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Occasional 3rd Gear Down Shift Delayed Engagement

Spang550

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Quick 10R80 quirk question. My Mach 1s at 32k miles. Not sure if this is new or is just something I am only noticing now, but I am getting an occasional shift delay where I’ll stab and stomp the throttle the car will down shift to 3rd and hold around 5k rpm for about a second before it takes off like normal. It happened once tonight organically and I did some stab and stomps a bunch of times to try and replicate it and after about 6 or 8 tries I got it to do it again. the first time it did it I had been cruising at 60 for a minute then stab and stomped it. The time I made it do it I manually upshifted into 10th from 6th, clicked the car into drive then back to sport and tried to take off 2 or 3 seconds later.
I am gonna run it by my shop but is this likely active learning weirdness, trans fluid needs a change or did I maybe draw the short straw in regards to the valve body?
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S550HPP

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Reset with for scan or disconnect battery for a few min do BMS reset after.

My car does it and have had it tuned out now just doing it when I floor it takes a frustrating forever to down shift when need it most - in D Normal. Will be tuned out soon.

IMO trans tune is best money spent before any other mods totally alters the character of car to what ever you want.
 

ZXMustang

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Reset with for scan or disconnect battery for a few min do BMS reset after.

My car does it and have had it tuned out now just doing it when I floor it takes a frustrating forever to down shift when need it most - in D Normal. Will be tuned out soon.

IMO trans tune is best money spent before any other mods totally alters the character of car to what ever you want.
Yes sir. I can get them shifting like a DCT. It’s all just changing OSS in many tables as well at TCC slip.
 

S550HPP

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I went super conservative with mine just eliminating excessive delays, slightly quicker engagement, no short shifting in D, increases sensitivity to medium throttle demand down shift reaction time ...it's still very smooth when wanted and quick & smooth in S mode.

Drive like a high dollar luxury sport euro car now.
 
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Spang550

Spang550

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Reset with for scan or disconnect battery for a few min do BMS reset after.

My car does it and have had it tuned out now just doing it when I floor it takes a frustrating forever to down shift when need it most - in D Normal. Will be tuned out soon.

IMO trans tune is best money spent before any other mods totally alters the character of car to what ever you want.
Interesting, it’s only done it for me in sport plus. I tried making it do it in normal and it would t do it.
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