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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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    2014 toyota tundra SR5 5.7 trd4x4
    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 8:57 AM
    #2
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    leveling kit
    it is not badged anywhere that says flex fuel.
     
  3. Aug 30, 2017 at 8:59 AM
    #3
    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.
     
  4. Aug 30, 2017 at 9:06 AM
    #4
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    leveling kit
    5TFDW5F17EX390459 my 8th letter is a 1
     
  5. Aug 30, 2017 at 9:08 AM
    #5
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    leveling kit
    awesome thank you!!!
     
  6. Aug 30, 2017 at 9:11 AM
    #6
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    leveling kit
    so mine is flex fuel?
     
  7. Aug 30, 2017 at 9:12 AM
    #7
    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
     
    GNTundra likes this.
  8. Aug 30, 2017 at 9:16 AM
    #8
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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

    jacob.jons.jj [OP] New Member

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    leveling kit
    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?
     
  10. Aug 31, 2017 at 3:25 PM
    #10
    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!
     
  11. Aug 31, 2017 at 3:28 PM
    #11
    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
     
  12. Aug 31, 2017 at 4:51 PM
    #12
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    leveling kit
    so do i!!!! if not it will be traded in for a diesel
     
  13. Aug 31, 2017 at 4:52 PM
    #13
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    leveling kit
    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
     
  14. Aug 31, 2017 at 4:57 PM
    #14
    Tundra_mike89

    Tundra_mike89 New Member

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    Toytec boss coilovers Toytec shackles Total chaos uca's Method wheels Nitto ridge grapplers
    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.
     
  15. Aug 31, 2017 at 5:01 PM
    #15
    jacob.jons.jj

    jacob.jons.jj [OP] New Member

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    leveling kit
    Thank you very much!!! i have an appointment to drop it off tuesday for them to look at it.
     
    Tundra_mike89 likes this.
  16. Jul 11, 2018 at 12:40 PM
    #16
    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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