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2016 EcoBoost - Auto
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232 Posts
I changed out my trans mount and my ocassional "thunk" from R to D was severely reduced. As far as shifting into D and the lunge you describe, come to a complete stop, hold the shifter button down firmly while applying good pressure on the brake, then bring it into D or S. I've also seen many people going from R to D with the car still rolling:rolleyes:. Not saying that's what you're doing;)
 

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2018 Mustang 2.3 10R80
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Had a similar issue. At about 105k (yes that's right) after I started using my sport mode, I started having the following issues.
Super hard launch from Park to Drive.
Rough shifts from 1st to 2nd on acceleration and deceleration.
Researched a bit and came to the same assumption as most, transmission adaptive tables were causing the hard shifts.
Dealer (Griffith Ford San Marcos,Tx) wanted to charge me 140 just to clear the tables. This was after they argued with me that there was no way trans adaptive table could cause hard shifts.
Anyway, I downloaded forscan, bought their recommended obdlink tool (53 on amazon) and cleared the tables.
No issues what so ever for about 600 miles now. Trans shifts like butter now.
Definently recommend taking the path above if youre having similar issues.
Even if that doesnt solve your problem, you still end up with a pretty good diagnostic tool you can use in the future.
 

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I recently purchased a new 2018 ecoboost. I’ve been having issues with it when I accelerate and coming to stops. It tends to be lagging and hesitation at acceleration. And when I come to a stop the car lunges forward as it down shifts from gear 3 to 2 to 1. Almost shoots forward into the car in front of me. Not safe. And something I’ve never felt coming to a stop in a car. I brought it to Ford and they ran tests. Said everything is normal. Anyone else have anything similar with their 2018-2019 ecoboost?
I had the same issue with my 2018 eco boost as well. We took the vehicle to the dealership. They fixed the vehicle by reprogramming the adaptive learning system that is attached to the transmission. Easy fix.
 

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I had forgot to ask if any of the service/dealership personnel were able to drive the 18 EB and see for themselves before applying the "fix"?
 

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I recently purchased a new 2018 ecoboost. I’ve been having issues with it when I accelerate and coming to stops. It tends to be lagging and hesitation at acceleration. And when I come to a stop the car lunges forward as it down shifts from gear 3 to 2 to 1. Almost shoots forward into the car in front of me. Not safe. And something I’ve never felt coming to a stop in a car. I brought it to Ford and they ran tests. Said everything is normal. Anyone else have anything similar with their 2018-2019 ecoboost?
Yup I had this same issue I thought it was nothing and tuned my car with a custom tune my tuner also messed with the transmission timing and the car shifted way smoother it no longer jumped forward while trying to slow down at high speed it was way better. But tuning your car and trans. Should be done with caution you don’t want to get the boom 💥 with the eco.
 

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I recently purchased a new 2018 ecoboost. I’ve been having issues with it when I accelerate and coming to stops. It tends to be lagging and hesitation at acceleration. And when I come to a stop the car lunges forward as it down shifts from gear 3 to 2 to 1. Almost shoots forward into the car in front of me. Not safe. And something I’ve never felt coming to a stop in a car. I brought it to Ford and they ran tests. Said everything is normal. Anyone else have anything similar with their 2018-2019 ecoboost?
 

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Yup I had this same issue I thought it was nothing and tuned my car with a custom tune my tuner also messed with the transmission timing and the car shifted way smoother it no longer jumped forward while trying to slow down at high speed it was way better. But tuning your car and trans. Should be done with caution you don’t want to get the boom 💥 with the eco.
I have a 2018 Mustang Ecoboost, and I’ve had the same problem. Took it to one dealer and was told nothing was wrong, that’s just the way that transmission works. I just got it back from another dealer because of that issue, and they cleared the ‘Adaptive Transmission Tables’, and it shifts better than it has since the day I picked it up. Smooth as silk. My tech told me that the transmission adapts to the way you drive, and for 200 miles it will be adapting to you. Have those tables cleared by your dealer and the issue should resolve itself. Good luck. I am thrilled with my results.
 

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I have a 2018 Ecoboost which had the same problem. I took it to the dealer, they did some electronic work (software update, I believe). It fixed the problem. The transmission is totally smooth while downshifting, changing from P,R,N,D, and without any clunks. The lurching and clunky downshifts are NOT normal. Mine was fixed.
hey Nikujaga
I’ve the same issue and i took it to the dealer they fix it by doing software program
But again these days the issue came back.
 

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I recently purchased a new 2018 ecoboost. I’ve been having issues with it when I accelerate and coming to stops. It tends to be lagging and hesitation at acceleration. And when I come to a stop the car lunges forward as it down shifts from gear 3 to 2 to 1. Almost shoots forward into the car in front of me. Not safe. And something I’ve never felt coming to a stop in a car. I brought it to Ford and they ran tests. Said everything is normal. Anyone else have anything similar with their 2018-2019 ecoboost?
Once I flashed the car with Cobb Accessport Stage 1 or 2 it got rid of this issue. I have a 2018 as well. It rides between gears so much more smoothly now. No jumping forward!
 
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