10spd Hard Downshift on Light Throttle

[Bronkers]

BB 2.7 SAS w/ (properly broken-in) Ford performance tune

Searched 'downshift' and 'hard shift' and neither returned anything familiar...

When slowing to low speed (5-10mph) then accelerating lightly or sometimes when slowing to a stop or accelerating lightly from a stop (ie when the drivetrain is going from barely loaded to unloaded and vice versa), I occasionally get a pretty clunky downshift. No lights or other issues but it doesn't sound/feel healthy for trans

Anyone else?

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[Blackcat]

The 10 speed in my 2019 F150 does the same thing. It's quite annoying.

 

[Bronkers]

The 10 speed in my 2019 F150 does the same thing. It's quite annoying.

How many miles? No major issues?

 

[Blackcat]

How many miles? No major issues?

67K miles, no issues other than the hard downshift. It mostly happens when I'm in stop and go traffic.

 

[Holliday]

@Bronkers how's it going with this issue? Ever find out anything more? I have a 2021 2.7 Auto 15K miles and IMO this issue seems to be getting worse for me. The weather is getting colder here so that might have something to do with my recent perception. Did you get it checked out or do any maintenance?

 

[Robs]

@Bronkers how's it going with this issue? Ever find out anything more? I have a 2021 2.7 Auto 15K miles and IMO this issue seems to be getting worse for me. The weather is getting colder here so that might have something to do with my recent perception. Did you get it checked out or do any maintenance?

I have the same issue and another strange one drivetrain related. When accelerating in reverse the black diamond AT puts the car into what seems to be a limp mode : car sputters and lacks acceleration bucking quite a bit. I’m going in to the dealer this coming Tuesday after their failed first attempt to properly diagnose and fix the problems

 

[Lucas]

I have the same issue and another strange one drivetrain related. When accelerating in reverse the black diamond AT puts the car into what seems to be a limp mode : car sputters and lacks acceleration bucking quite a bit. I’m going in to the dealer this coming Tuesday after their failed first attempt to properly diagnose and fix the problems

Did you ever find a solution? I’m having the same issue

 

[Robs]

Did you ever find a solution? I’m having the same issue

Dealer said it’s normal behavior of the “limiter” that prevents fast reverse acceleration. I’ve never experienced that in any other make of car but then again this is my first Ford and my first 10 speed at that so who knows? At least it’s in the record should anything further happen

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