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Thread: Tightening up 2-3 shift, 6F50/6R80

  1. #1

    Tightening up 2-3 shift, 6F50/6R80

    Can anyone give some advice on tightening up the 2-3 shift at WOT on a 6F50, same stategy as the 6R80?

    Part throttle is great, but at higher/WOT throttle it is a pretty slow shift.


    Looks like the adaptive learning may have gotten caught up.
    Last edited by Ntrain2k; 07-12-2019 at 12:37 PM.

  2. #2
    Potential Tuner
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    what is the shift pressure in the higher trqe area I am only familiar with the 6r80

  3. #3
    Quote Originally Posted by Blueford5 View Post
    what is the shift pressure in the higher trqe area I am only familiar with the 6r80
    W0Fyaui.png

  4. #4
    You will have to lower the adaptive slip times, otherwise it will soften the shift over time

  5. #5
    Senior Tuner metroplex's Avatar
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    Your Explorer doesn't have much torque, so you can try to increase the shift pressure at WOT starting around 200 ft-lb. What you have would work fine with the Explorer Sport or any EcoBoost V6.

  6. #6
    Quote Originally Posted by metroplex View Post
    Your Explorer doesn't have much torque, so you can try to increase the shift pressure at WOT starting around 200 ft-lb. What you have would work fine with the Explorer Sport or any EcoBoost V6.
    After a bit of aggressive driving it actually "fixed" itself. I guess adaptive learned and made some adjustments on that side.

    Any tips on a downshift issue from 6th? It wont downshift until I get pretty far into the throttle and then it goes to 4th. Would like it to go to 5th with a little less throttle input rather than the hard drop to 4th at a higher throttle position.

  7. #7
    Senior Tuner metroplex's Avatar
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    You will have to adjust the shift schedules. Ford did not program the sport mode schedules correctly on the Explorer and PIU.

  8. #8
    Advanced Tuner skylinedan's Avatar
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    ^^^ That's no lie, LOL. They're way off on the shift schedules up high, ive lowered mine quite a bit just to keep it from hanging out in gears to long after settle into a constant speed.

  9. #9
    Tuner in Training
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    I know this is an older thread but I wanted to share my experience. I recently have been working on a ford escape with the 6f35 transmission and the 2-3 shift was miserable. I have not adjusted much but what I did was copy the 3->4 tables on ramp, adaptive, and clutch fill time and applied them to the 2->3 shift. Now I will say I haven't tried a WOT shift yet but it really helped out with half throttle shifting. I also haven't messed with shift pressure yet as I'm doing one thing at a time and learning a lot on the way.

    P.S on my Clutch fill time schedule between 2->3 and 3->4 I only adjusted the fill rates that were slower. The ones that were showing faster on the schedule I left alone.
    Last edited by dubau2; 04-20-2020 at 09:39 AM.

  10. #10
    Tuner in Training
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    Hello @dubau2! Did you have any other finding or progress on this issue with 2-3 shift on 6F35? I have a similar issue posted here:

    https://forum.hptuners.com/showthrea...ost-6f35-trans