Transmission shudder

[Tsuga]

A lot of these trucks never pull anything so they may never notice. I agree with you though, my 2020 Lariat never exhibited these symptoms. The burning candle I have witnessed as well and had hoped it would catch fire. To me that smell is a fuel issue.

I also think it is a fuel issue, either in the software or a bad coils that do not draw enough voltage to ignite the fuel completely. I smelled burnt match or sulfur smell a few times when the truck is underload on a big hill.

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[wayfarer556]

My truck for some months now has been experiencing a lurching that is particularly bad when attempting to downshift from 10 to 9.

This typically happens on the highway where speeds go from 70 - 85 MPH, where the engine is working harder than normal.

With every lurch, I can see my transmission temp gauge creep just a tad higher each time. Some of the lurches are almost 2 or 3 seconds of hesitation while the engine is trying to downshift and accelerate, followed by a super harsh downshift that slams my head back.

Driving to Austin from Dallas yesterday, this happened several times. Except this time, I finally got a "service engine soon" message. No CEL however.

I pulled over and pulled the code via Forscan, P07F7 (Gear 10 Incorrect Ratio). A restart caused the "service engine soon" wrench to go away.

Using Forscan, I've reset that adaptive transmission tables. Smoothed it out for now, however from keeping an eye on this thread, I have a feeling it's going to be back.

Local dealer is saying they will have to keep my truck for two weeks. Again, from reading this thread, I have 0 confidence anything is going to be fixed. I'm not really sure what I can do other than sell the truck off, or just deal with this issue until Ford comes out with a fix. I really would like to not have to sell off the truck though and deal with the hassle, or be vehicle-less for weeks on end.

 

[Ford Motor Company]

My truck for some months now has been experiencing a lurching that is particularly bad when attempting to downshift from 10 to 9.

This typically happens on the highway where speeds go from 70 - 85 MPH, where the engine is working harder than normal.

With every lurch, I can see my transmission temp gauge creep just a tad higher each time. Some of the lurches are almost 2 or 3 seconds of hesitation while the engine is trying to downshift and accelerate, followed by a super harsh downshift that slams my head back.

Driving to Austin from Dallas yesterday, this happened several times. Except this time, I finally got a "service engine soon" message. No CEL however.

I pulled over and pulled the code via Forscan, P07F7 (Gear 10 Incorrect Ratio). A restart caused the "service engine soon" wrench to go away.

Using Forscan, I've reset that adaptive transmission tables. Smoothed it out for now, however from keeping an eye on this thread, I have a feeling it's going to be back.

Local dealer is saying they will have to keep my truck for two weeks. Again, from reading this thread, I have 0 confidence anything is going to be fixed. I'm not really sure what I can do other than sell the truck off, or just deal with this issue until Ford comes out with a fix. I really would like to not have to sell off the truck though and deal with the hassle, or be vehicle-less for weeks on end.

Hi there! This doesn't sound like an experience we want you to have with your F-150. Could you please send us a PM with your VIN and the name and location of your Ford dealer? I'd be happy to see how I can assist you on my end.

 

[wayfarer556]

Hi there! This doesn't sound like an experience we want you to have with your F-150. Could you please send us a PM with your VIN and the name and location of your Ford dealer? I'd be happy to see how I can assist you on my end.

With all due respect, I'd much rather you spend your time sending us information about how the Ford Engineering team is evaluating the situation. I've already done this song and dance with the dealers last year, and my truck was out of my hands for over 40 days.

I would love to be wrong here, but my expectations about your involvement will be the following:

1. You create an internal case, assign it to my VIN and name, then ping the service manager at my local dealer.

2. Service Dealer's manager will call me, give me 10 minutes of his time, and convince me to bring in the truck. When I get the dealer, I find out that I still have to wait 2 weeks for the dealer's Transmission techs to even look at my truck. Maybe if I'm lucky, I'll get access to a rental.

3. They are going to do what most of the people here have talked about, which is to either reset the adaptive transmission tables (which anyone with Forscan can do on their own, and also what I have done), or they are going to flash to the latest firmware based on TSB-21-2407 which feedback in this thread has also shown to only be a temporary solution.

4. I'm going to have to do this over and over again until a real fix actually comes out, I sell the truck, or I lemon law it

What would give us all more confidence in the system, is if you sent us an official response from a Ford Engineer that acknowledges the issue, perhaps shed some light on what your internal investigations have revealed about the issue, and then when (or even if) we can expect a real fix on the problem. Even if the answer is "we're redesigning the transmissions and a new model will be out by 2024" would be better than what we know now, which is nothing at all.

I know you're just a customer support rep who probably isn't making a ton of money and has little if any political pull within Ford Corporate (assuming you care enough to try). I'm just trying to let you know why I'm not really interested in PMing you, unless you can show me (and everyone in this thread who's watching) why this isn't a waste of our time. And if you're limited by corporate policy (and I get it), you'd be really helping us out if you could reach out to your management and ask them to grant you some additional leeway.

If you read this far, thanks.

 

[Tsuga]

My truck for some months now has been experiencing a lurching that is particularly bad when attempting to downshift from 10 to 9.

This typically happens on the highway where speeds go from 70 - 85 MPH, where the engine is working harder than normal.

With every lurch, I can see my transmission temp gauge creep just a tad higher each time. Some of the lurches are almost 2 or 3 seconds of hesitation while the engine is trying to downshift and accelerate, followed by a super harsh downshift that slams my head back.

Driving to Austin from Dallas yesterday, this happened several times. Except this time, I finally got a "service engine soon" message. No CEL however.

I pulled over and pulled the code via Forscan, P07F7 (Gear 10 Incorrect Ratio). A restart caused the "service engine soon" wrench to go away.

Using Forscan, I've reset that adaptive transmission tables. Smoothed it out for now, however from keeping an eye on this thread, I have a feeling it's going to be back.

Local dealer is saying they will have to keep my truck for two weeks. Again, from reading this thread, I have 0 confidence anything is going to be fixed. I'm not really sure what I can do other than sell the truck off, or just deal with this issue until Ford comes out with a fix. I really would like to not have to sell off the truck though and deal with the hassle, or be vehicle-less for weeks on end.

I read that you can actually turn off the adaptive learning through either Ford IDS or FDRS. This is for the 2017 to 2020 F150s with the the 10 speed transmission. Here is a link to that thread. The first post is a video of someone on Youtube solving the transmission issue. Down further, there is a post of someone proving that it can be done.

 

[wayfarer556]

I read that you can actually turn off the adaptive learning through either Ford IDS or FDRS. This is for the 2017 to 2020 F150s with the the 10 speed transmission. Here is a link to that thread. The first post is a video of someone on Youtube solving the transmission issue. Down further, there is a post of someone proving that it can be done.

i don’t think your link works, but that is interesting.
I did some highway driving today after I reset the adaptive tables, and I couldn’t reproduce the issue. This definitely feels like software.

 

[Tsuga]

i don’t think your link works, but that is interesting.
I did some highway driving today after I reset the adaptive tables, and I couldn’t reproduce the issue. This definitely feels like software.

Sorry about that, here is the link

https://www.f150forum.com/f118/turn...arning-guy-says-his-turned-off-dealer-491723/

 

[Dadofjax]

Hi there! This doesn't sound like an experience we want you to have with your F-150. Could you please send us a PM with your VIN and the name and location of your Ford dealer? I'd be happy to see how I can assist you on my end.

See I told you guys they would be back haha!

 

[Dadofjax]

Maybe one day a lawyer who just bought a truck will stop by here and do a class action against Ford for this.

They obviously know about the issue, I'm assuming they know how to fix it but can't due to EPA standards, cost or just too lazy.

 

[Dnpbakon]

Maybe one day a lawyer who just bought a truck will stop by here and do a class action against Ford for this.

They obviously know about the issue, I'm assuming they know how to fix it but can't due to EPA standards, cost or just too lazy.

I can tell you from my own personal experience, this is in the process. @Ford Motor Company has literally been useless and I know someone with a crap ton of disposable income thats trying to making it his priority to make them answer for it. ??????

 

[Waterfowler]

See I told you guys they would be back haha!

Wish they would have jumped on mine…..and helped

 

[5thOneMaybeTheLast]

Mine is going in next week hopefully. I am worried this will be a drawn out process with no resolution. My ride quality is awful. We have a 2014 Chevy 2500 at work that is smoother and rides better than my 2021 F150. The shudder is getting really bad and the rotational vibration is there at all speeds. Very noticeable too on smooth roads at moderate speed. I hate driving the truck so much. I took a service manager for a drive and the acceleration shudder is present in gears 6 through 10. He has no inclination but wanted the vehicle for at least a "few days". This is a load condition. Hills and load cause it to be magnified. I wish after all these problems someone would have gotten some resolve. I wonder what happened to Tyler55? Im at 7600 miles. this has been occurring since roughly 1000 miles in.

 

[Dadofjax]

I'm approaching 14,500 miles and it continues to get worse. When I'm not on the highway I turn off 9 and 10, which helps a bit but kills mpg. So much for epa standards.

 

[5thOneMaybeTheLast]

Im seeing the acceleration vibration/ shudder in gears 6-10. Colder weather seems to magnify it also.

 

[Mtnman1]

My dealer said something about the transmission learns your driving habits for the first 1k miles and to come back after my truck has 1k miles on it. Not sure how much of that I believe but once it hits 1k it’s going back. It still shudders

The trans does NOT learn your driving habits.

This transmission is used in how many vehicles? Ranger, F150, SuperDuty, Mustang, Bronco. How many different engines is that?

It adapts to the vehicle and engine. Not you. Give it at LEAST 500 miles.

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