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  1. #1

    Question Some sort of a cut on an up shift

    As title...

    It only happens once in a fairly long while. It feels like some sort of vacuum & only lasts for like 1 second. Car is bone stock & runs perfect though, no noise or warning lights of any sort. Anyone experiencing the same?
    Last edited by kuishe; 03-12-2018 at 04:25 AM.

  2. #2
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    Where are you on the rev range when upshifting? If you are into the red it may the the revlimiter cut out?

  3. #3
    Quote Originally Posted by Fatboy 18 View Post
    Where are you on the rev range when upshifting? If you are into the red it may the the revlimiter cut out?
    Woo, thanks for the quick input! Not even driving hard, just 1/4 or 1/2 throttle shifting at 3 - 4K...

  4. #4
    Quote Originally Posted by Fatboy 18 View Post
    Where are you on the rev range when upshifting? If you are into the red it may the the revlimiter cut out?
    As a matter of fact, I don't recall it ever happened on a shift at or pass 5K, it's always on a fairly casual shift haha, weird...

  5. #5
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    Im sure others will chime in soon.

  6. #6
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    I don't have enough seat time in this beast or much Viper experience, but my 2014 Mustang GT (modded) would sometimes do this. Drive me crazy trying to figure it out. It turned out to be the traction control cutting power as the tires broke free...usually while some side load, ie the nannies trying to keep you from letting the ass pass you! Mostly getting on it at the end of a freeway ramp for example.
    Not sure if it will help, but try turning off the tc and see if it continues. Be carefull of course!
    Troy

  7. #7
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    What's Traction Control?????

  8. #8
    Quote Originally Posted by Fatboy 18 View Post
    What's Traction Control?????
    The thing that will keep you from crashing

  9. #9
    Quote Originally Posted by DZnutz View Post
    The thing that will keep you from crashing
    He's playing & you play along =)

  10. #10
    Quote Originally Posted by Lost me beer View Post
    I don't have enough seat time in this beast or much Viper experience, but my 2014 Mustang GT (modded) would sometimes do this. Drive me crazy trying to figure it out. It turned out to be the traction control cutting power as the tires broke free...usually while some side load, ie the nannies trying to keep you from letting the ass pass you! Mostly getting on it at the end of a freeway ramp for example.
    Not sure if it will help, but try turning off the tc and see if it continues. Be carefull of course!
    Troy
    Hmm, I feel this is it but sorta not too. As I mentioned all those times that happened are on my fairly casual shifts. Also if it's really the nannies, then the cut would have kicked in during a handful of times when the rear end got loose a bit but never did once...

  11. #11
    ive never experianced this on any of my gen v vioers... ?

  12. #12
    Quote Originally Posted by SRT_BluByU View Post
    ive never experianced this on any of my gen v vioers... ?
    Maybe I got a rare viper quirk!

  13. #13
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    It's happened to me a couple times,on mine it's like the car completely cuts off( even when in giving it more gas), then starts back up, but it happens very fast.

  14. #14
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    Do you have a code scanner?

  15. #15
    Quote Originally Posted by No hemi View Post
    It's happened to me a couple times,on mine it's like the car completely cuts off( even when in giving it more gas), then starts back up, but it happens very fast.
    Sucks for us but good knowing I ain't alone!

  16. #16
    Quote Originally Posted by Arizona Vipers View Post
    Do you have a code scanner?
    Nope but still be able to scan something even no dash lights are on though?

  17. #17
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    Is it possible that what you're feeling is actually electronic throttle delay? Mine (Only V I've driven) has what I call a "hiccup" when you first touch the gas pedal, I think most cars have it now, but in the Viper it feels a bit stronger. If you're coming from a car with instant throttle response, this will drive you crazy. I believe this can be tuned out, but I'm still stock, so I have no proof of this. Is that maybe what you're feeling?

  18. #18
    The easiest way for us to diagnose or understand the issue is to get a video of it.

  19. #19
    Quote Originally Posted by Rare Snake View Post
    Is it possible that what you're feeling is actually electronic throttle delay? Mine (Only V I've driven) has what I call a "hiccup" when you first touch the gas pedal, I think most cars have it now, but in the Viper it feels a bit stronger. If you're coming from a car with instant throttle response, this will drive you crazy. I believe this can be tuned out, but I'm still stock, so I have no proof of this. Is that maybe what you're feeling?
    Ya hiccup! That's the word closest to how it feels! I ain't sure rather the cut happens when I'm back on the gas or not after the shift. But I'm 70% sure it's when I'm off the gas, I will pay more attention next time!

    - - - Updated - - -

    Quote Originally Posted by cubeman View Post
    The easiest way for us to diagnose or understand the issue is to get a video of it.
    Not doable because it's very random & don't happen often!

  20. #20
    Quote Originally Posted by No hemi View Post
    It's happened to me a couple times,on mine it's like the car completely cuts off( even when in giving it more gas), then starts back up, but it happens very fast.
    Can you clearly recall rather you were on or off the gas when it happened?

  21. #21
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    Easiest way to feel it is to just tap the gas at idle, just a quick blip. You will notice it right away. For shifting, it takes some getting used to, just keep the rpm up and shift quick.

  22. #22
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    If it's an earlier car 13/14. Maybe your pcm needs to be updated? I thought I read this somewhere in the Gen V section?

  23. #23
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    Mine has happened while on the gas and driving pretty fast...

  24. #24
    Quote Originally Posted by Rare Snake View Post
    Easiest way to feel it is to just tap the gas at idle, just a quick blip. You will notice it right away. For shifting, it takes some getting used to, just keep the rpm up and shift quick.
    I knew it can't be what you suggested here but I tried anyways & did a few tiny blips, no troubles...

    - - - Updated - - -

    Quote Originally Posted by cashcorn View Post
    If it's an earlier car 13/14. Maybe your pcm needs to be updated? I thought I read this somewhere in the Gen V section?
    Mine is 17 but looks like No hemi can make use of this...

  25. #25
    Quote Originally Posted by No hemi View Post
    Mine has happened while on the gas and driving pretty fast...
    The hiccup happens when you up shift & not just a sudden cut driving in a given gear right?


 
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