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Sputtering Start

Discussion in '3rd Gen Tundras (2014+)' started by jacob.jons.jj, Aug 30, 2017.

  1. Aug 30, 2017 at 8:40 AM
    #1
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    leveling kit
    Hello Everyone!! I have a 2014 Toyota Tundra 5.7L I bought used with around 70k it currently has around 88k miles on it. When I bought the truck I noticed the next day it started kinda rough so I figured it probably had some bad gas. I put a can of seafoam in it and the problem seem to go away. after that tank of gas ran out the problem began again once I filled it back up (regular gas) the problem began again. it only sputters on crank up after it sits for a couple hours. I done some research and found a recall for the ECU something to do with flex fuel crap. I took it to the dealership and they (supposedly) did the software upgrade. I picked it up from the dealership and it started fine. the next morning I get into it to go to work and it does the same sputtering crap. My next tank I put premium gas in the truck and the problem seem to go away for a couple weeks but its now starting to do it again. I get gas at the same place everytime with all my vehicles. can anyone help me with this or having similar issues?? im a die hard Toyota man and this one is really starting to upset me.
     
  2. Aug 30, 2017 at 8:56 AM
    #2
    GNTundra

    GNTundra The Notorious Troll Sniper

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    Procomp Stage 2 6" 20x12 Fuel Mavericks 35x12.50x20 Nittos
    Is this a flex fuel?
     
  3. Aug 30, 2017 at 8:57 AM
    #3
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    leveling kit
    it is not badged anywhere that says flex fuel.
     
  4. Aug 30, 2017 at 8:58 AM
    #4
    GNTundra

    GNTundra The Notorious Troll Sniper

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    You buy it new?
     
  5. Aug 30, 2017 at 8:59 AM
    #5
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    leveling kit
    no I purchased it used around 70k miles on it.
     
  6. Aug 30, 2017 at 9:00 AM
    #6
    GNTundra

    GNTundra The Notorious Troll Sniper

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    I cant remember i think its the 8th letter in your vin#
    If its a W its a flex fuel :thumbsup:
     
  7. Aug 30, 2017 at 9:06 AM
    #7
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    leveling kit
    5TFDW5F17EX390459 my 8th letter is a 1
     
  8. Aug 30, 2017 at 9:07 AM
    #8
    GNTundra

    GNTundra The Notorious Troll Sniper

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    Lemme take a peek like I said I thought it was the 8th could be the 5th.
     
  9. Aug 30, 2017 at 9:08 AM
    #9
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    awesome thank you!!!
     
  10. Aug 30, 2017 at 9:09 AM
    #10
    GNTundra

    GNTundra The Notorious Troll Sniper

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    Yes its flex.
    Screenshot_20170830-110900.jpg
     
  11. Aug 30, 2017 at 9:10 AM
    #11
    GNTundra

    GNTundra The Notorious Troll Sniper

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    No problem and welcome aboard! :thumbsup:
     
  12. Aug 30, 2017 at 9:11 AM
    #12
    GNTundra

    GNTundra The Notorious Troll Sniper

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    You in an area where winters come early?
     
  13. Aug 30, 2017 at 9:11 AM
    #13
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    so mine is flex fuel?
     
  14. Aug 30, 2017 at 9:12 AM
    #14
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    winter?? whats that?? I live in south Ga winter to us is like 75 degrees haha
     
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  15. Aug 30, 2017 at 9:13 AM
    #15
    GNTundra

    GNTundra The Notorious Troll Sniper

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    Yes it is!! Shady people pull off badge sometimes to hide the fact. Im not saying thats the case. Some people get scared off from flex fuel.
     
  16. Aug 30, 2017 at 9:15 AM
    #16
    GNTundra

    GNTundra The Notorious Troll Sniper

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    Lol. Hey thatll work. Your truck may be getting stuck in e85 mode and its over fueling.
     
  17. Aug 30, 2017 at 9:16 AM
    #17
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    Gotcha!!! would flex fuel have anything to do with this problem?
     
  18. Aug 30, 2017 at 9:16 AM
    #18
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    yes that's what I've read is that they get stuck in e85 mode?? how in the heck can I find out if it is or not? and what can I do to fix it?
     
  19. Aug 31, 2017 at 3:25 PM
    #19
    Viper3G

    Viper3G Why isn't work more like this?

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    Hope you figure it out and it's an easy fix. And welcome!
     
  20. Aug 31, 2017 at 3:28 PM
    #20
    Tundra_mike89

    Tundra_mike89 New Member

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    My friend had that issue on his 2012 tundra. I think he said it ended up being an ignition problem. I'll have to check with him and make sure
     
  21. Aug 31, 2017 at 4:51 PM
    #21
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    so do i!!!! if not it will be traded in for a diesel
     
  22. Aug 31, 2017 at 4:52 PM
    #22
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    idk what it is. if i run premium gas it fires up a lot better but on regular gas it barely starts. if the dealership cant get it fixed they can keep it haha
     
  23. Aug 31, 2017 at 4:57 PM
    #23
    Tundra_mike89

    Tundra_mike89 New Member

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    Ok just got off the phone with him. It was a bad ecm module computer. Exact same symptoms as you. Dealer changed it out and it fixed the problem.
     
  24. Aug 31, 2017 at 5:01 PM
    #24
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    Thank you very much!!! i have an appointment to drop it off tuesday for them to look at it.
     
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  25. Jul 11, 2018 at 12:40 PM
    #25
    Sabre8

    Sabre8 New Member

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    Anything since then? I have a 14 flexfuel 5.7 with same issues...
     

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