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2004 to 2008 F-150 and Mark-LT
4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs.

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  #1  
Old Thu, February 16th, 2012, 04:00 AM
zippman1 zippman1 is offline
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Also I can not change the shift rpms like i have read about older cs programmers being able to do
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Old Thu, February 16th, 2012, 03:35 PM
zippman1 zippman1 is offline
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I think I put the HEX code in there. Can someone confirm if this is correct. I have ordered the 87 performance tune. Is there a way that i can have this changed to 93 instead. My canned tunes are really sucking right now. Performance is good but anytime i give it hard throttle it will shift really hard. If i dont give it too much throttle then it shifts ok... Please can someone tell me what i need to do to make my transmission better so that it does not break.
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Old Thu, February 16th, 2012, 05:18 PM
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Originally Posted by zippman1 View Post
I think I put the HEX code in there. Can someone confirm if this is correct. I have ordered the 87 performance tune. Is there a way that i can have this changed to 93 instead. My canned tunes are really sucking right now. Performance is good but anytime i give it hard throttle it will shift really hard. If i dont give it too much throttle then it shifts ok... Please can someone tell me what i need to do to make my transmission better so that it does not break.
Zippman, I can't find your hex code/calibration ECM post in this forum: http://forum.gopowerhungry.com/give-...-ecm-tcm-code/, which is where Corey wants it. However, you HAVE entered it in your User Profile, so that part's good.

You can try dialing the shift firmness down more than -4 if you feel the transmission is shifting too "hard". Try -10 for the three shift points and adjust from there.

- Jack
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Old Thu, February 16th, 2012, 05:19 PM
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If the shifts are that bad put it back to stock....
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Old Thu, February 16th, 2012, 06:05 PM
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Ok see if hex is posted now? I think I may be returning to stock. I really don't want this to be an expensive paper weight/ refund. Any ideas how to fix? Is there an update I'm missing?? Thanks in advance guys
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Old Thu, February 16th, 2012, 08:11 PM
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Many of the flex fuel trucks have been problematic. You'll probably have to wait until you have custom tunes if the programmer doesn't soften them up enough.
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Old Thu, February 16th, 2012, 09:26 PM
zippman1 zippman1 is offline
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Anyone else with a 5.4 flex have the same problem? How did u fix it? Thanks
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Old Fri, February 17th, 2012, 10:54 AM
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Ok see if hex is posted now? I think I may be returning to stock. I really don't want this to be an expensive paper weight/ refund. Any ideas how to fix? Is there an update I'm missing?? Thanks in advance guys
Please notice the missing entries that 88Racing pointed out. You can edit your first post to add them.

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