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Thread: 2013 ZL1 Wont Make 5>6 Shift At WOT???

  1. #1

    2013 ZL1 Wont Make 5>6 Shift At WOT???

    Trying to get this car ready for an event coming up and I cant seam to find why the car will not make the 5 to 6 shift at wot. I logged it on the dyno and it is not commanding the shift.
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  2. #2
    I just tried it with these adjustments and still no luck
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  3. #3
    Senior Tuner
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    Feb 2009
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    1,931
    I ran into this once before, I think it was the safety shift settings that were messing with it. If you go look at the the current 6th gear safety shift its about 10 mph higher than what your currently trying to achieve. Try adjusting that down and see.

  4. #4
    Tried that..... Still not shifting.
    Attached Files Attached Files
    Last edited by jc052685; 10-13-2014 at 01:25 PM.

  5. #5
    Still looking for input. Any help/guidance is appreciated!

  6. #6
    Still need help....

  7. #7
    Tuner in Training
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    Good luck, I don't think there is a 6L80/90 anything on the planet that will shift into 6th at wot!!!
    LSX AM 444
    Runner up in points 2011
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    8.14@166 all motor
    Driver/ Tuner car 414 Texas mile 263.2mph

  8. #8
    Advanced Tuner CatnipG5Bandit's Avatar
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    Apr 2013
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    What RPM are you seeing when attempting a shift?
    2008 Pontiac G5 2.2L (main oil seal became a crunchy Autumn leaf, RIP)
    2016 Fiesta 1.0L Ecoboost - Project "not-so-detestable"

  9. #9
    Senior Tuner mowton's Avatar
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    Quote Originally Posted by CatnipG5Bandit View Post
    What RPM are you seeing when attempting a shift?
    ........at you're doing the required 175 mph, right?
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