Sloppy transmission - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 01-10-2013, 11:56 AM Thread Starter
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Unhappy Sloppy transmission

On occasion, when the truck shifts from 2-3 or 3-4 there can be a jump in rpms before the next gear is locked in, and the transmission never feels "locked in" to a gear until I hit 5th, then it is locked up good and pulls great, any advice? Would love the truck but for the way it shifts. Fluid is clear. DPF/CAT delete with DPF-R+ tuner (70hp)
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post #2 of 6 Old 01-13-2013, 07:32 AM
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Get rid of that tuner, and get something that changes the transmission calibration as well.

I have KEM tunes in my truck. I'm very happy with the way it runs.

Only problem now is I can't keep my girlfriend from taking it every chance she gets.

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post #3 of 6 Old 01-13-2013, 08:55 AM
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You 6.4 guys put out so much power its hard for a stock 5r to hold together.

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post #4 of 6 Old 01-14-2013, 11:06 AM
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At the very least you need to clear the transmission adaptive tables, it's likely learned something goofy, then re-evaluate the concern.

I ran an Edge for a little while and it shifted goofy after awhile.

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post #5 of 6 Old 01-17-2013, 05:13 PM
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How do you clear the transmission adaptive tables. I had an edge in my truck and got rid of it quickly for an SCT livewire but the damage was already done. Truck never shifted right for a year until the trans finally went last month. I gotta billet trans enroute but I'm worried about the new trans getting fried!


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post #6 of 6 Old 01-18-2013, 05:29 AM
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I am not sure with the SCT, but when you reload tunes with an H&S tuner it clears the adaptives.

Try reloading your calibration and seeing how the trans acts after that.

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2008 F-350 4x4 Off Road 6.4 Powerstroke Diesel
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The arctic trails have their secret tales that would make your blood run cold.
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