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how to change sparkplugs 2TR-FE

Discussion in '4 Cylinder' started by YotaMan2007, May 16, 2011.

  1. Jan 20, 2014 at 2:19 PM
    #81
    george3

    george3 Well-Known Member

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  2. Feb 25, 2014 at 11:36 PM
    #82
    crawl

    crawl Well-Known Member

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    How much experience do you guys have in reading spark plugs?

    This is not something you should take lightly and not for your average DIY'r. Without the knowledge/ability/experience in reading plugs.. you're better off just simply replacing them.

    Spark plug part numbers:
    Unless you've contacted the tech dept. of the manufacturer and explained your intended use of a "different" plug number that is not on the application chart for your motor and year, you are taking a chance of damaging things. At the very least, you can hurt performance by changing the size of the spark, the depth of the spark in the cylinder, affecting timing, fueling........ BAD idea.

    Iridium spark plug gap:
    DO NOT gap or re-gap iridium plugs. Every manufacturer will clearly state this on their website.
     
    Last edited: Jul 8, 2015
  3. Feb 26, 2014 at 11:16 AM
    #83
    DGXR

    DGXR Well-Known Member

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  4. Feb 26, 2014 at 3:35 PM
    #84
    crawl

    crawl Well-Known Member

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    Last edited: Feb 27, 2014
  5. Mar 11, 2014 at 2:33 PM
    #85
    johnnyco

    johnnyco Member

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    Just finished swapping out the plugs. Took about 1.5 hours. Next time it will be probably about 1 hour. Pretty straight forward with this handy thread and a Chiltons by my side. I was curious if I didnt attach the coils onto the end of the plugs as a i replacing each plug. But I guess they seated themselves when I reinstalled the coils because the truck now idles like a kitten. I cant even tell if the truck was running while idling!! I decided to torque the plugs to 10 Nm instead of Chiltons reccommended 20Nm. Just seemed too much for precious plugs. I also tweaked the gap a hair in order to get right at .043". I know that isnt reccommended but I did it before I read not too... No harm done.

    Fun and cheap little maintenance project. Thanks for the thread!!:)
     
  6. Jul 7, 2014 at 5:05 PM
    #86
    drogers0031

    drogers0031 Member

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  7. Jul 15, 2014 at 12:30 PM
    #87
    pinktaco808

    pinktaco808 Hot Steppa

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    anyone notice any difference after they changed the plugs?
     
  8. Jul 15, 2014 at 2:00 PM
    #88
    81shark

    81shark Well-Known Member

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    i didn't notice anything.


    i hate when people say this sort of thing, but the engine drives like it just came off the factory floor. i'm sure there are some minor differences, but it runs like a top after 101K miles
     
  9. Jul 15, 2014 at 8:14 PM
    #89
    Rich91710

    Rich91710 Well-Known Member

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    +1

    It's called "maintenance" for a reason.
    People that claim huge power gains with "special" plugs, or by going from copper to platinum or iridium... they would have seen the same gains with a new set of copper plugs because they left their plugs in too damned long.

    You should not see an improvement with any routine maintenance... the idea is to "fix" things before they become a problem.
     
  10. Jul 15, 2014 at 9:46 PM
    #90
    pinktaco808

    pinktaco808 Hot Steppa

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    well i mean did it make it run like it was new again if you know what i mean
     
  11. Jul 15, 2014 at 9:50 PM
    #91
    Rich91710

    Rich91710 Well-Known Member

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    Ya, but it shouldn't be noticeable.
    If you notice it "running like new" with new plugs, you went too long.
    It's a Toyota. It should "run like new" until you tow it to the salvage yard as long as it is maintained properly.
     
  12. Jul 17, 2014 at 6:38 AM
    #92
    81shark

    81shark Well-Known Member

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    i do notice a change in how it runs after an oil change. always super smoooth for that first 25 miles or so.
     
  13. Jul 17, 2014 at 11:45 AM
    #93
    pinktaco808

    pinktaco808 Hot Steppa

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    does it get better gas mileage?
     
  14. Jul 17, 2014 at 6:44 PM
    #94
    Binky

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    thanks alot for pics.helps alot
     
  15. Jul 18, 2014 at 8:59 AM
    #95
    81shark

    81shark Well-Known Member

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    no
     
  16. Aug 24, 2014 at 10:01 AM
    #96
    MQQSE

    MQQSE Chief Pal Guy, GOB

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    I returned to getting a consistent 20 to 21.5 MPG. I don't record it, but I generally check every fill up. As I stated above, I had noticed a drop which prompted me to change them at 93K miles, versus waiting until I hit 100K.
     
  17. Aug 24, 2014 at 4:11 PM
    #97
    DGXR

    DGXR Well-Known Member

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    Today I changed the plugs and cleaned the MAF sensor and throttle body. It revs a little higher on cold start but it's only been one start since the work, hopefully it will mellow a bit as the computer adjusts, had the battery disconnected for a couple hours while doing the work. It doesn't run any smoother but it always ran smooth - did the maintenance because 105k miles, not any driveability or performance issues. Everything went well, pretty easy work actually.
     
    Last edited: Aug 24, 2014
  18. Oct 2, 2014 at 7:48 AM
    #98
    garrettc134

    garrettc134 Active Member

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    Just replaced mine for the first time at 130k miles. They looked surprisingly good, probably could have gone another 50, but meh for 20 dollars might as well change them especially since it was so easy. Thanks for the thread, wish they would give this kind of detail in my Haynes book...

    2014-10-02 09.30.35.jpg
     
  19. Oct 2, 2014 at 12:45 PM
    #99
    81shark

    81shark Well-Known Member

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    i've got an excel file with mileage data by year/month/tank going back to when i purchased it in nov 05. i don't see any noticeable difference after the change. the only real variances i ever see are caused by road trips and cold/warm weather.
     
  20. Jan 2, 2015 at 9:16 PM
    #100
    pinktaco808

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    Thanks man
     
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