10R80 Owners - ULTIMATE M6G 10R80 Facts + Resolutions to harsh or no shift conditions

[njweatherman]

Hello yall,

After parking my Mustang for the winter between Nov. 2021 and March 2022, I've been having annoyingly to now dangerous issues with the car. To preface, I have a 2018 Mustang GT Premium with digital cluster, 55,000KM, A10 Speed Transmission, Magneride, and Active Suspension.

At first, I was driving up a windy road around 80kmph and that is the first time back in May, my transmission slipped while in sport mode (S) going up hill from whichever gear it was on to 1 then immediately back to gear. My car felt like it lost and gained power suddenly. After I pulled my car over and put it in park, the engine suddenly shut off then a few seconds later, turned itself back on. This would happen again going home into my condo and attempting to park my vehicle.




I caught it on video after putting my car from P to D back to P slowly.

While driving home on the same day as the incident above, my car suddenly slipped again this time driving around 60-70kmph without any throttle during the same day.

Today (July 31st), while driving again around the same speed again, It slipped again but with much much more frequency. Within a minute, I slipped about 4 times before my car went into limp mode with the wrench symbol showing "SEE MANUAL". I immediately pulled over and tried moving my vehicle but the shift from gear 1 to 2, It was so rough I genuinely thought my transmission was gone. I turned off my car thinking my car was a goner but after about a minute off, I turned it back on and the transmission felt fine again. It happened one more time driving home but due to the long weekend, I cannot bring this car back to Ford until Tuesday.




Luckily my girlfriend was there to film 2 out of 4 transmission slips. After the last one in the video, my car felt undriveable after that.

I've taken my car after the May incident but they found nothing (no codes) and just simply reset my TCM as I complained my transmission felt rough after that day. I will be taking my car back to Ford as I still have 1 more year of drivetrain warranty.

Has anyone gotten anything like this before?

My car (Only springs, wheels and cosmetic mods, stock everything else):

Lambert,
Sorry to hear about your troubles. I certainly have not experienced anything like what you did. Do you have Ford Pass? If so, what were the error messages? Due to the wrench light coming on, the dealership will now have diagnostic codes to work with.

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[SloWay2go]

I am sure it’s been covered, but just resetting the trans is not going to help. You need to perform a very specific drive after resetting the trans for it learn properly. If done correctly you should not have the rough shifting issues, if it’s a learning issue.

I wish I could tell the sequence properly. But, basically reset the trans, stop for 5 seconds in drive, put the car in neutral for 5, then to reverse for 5, back to neutral for 5, then to back to drive and pull away with slight Throttle keeping the engine below 1600 rpm until the car shifts into 10th. Do this 3-4 times in a row until the car shifts into 10th around 55mph. Then repeat this process at 1800rpm. If the car is continually shifting into 10th around 55mph you are good to go and can enjoy a proper transmission again.

 

[Cobra Jet]

I am sure it’s been covered, but just resetting the trans is not going to help. You need to perform a very specific drive after resetting the trans for it learn properly. If done correctly you should not have the rough shifting issues, if it’s a learning issue.

I wish I could tell the sequence properly. But, basically reset the trans, stop for 5 seconds in drive, put the car in neutral for 5, then to reverse for 5, back to neutral for 5, then to back to drive and pull away with slight Throttle keeping the engine below 1600 rpm until the car shifts into 10th. Do this 3-4 times in a row until the car shifts into 10th around 55mph. Then repeat this process at 1800rpm. If the car is continually shifting into 10th around 55mph you are good to go and can enjoy a proper transmission again.

Go to Page 1, Post 1 of this very thread. Scroll down into the sections and the relearn info is linked in there.

 

[SloWay2go]

Ah yes, perfect. I missed where it mentioned the 10th gear change at correct speeds, but the explanation is much better than mine.

This process has completely solved my a plethora of issues on my 2019 mustang and 2017 explorer sport.

Both felt like they needed alignments, indecisive shifting, hard shifts, everything. Felt like new vehicles.

 

[gadgtfreek]

Maybe they had to, but that's a goof on fords part. It should just learn. Spinning around 5 times to the left while patting your head and rubbing your stomach, then spinning around 7 times to the right while jumping on one leg and eating a banana, and then finally sacrificing a virgin, is not how the transmission should learn.

 

[sirben711]

Maybe they had to, but that's a goof on fords part. It should just learn. Spinning around 5 times to the left while patting your head and rubbing your stomach, then spinning around 7 times to the right while jumping on one leg and eating a banana, and then finally sacrificing a virgin, is not how the transmission should learn.

OR have it properly programed from the start and remove the learning altogether.

I know they say the learning is supposed to help increase life and smoothness (which I don't entirely buy) but it seems to me the learning causes a lot of problems. Sometimes it will learn wrong. If you don't do the procedure just right. Or whatever.

But I agree, if it could do it automatically with just normal driving and learning over time that would be better.

 

[Nodster]

Hey just wondering if it is normal for the 10R80 to make clicking sounds when changing between D > N > R and vice versa?

I heard it today when in a car park for the first time. I was up against a wall with my window down, so perhaps that helped with my hearing. I'm stationary in the bay in the video with foot on the brake. You can hear the clicking as I move the shifter (I don't want to say it is a clunk as it isn't that loud).

If it is meant to be silent, any ideas what could be making it before I call up the dealership?

I think I saw another member with the same issue but I can't find their video now annoyingly. They had a click coming from the rear when they were in their garage.

Thanks.

PS. I mean I'm thinking it is the trans, but could it be the valve in the exhaust causing the click? Does moving between D > N and R alter the valve on the exhaust? I had the Exhaust in "Track".

 

[sirben711]

Hey just wondering if it is normal for the 10R80 to make clicking sounds when changing between D > N > R and vice versa?

I heard it today when in a car park for the first time. I was up against a wall with my window down, so perhaps that helped with my hearing. I'm stationary in the bay in the video with foot on the brake. You can hear the clicking as I move the shifter (I don't want to say it is a clunk as it isn't that loud).

If it is meant to be silent, any ideas what could be making it before I call up the dealership?

I think I saw another member with the same issue but I can't find their video now annoyingly. They had a click coming from the rear when they were in their garage.

Thanks.

PS. I mean I'm thinking it is the trans, but could it be the valve in the exhaust causing the click? Does moving between D > N and R alter the valve on the exhaust? I had the Exhaust in "Track".

My car makes a similar noise when getting on and off the throttle. I can only hear it when the windows are down and the sound reflects against another car or wall. I also suspect that it is the transmission TC locking/unlocking or valve body. But I do not know if these noises are a problem or not.

 

[Cobra Jet]

Hey just wondering if it is normal for the 10R80 to make clicking sounds when changing between D > N > R and vice versa?

I heard it today when in a car park for the first time. I was up against a wall with my window down, so perhaps that helped with my hearing. I'm stationary in the bay in the video with foot on the brake. You can hear the clicking as I move the shifter (I don't want to say it is a clunk as it isn't that loud).

If it is meant to be silent, any ideas what could be making it before I call up the dealership?

I think I saw another member with the same issue but I can't find their video now annoyingly. They had a click coming from the rear when they were in their garage.

Thanks.

PS. I mean I'm thinking it is the trans, but could it be the valve in the exhaust causing the click? Does moving between D > N and R alter the valve on the exhaust? I had the Exhaust in "Track".

It's normal for the 10R80 to make a slight click when going through each of the Trans selections at the console shifter.

Manual mechanical engagement is still involved, it's not a "digital" selection.

 

[njweatherman]

You guys would be amazed at the different sounds this car makes when enclosed in a parking garage and/or in between two cars. Everything echoes and is a lot louder. For instance, I hear a clicking / whooosh noise when I let off the throttle. I also sometimes hear a clicking noise from underneath the car when coming to a stop. Plus, the DI tick, BBQ tick, and transmission whine will be noticeably louder.

 

[Nodster]

Thanks all. Phew. Yeah probably just the space enhancing the normal noises. I shall ignore it.

 

[gadgtfreek]

After a couple of days after adding this Lund tune to the FP Bullitt/Mach 1 parts, I'm gonna say their 10R80 scheme is the best so far (vs OEM and the FP tune). Next week will tell for sure, after a good 200 miles of mixed driving back and forth to work I'll have a more accurate idea. Their sport+ mode def seems to behave better. Normal seems to spend less time trying to get into 9 or 10 too fast which really helps in 45-55mph traffic.

And the down shifts in S+ when slowing down to turn are less violent right now, but still get the impression you are driving a manual, sounds pretty cool.

 

[ChitownStang]

After a couple of days after adding this Lund tune to the FP Bullitt/Mach 1 parts, I'm gonna say their 10R80 scheme is the best so far (vs OEM and the FP tune). Next week will tell for sure, after a good 200 miles of mixed driving back and forth to work I'll have a more accurate idea. Their sport+ mode def seems to behave better.

I've been seriously contemplating the Lund 93 tune for a while now and I'm very interested to hear your thoughts after some more miles. I'm pretty sick of the inconsistent shifting when I'm not using paddles. I also would like better throttle response.
Is yours a Lund 93 tune or E85?

 

[gadgtfreek]

I've been seriously contemplating the Lund 93 tune for a while now and I'm very interested to hear your thoughts after some more miles. I'm pretty sick of the inconsistent shifting when I'm not using paddles. I also would like better throttle response.
Is yours a Lund 93 tune or E85?

Mines 91-93 for the Bullitt/Mach 1, since I added the FP kit first. The FP tune was better shifting, but this may be the best. Don't want to crown that because we all know warts take a little while to show up.

Plus I wonder how some of these tunes work for someone are skewed by how their 10R80 acts from the factory, seems to be variance there. I had the Lund 91-93 on my 2019 manual and loved it, so I have no issue using them.

 

[njweatherman]

Mines 91-93 for the Bullitt/Mach 1, since I added the FP kit first. The FP tune was better shifting, but this may be the best. Don't want to crown that because we all know warts take a little while to show up.

Plus I wonder how some of these tunes work for someone are skewed by how their 10R80 acts from the factory, seems to be variance there. I had the Lund 91-93 on my 2019 manual and loved it, so I have no issue using them.

I'm hesitant to add a tune to my car because FORD may be able to determine if I added a tune, and then possibly deny my power-train warranty. Based on the Camera forums I was previously on, I heard Chevy was able to determine if a tune was ever added. Can FORD do that?

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