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Discussion in '2nd Gen. Builds (2005-2015)' started by Comatose, Feb 17, 2018.

Page 48 of 386
  1. Sep 24, 2018 at 1:29 PM
    #941
    ovrlndkull

    #941
    ovrlndkull STUKASFK - HC4LIFE

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    Funny that bank 1 is DS and Bank 2 is ps which is opposite of the norm. Guess Toyota wanted to be weird with this one.
     
    ovrlndkull, Sep 24, 2018
    #941
    MarX and Comatose[OP] like this.
  2. Sep 24, 2018 at 2:24 PM
    #942
    EatSleepTacos

    #942
    EatSleepTacos Well-Known Member

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    :facepalm: I put this same pic in your build thread.
     
    EatSleepTacos, Sep 24, 2018
    #942
    MarX, RobP62, Subway4X4[QUOTED] and 2 others like this.
  3. Sep 24, 2018 at 2:24 PM
    #943
    Subway4X4

    #943
    Subway4X4 Shameless Copy Cat

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    Lloyd
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    I’m gonna try to diagnose a P0305 code - misfiring #5 cylinder.

    Hopefully it’s just a spark plug or an Ignition coil.

    My question is: What would cause an ignition coil to fail?
     
    Subway4X4, Sep 24, 2018
    #943
    MarX and Comatose[OP] like this.
  4. Sep 24, 2018 at 2:25 PM
    #944
    ovrlndkull

    #944
    ovrlndkull STUKASFK - HC4LIFE

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    I saw that. Mr..Googlepants works wonders!
     
    ovrlndkull, Sep 24, 2018
    #944
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  5. Sep 24, 2018 at 2:25 PM
    #945
    Subway4X4

    #945
    Subway4X4 Shameless Copy Cat

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    Thanks!

    Yeah I found a pic earlier this morning, but it didn’t indicate front of vehicle.
     
    Subway4X4, Sep 24, 2018
    #945
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  6. Sep 24, 2018 at 2:26 PM
    #946
    ovrlndkull

    #946
    ovrlndkull STUKASFK - HC4LIFE

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    Age. They don't last forever they are constantly charging and discharging eventually wearing out.
     
    ovrlndkull, Sep 24, 2018
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  7. Sep 24, 2018 at 2:38 PM
    #947
    Subway4X4

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    Subway4X4 Shameless Copy Cat

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    I think they should last more than 14 years. What a rip off Toyota!
     
    Subway4X4, Sep 24, 2018
    #947
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  8. Sep 24, 2018 at 2:40 PM
    #948
    ovrlndkull

    #948
    ovrlndkull STUKASFK - HC4LIFE

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    :rofl:
     
    ovrlndkull, Sep 24, 2018
    #948
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  9. Sep 24, 2018 at 2:42 PM
    #949
    Comatose

    #949
    Comatose [OP] You snuff it, we stuff it.

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    Additionally if something is grounding from bad insulation an overdraw of current will cook it as well.

    Edit: Really any overdraw of current will.
     
    Comatose, Sep 24, 2018
    #949
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  10. Sep 24, 2018 at 4:54 PM
    #950
    Subway4X4

    #950
    Subway4X4 Shameless Copy Cat

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    Ok. I’ll bite.

    What would cause an overdraw of current?
     
    Subway4X4, Sep 24, 2018
    #950
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  11. Sep 24, 2018 at 5:20 PM
    #951
    Comatose

    #951
    Comatose [OP] You snuff it, we stuff it.

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    A short. If you have a bad plug or cable it can increase resistance which leads to heat which leads to insulation breakdown. Then it's free to short out.
     
    Comatose, Sep 24, 2018
    #951
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  12. Sep 25, 2018 at 5:19 AM
    #952
    Subway4X4

    #952
    Subway4X4 Shameless Copy Cat

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    OK. Need an opinion here.

    I'm gonna try to fix my cylinder misfire with new plugs and a new #5 Ignition coil.

    It easy and cheap to replace all 6 spark plugs.

    But what about the ignition coils? Since the truck is 14 years old, should I just go ahead and replace all 6 coils and be done with it?

    Are the other five current coils due to fail due to age?

    The best deal I could find for OEM Denso coils is at Advance Autoparts. With a 25% coupon code, the price is $47 each.
     
    Subway4X4, Sep 25, 2018
    #952
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  13. Sep 25, 2018 at 5:43 AM
    #953
    EatSleepTacos

    #953
    EatSleepTacos Well-Known Member

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    What I’d do before anything is try swapping ignition coils and see if the code follows the “bad” coil.
     
    EatSleepTacos, Sep 25, 2018
    #953
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  14. Sep 25, 2018 at 5:49 AM
    #954
    Justanotherhemi

    #954
    Justanotherhemi Space Cowboy/Ninja

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    Try clearing the CEL with an obd2 code reader. Swap out the coil to another plug then turn the truck on. If yoy have the misfire on cyl 5 still then you plug is bad. If it changes to the cyl you swapped the coil to then you know for a fact it is your coil.
     
    Justanotherhemi, Sep 25, 2018
    #954
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  15. Sep 25, 2018 at 9:34 AM
    #955
    Comatose

    #955
    Comatose [OP] You snuff it, we stuff it.

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    What Randy and Jaime said.
     
    Comatose, Sep 25, 2018
    #955
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  16. Sep 25, 2018 at 12:34 PM
    #956
    ovrlndkull

    #956
    ovrlndkull STUKASFK - HC4LIFE

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    What Randy and Jaime said but I'd move that plug to a different cycl. also if the code follows either the plug or the coil then you'll know which is causing the issue. If it stays with #5 then you either have something mechanical wrong with that cycl or a bad injector.

    As far as replacement of all the coils when I turned wrenches and we had a vehicle with the age and mileage of yours then I'd recommend replacement of all 6 but it is not necessary. They all will eventually fade and die. You also got to think it's a possibility that the coils have weakend over time and the spark isn't as strong as it once was. It's hard to tell unless you put them on an oscilloscope and look at their pattern.
     
    ovrlndkull, Sep 25, 2018
    #956
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  17. Sep 25, 2018 at 12:41 PM
    #957
    Comatose

    #957
    Comatose [OP] You snuff it, we stuff it.

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    Hes going to need a basis to look at. Rise time, peak voltage, etc...
     
    Comatose, Sep 25, 2018
    #957
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  18. Sep 25, 2018 at 12:48 PM
    #958
    ovrlndkull

    #958
    ovrlndkull STUKASFK - HC4LIFE

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    Yeah but you can compare the old ones and see any annomolies in the old ones. Yes having a baseline of what a good new one looks like is ideal
     
    ovrlndkull, Sep 25, 2018
    #958
    MarX and Comatose[QUOTED][OP] like this.
  19. Sep 25, 2018 at 12:57 PM
    #959
    Comatose

    #959
    Comatose [OP] You snuff it, we stuff it.

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    Good point. Any working baseline is good enough for troubleshooting. Hopefully Lloyd has access to an oscope.
     
    Comatose, Sep 25, 2018
    #959
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  20. Sep 26, 2018 at 8:27 AM
    #960
    Subway4X4

    #960
    Subway4X4 Shameless Copy Cat

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    No oscilloscope.

    I’m going with simple first.

    1. Switching the #5 coil to #3 to see if I get a misfire code on #3
    2. If yes, then replacing the bad coil with a new coil.
    3. If no, then change out #5 plug to see if it fixes it.
    4. If new plug fixed problem. Celebrate. Then replace all plugs and hold onto my new coil as a spare.
    5. If still getting misfire. Then I’ll come back to you guys.
     
    Subway4X4, Sep 26, 2018
    #960
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