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Engine Idle

Discussion in '3rd Gen Tundras (2014+)' started by kurtwp, Sep 1, 2016.

  1. Sep 1, 2016 at 7:29 AM
    #1
    kurtwp

    kurtwp [OP] What

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    So I have a new 2016 and noticed when at a traffic light for a period of time that the rpm will kick up, maybe 200 rpms, then drop down to its original idle. I have the AC, Stereo going and its been hot (98 - 102 degrees F) and humid. Just wondering if Toyota has some type of advance idle system programmed into the vehicle.

    Kurt
     
  2. Sep 1, 2016 at 12:24 PM
    #2
    Wynnded

    Wynnded Wait, what?

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    It's probably bumping the idle up a little when the A/C cycles on and creates a greater load. Power steering can trigger the same bump, particularly if you were to saw the steering wheel when parked.
     
    BlueFalconActual and ColoradoTJ like this.
  3. Sep 1, 2016 at 2:07 PM
    #3
    Sean266

    Sean266 Mr. Clean Staff Member

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    ^^ yep
     
  4. Nov 19, 2016 at 7:52 AM
    #4
    millerthymes

    millerthymes New Member

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    My 2016 does the same thing. I have tried A/C on/off, no steering wheel inputs.....same. My truck also idles "rough" when it goes into lower idle. My first '16 I got back in February I do not recall this as I'm fairly OCD and would have noticed I think as I picked up on this one within 2 days of getting it in May. 3 dealerships, no help. Love my truck, hate this.
     
    ColoradoTJ likes this.
  5. Nov 19, 2016 at 8:07 AM
    #5
    ColoradoTJ

    ColoradoTJ I Stand for the Red, White, and Blue

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    Husky products, 28% tint on windows.
    How many miles on truck?
    What fuel and octane are you using?
     
  6. Nov 19, 2016 at 8:48 AM
    #6
    millerthymes

    millerthymes New Member

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    8150 currently, use name brand fuel, 93 octane. It's done it from day 1 pretty much.
     
  7. Nov 19, 2016 at 9:02 AM
    #7
    joonbug

    joonbug I love peanut butter

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    Just curious what happened to your first '16 and why you got a new one?
     
  8. Nov 19, 2016 at 9:35 AM
    #8
    millerthymes

    millerthymes New Member

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    It was black.......should have listened to my wife.
     
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  9. Nov 19, 2016 at 10:25 AM
    #9
    ColoradoTJ

    ColoradoTJ I Stand for the Red, White, and Blue

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    Are you supercharged? Wondering why your running 93 octane.

    Dealership no help huh?
     
  10. Nov 19, 2016 at 10:43 AM
    #10
    millerthymes

    millerthymes New Member

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    Run 93 in everything. Mowers/quads/ and now the truck, I did run 87 in it(from Exxon) one time and it had quite a bit of clatter/detonation laying into it getting on the freeway.
     
  11. Nov 19, 2016 at 12:12 PM
    #11
    ColoradoTJ

    ColoradoTJ I Stand for the Red, White, and Blue

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    Really?

    Not saying you didn't experience that, but our trucks adjust for timing. I am at your elevation and much higher and have never experienced spark knock.

    I would get a diagnostic check on your truck. Something doesn't sound right, and using premium on a truck that requires 87 octane gets expensive (as I'm sure you already know).
     
    RowdyRon and joonbug like this.
  12. Nov 19, 2016 at 3:26 PM
    #12
    Abrams65

    Abrams65 New Member

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    Like @ColoradoTJ said required is 87/89 which ever you can get but technically you should be able to run any grade gasoline in a modern engine since they all now due to emissions requirements have to have knock sensors. The knock sensor should allow the ECM to adjust the timing that you don't notice a detonation knock.
     
  13. Nov 19, 2016 at 3:43 PM
    #13
    millerthymes

    millerthymes New Member

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    I completely agree with no "need" but like I said previous it's old habit from previous cars and the toys. All 3 of these dealers have scanned it as well as my personal shop that has taken care of my diesel trucks for the past 15 years and nothing comes up. I appreciate all the suggestions. I too was extremely surprised to hear it as well as it's been 20years since turning the timing too high on the fox body mustangs but that's exactly what it sounded like.....
     
    ColoradoTJ likes this.
  14. Nov 19, 2016 at 4:41 PM
    #14
    ColoradoTJ

    ColoradoTJ I Stand for the Red, White, and Blue

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    Husky products, 28% tint on windows.
    So weird. Well you have done what I would have. If this is your biggest problem with your Tundra, your livin the dream.
     
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  15. Nov 28, 2016 at 12:52 PM
    #15
    kurtwp

    kurtwp [OP] What

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    Is the norm idle RPM for the Tundra 600?

    Kurt
     
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