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Is it possible for spark plugs to take a dump at 28K?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by BlueT, May 6, 2010.

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  1. May 6, 2010 at 6:51 AM
    #1
    BlueT

    #1
    BlueT [OP] Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    So last few days my truck is running ruff. Especially when cold in the morning. When you throttle down it sounds like want to misfire.
    It does not skip the beat but its just heavy sound. The misfire part on the throttle down is what is curious. So is it possible that my spark plugs are that wear out at 28K ?
    Any ideas ???:confused:
     
    BlueT, May 6, 2010
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  2. May 6, 2010 at 6:54 AM
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    JimBeam

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    JimBeam BECAUSE INTERNETS!! Moderator

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    anything is possible
     
    JimBeam, May 6, 2010
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  3. May 6, 2010 at 6:56 AM
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    98tacoma27

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    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    Anything is possible. You could also have a bad wire. Did the CEL light up?
     
    98tacoma27, May 6, 2010
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  4. May 6, 2010 at 6:58 AM
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    hillbillynwv

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    hillbillynwv Well-Known Member

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    What octane fuel are you using?..... My 4.0 V6 runs poorly on 87. I run 89 at all times of the year.
     
    hillbillynwv, May 6, 2010
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  5. May 6, 2010 at 7:03 AM
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    BlueT

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    BlueT [OP] Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    No, no CEL I will install my computer chip and make a full run on it to see if anything is unusual.

    Always 91/93 ...
     
    BlueT, May 6, 2010
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  6. May 6, 2010 at 7:04 AM
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    JimBeam

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    JimBeam BECAUSE INTERNETS!! Moderator

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    your computer chip?
     
    JimBeam, May 6, 2010
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  7. May 6, 2010 at 7:06 AM
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    98tacoma27

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    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    ^^^^^^^
    X2 on the chip
     
    98tacoma27, May 6, 2010
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  8. May 6, 2010 at 7:08 AM
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    BlueT

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    BlueT [OP] Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    Its a OBDII thing that plugs in and collects info for you you can later hook up to laptop and get all graphs and info...
     
    BlueT, May 6, 2010
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  9. May 6, 2010 at 7:09 AM
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    Jeremiah Stewart

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    Jeremiah Stewart New Member

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    Blue T,
    It is possible for the plugs to have already gone bad from the factory at only 28k. The 1GR in both the Taco and FJ are the only engines that Toyota didn't put platinum plugs in from the factory. They are simply an old school copper plug. The life of a copper plug is only about 25-30k. My recommendations is to run the Denso Iridium plugs in the truck. They are a little more expensive, but worth the investment. if needed, I can get you the part number
    Hope this helps out.

    Iridium Power IKH20
    Iridium Long Life
    $56 SK20HR11 ---- IRIDIUM PLATINUM power pack Spark Plugs -- # 3421 ----- 6 PCS NEW
    SK20HR11
     
    Jeremiah Stewart, May 6, 2010
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  10. May 6, 2010 at 7:10 AM
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    98tacoma27

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    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.

    Awesome. Sounds like a great tool. Name/product info?
     
    98tacoma27, May 6, 2010
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  11. May 6, 2010 at 7:17 AM
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    TacoOwner?

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    TacoOwner? Well-Known Member

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    I think this would take less than 30 minutes to find out. You should pop your hood and pull some plugs. This will also help narrow down the problem if it is not the plugs.

    Josh
     
    TacoOwner?, May 6, 2010
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  12. May 6, 2010 at 7:24 AM
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    RogueLeader

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    RogueLeader Well-Known Member

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    Could also be a bad O2 sensor. Had these types of symptoms when they went bad, especially with a cold engine, and rough low idle when at a stop sign, or light.
     
    RogueLeader, May 6, 2010
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  13. May 6, 2010 at 7:26 AM
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    JimBeam

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    JimBeam BECAUSE INTERNETS!! Moderator

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    typically your truck will throw a CEL with a bad O2 sensor tho
     
    JimBeam, May 6, 2010
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  14. May 6, 2010 at 7:32 AM
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    BlueT

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    BlueT [OP] Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    Thanks those are Denso Iridium right?, if indeed those copper plugs took a dump on me there is no reason to put the same ones back.

    Davis carchip http://www.carchip.com/
    its very nice tool
     
    BlueT, May 6, 2010
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  15. May 6, 2010 at 7:34 AM
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    BlueT

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    BlueT [OP] Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    yeah I am near replacing interval anyway so they are getting replaced. I will be surprised if this is caused by spark plugs they should last more then that.
     
    BlueT, May 6, 2010
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  16. May 6, 2010 at 7:35 AM
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    Danosabre

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    Danosabre Well-Known Member

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    When you are pulling the plugs look at the plug wires too, just in case, one could be frayed or worn.
     
    Danosabre, May 6, 2010
    #16
  17. May 6, 2010 at 7:35 AM
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    wiscdave

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    wiscdave Lets Do It!

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    Anybody know how many miles can we expect out of the Iridium Long life?
     
    wiscdave, May 6, 2010
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  18. May 6, 2010 at 9:56 AM
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    BlueT

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    BlueT [OP] Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    So it looks like I can only get Denso from dealer by Saturday.

    I am now keen to use i4 plugs since according to Denso they are interchangeable

    YEAR 2007 ENGINE TYPE V6 LITER 4.0 CC 3956 ENGINE DESIGNATION 1GRFE
    STANDARD PLUG NO K20HR-U11
    STANDARD PLUG STOCKNUMBER 338
    1 PLATINUM PLUG NO -
    PLATINUM PLUG STOCKNUMBER -
    IRIDIUM LONG-LIFE PLUG NO
    $56 SK20HR11 ---- IRIDIUM PLATINUM power pack Spark Plugs -- # 3421 ----- 6 PCS NEW
    SK20HR11
    IRIDIUM LONG-LIFE PLUG STOCKNUMBER 3421
    IRIDIUM POWER PLUG NO IKH20
    IRIDIUM POWER PLUG STOCKNUMBER 5344
    GAP 0.044

    YEAR 2007 ENGINE TYPE L4 LITER 2.7 CC 2694 ENGINE DESIGNATION 2TRFE
    STANDARD PLUG NO K20HR-U11
    STANDARD PLUG STOCKNUMBER 3381 PLATINUM PLUG NO -
    PLATINUM PLUG STOCKNUMBER -
    IRIDIUM LONG-LIFE PLUG NO SK20HR11
    IRIDIUM LONG-LIFE PLUG STOCKNUMBER 3421
    IRIDIUM POWER PLUG NO IKH20
    IRIDIUM POWER PLUG STOCKNUMBER 5344
    GAP 0.044
     
    BlueT, May 6, 2010
    #18
  19. May 6, 2010 at 10:00 AM
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    EricT

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    EricT Well-Known Member

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    Just curious here - I have an 09 v6, do I too have the cheapo coppers? If so, is there a noteable performance/mileage improvement running the platinum sparkplugs? I just rolled 10k and I would rather get ahead of this one if I could.
     
    EricT, May 6, 2010
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  20. May 6, 2010 at 10:08 AM
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    BlueT

    #20
    BlueT [OP] Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    Something Interesting

    "Part number 9091902248 was superseded by part number 90919A2001."

    Apparently there was something wrong with our coils so Toyota made new one with new part number :confused:
     
    BlueT, May 6, 2010
    #20
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Products Discussed in

DENSO ---SK20HR11---- IRIDIUM PLATINUM power pack Spark Plugs -- # 3421 ----- 6 PCS NEW
$55.98
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