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Spark plug question

Discussion in '1st Gen. Tacomas (1995-2004)' started by rob mcnair, Nov 29, 2008.

  1. Nov 29, 2008 at 6:56 PM
    #1
    rob mcnair

    rob mcnair [OP] New Member

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    Hi all love the site! I've got an 03 taco 4cyl 4x4. The dealer told me I need to have the plugs changed every 30k miles but I've been reading here that the 4cyl. has 100k mile plugs and only the v6 needs to be changed every 30k. My question is is it the 2nd gen. 4cyl that have the 100k mile plugs or does my 03 4cyl have them also?
     
  2. Nov 29, 2008 at 8:08 PM
    #2
    tacomaman06

    tacomaman06 Carolina Alliance: Enforcer

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    im honestly not too sure which plugs the 01-04 4cyl tacomas came with, but i do know the 2nd gen 4cyl tacomas have the iridiums from the factory. easiest thing to do will be to just go ahead and pull one plug and see what it is. then you'll know if you need to go ahead and change them or not......................and you can diy for way cheaper than what the stealer is going to charge you.:)
     
  3. Nov 29, 2008 at 8:35 PM
    #3
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    You need to change your plugs at 30,000 miles. Only the Second gen 2.7 has the "100,000" mile plugs.
    And Welcome to Tacoma World! :)
     
  4. Nov 29, 2008 at 8:43 PM
    #4
    humanoid

    humanoid bite me

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    Yup, what Chris said! You need to change your plugs out every 30K with the dual pronged/electrode ones.
     
  5. Nov 29, 2008 at 8:44 PM
    #5
    rob mcnair

    rob mcnair [OP] New Member

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    Thanks for the help and the welcome.
     
  6. Nov 29, 2008 at 8:45 PM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    I dont think the 2.7 uses a twin electrode, just the 3.4. :)
     
  7. Nov 29, 2008 at 8:50 PM
    #7
    humanoid

    humanoid bite me

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    Damn, I sell my truck less than a month ago and my brain turns to swiss cheese all of a sudden. :eek:
     
  8. Nov 29, 2008 at 8:53 PM
    #8
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    LOL, I forget things more than most. The only reason I remember is because, years ago, there was some debate on weather or not "clocking" the spark plugs gave any increase in performance. I spent a whole day takeing out the plugs, and makeing sure the electrode had the open end faceing the intake valves, and running the truck on the dyno. FWIW, there was no gain. :(
     
  9. Nov 29, 2008 at 8:54 PM
    #9
    rob mcnair

    rob mcnair [OP] New Member

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    Here's question number two, how in the freak do you get the ignition coils off. They look very delicate to me. I always changed my own plugs on my cars but these ignition coils are new to me.
     
  10. Nov 29, 2008 at 8:57 PM
    #10
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    They should have a nut on one side holding them on. If not, then just pull them off. :)
     
  11. Nov 29, 2008 at 10:12 PM
    #11
    tacomaman06

    tacomaman06 Carolina Alliance: Enforcer

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    well close.................i think its a 10mm bolt:D................just take it out and then unplug the sensor and pull out on it.........it'll come on outta there.
     
  12. Nov 30, 2008 at 5:49 AM
    #12
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    LMAO!!! You know what I meant! :eek:
     
  13. Nov 30, 2008 at 8:37 AM
    #13
    tacomaman06

    tacomaman06 Carolina Alliance: Enforcer

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    :D.....yeah, just funnin with ya bro!!!!!:laugh:
     
  14. Nov 30, 2008 at 1:02 PM
    #14
    srsupertrap

    srsupertrap Well-Known Member

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    I just finished replacing the spark plugs on my Tacoma 3.4 V-6, one cylinder bank had Denso's and the other NGK's. Someone was lazy.

    Here is my related question, my Taco has 104K and is equipped with the original OEM spark plug wires, should I be concerned? The truck was running good before hand and although I have not priced them I am pretty sure those OEM wires cost a bunch because of their unique design. I have used NGK wires on a Pathfinder and have been quite happy with them.

    So what's better 1) OEM or 2) NGK wires?
     
  15. Nov 30, 2008 at 1:18 PM
    #15
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    The 2 different plugs come like that from the factory. There is a slight difference in resistance between the 2, so Toyota uses a cheaper plug to save a bit of money. (From what an engineer friend of mine told me). If it were me, stick with the OEM wires for best results. The only Toyota engine I have seen show a gain with different wires has been the carberated 22R.
     
  16. Nov 30, 2008 at 1:33 PM
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    humanoid

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    I think NGK will be fine with the Taco, but IIRC the pricing for NGK and the OEM ones weren't too different.
     
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