows regulated secondary line and TCC signal pressure to leak to exhaust in listed Ford and GM 10-speed transmissions. This wear minimizes secondary line pressure control resulting in overheated fluid, loss of converter feed pressure, TCC release concerns, TCC slip code concerns and potential transmission control module (TCM) errors."

"TCC signal dampers are used in Ford 10R60, 10R80 and GM Gen. 1 10L80/90 transmissions to dampen or smooth out the signal fluid pressure applied from the TCC solenoid before being routed to the TCC control valve. This damper piston helps provide a smooth operation of the converter by removing the pressure spikes. When the bore and/or piston wears out, it cannot effectively dampen the variation in pressure. This can result in lube failures, TCC apply and release concerns, overheated fluid or converter and delayed engagement. "

I'll probably be trying the sonnax parts next spring when the weather gets warmer. It doesn't seem too hard to get the valve body out if I'm already doing a filter change.

 

[mrtimo]

I hear ya.

The good news is they sped through the test drive, reflash, test drive, adaptive learn, test drive in just 2 hours. I get the impression that they weren’t looking to NOT find the issue.

Parts are in, truck went to the shop 12/11. I have a loaner with a return date of 12/29. With that estimated time interval I have to guess they’re going to go ahead and work through the TSB in its entirety.

 

[Wandrr]

Just found this thread. I took my 22 Tremor in to have the parking brake boot replaced and I mentioned the hard shifts and hesitation I was having. I'm at 24000 miles.
Needless to say, I'm in a loaner and parts to overhaul the transmission are on order...
Looks like I joined the club.

 

[airline tech]

Just found this thread. I took my 22 Tremor in to have the parking brake boot replaced and I mentioned the hard shifts and hesitation I was having. I'm at 24000 miles.
Needless to say, I'm in a loaner and parts to overhaul the transmission are on order...
Looks like I joined the club.

Just curious- What is your build date?

This is the factor on exactly what they will replace- Valve Body or CDF Drum or combo of both.

 

[Wandrr]

Just curious- What is your build date?

This is the factor on exactly what they will replace- Valve Body or CDF Drum or combo of both.

Honestly, I don't know. I haven't taken the time to look into it. I did buy it used 13 months ago so I'm guessing an early 22 build.

 

[RedlandRanger]

Honestly, I don't know. I haven't taken the time to look into it. I did buy it used 13 months ago so I'm guessing an early 22 build.

Easy to find out - look in your door jamb at the sticker:

 

[Stevedbvik1]

Just found this thread. I took my 22 Tremor in to have the parking brake boot replaced and I mentioned the hard shifts and hesitation I was having. I'm at 24000 miles.
Needless to say, I'm in a loaner and parts to overhaul the transmission are on order...
Looks like I joined the club.

I also have a early build (Feb 22) Tremor with 15.7K that is having some symptoms. While at the dealership to have the battery replaced a week or so ago I also mentioned the transmission issues and the TSB. They set an appointment for January 16th to look at the transmission issues. We’ll see what happens.

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