1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

3.4 Denso Dual Electrode Gapping

Discussion in '1st Gen. Tacomas (1995-2004)' started by whitetaco01, May 12, 2015.

  1. May 12, 2015 at 7:59 PM
    #1
    whitetaco01

    whitetaco01 [OP] Well-Known Member

    Joined:
    Jun 23, 2010
    Member:
    #39377
    Messages:
    468
    Gender:
    Male
    So Cal
    Vehicle:
    01 Prerunner
    Mid Travel Stuff
    Planning to replace the spark plug wires along with the plugs on my 01 3.4l. Well overdue at 115,000. I went to the dealer and bought 6 of the Denso k16tr11. There seems to be some debate on whether these need to be gapped or not. Guy at the dealer says they come pre-gapped but I can see some slight variations between the plugs. I have the normal dial gapper but not sure if it accurately measures these dual electrode plugs. Any input?
     
  2. May 12, 2015 at 8:34 PM
    #2
    Styx586

    Styx586 Well-Known Member

    Joined:
    Apr 13, 2011
    Member:
    #54822
    Messages:
    2,095
    Gender:
    Male
    First Name:
    Terrance
    Lake Elsinore, Ca
    Vehicle:
    2013 Tacoma DCLB TRD Sport, 2001 Tacoma TRD Off-Road
    I think you need a special type of gapping tool for the dual electrode plugs... I didn't gap them when I did mine. I've had no issues...
     
  3. May 12, 2015 at 8:39 PM
    #3
    roehoe72

    roehoe72 Well-Known Member

    Joined:
    Jan 4, 2009
    Member:
    #12229
    Messages:
    446
    Gender:
    Male
    First Name:
    Dan
    Vacaville, CA
    Vehicle:
    04 dc prerunner v6 trd
    X2 minus the special tool as i have NO clue about that
     
  4. May 12, 2015 at 9:40 PM
    #4
    opteron

    opteron Well-Known Member

    Joined:
    May 27, 2014
    Member:
    #130756
    Messages:
    1,290
    Gender:
    Male
    whittier, CA.
    Vehicle:
    2003 DB 4x4 SR5
    Leer camper, bug-rug, fox suspension 2.0 rear, fox 2.5 front, BAMF sliders and LCA, TRD fake 3 piece rims
    It's a hook type gapper. Couldn't find one drove all over town. Most places didn't know it existed untill they looked in the catalog. Went to autozone, pepboys, Napa and sears, then I gave up. Just threw them in no issues with out double checking the cap. According to Napa they come pregapped because of the cover.
     
  5. May 13, 2015 at 1:15 AM
    #5
    Wyoming09

    Wyoming09 Well-Known Member

    Joined:
    Apr 24, 2015
    Member:
    #153833
    Messages:
    13,153
    Gender:
    Male
    New Tripoli Pa
    Vehicle:
    2000 Work truck 5 speed 4x4 3.4
    Super Springs
    I have never gaped any on the numerous spark plug changes on my 3.4 engines
     
  6. May 13, 2015 at 8:26 AM
    #6
    JJ04TACO

    JJ04TACO Well-Known Member

    Joined:
    Oct 12, 2013
    Member:
    #114311
    Messages:
    1,105
    Gender:
    Male
    First Name:
    Jim
    Dallas
    Vehicle:
    04 White DC/TRD
    Fox 2.5 RR front, 2.0 RR rear from AccuTune Offroad, OME Dakar Leafs, Camburg Uniball UCA's, CBI Offroad Bolt on Sliders w/kickout, Scangauge II Uniden Bearcat 880 w/ 3' Firestick on CBI antenna mount B&M Trans Cooler
    I made the mistake of measuring and misreading the gap on a few dual electrode plugs. I gaped two or three until i noticed that the electrodes had a slight curve to them which made them difficult to read with the tool I was using. I grabbed a feeler gauge and measured straight across an unadjusted plug and attempted to reset the gap to that. No issues with driveability, but I was a bit pissed...
     
  7. May 13, 2015 at 8:32 AM
    #7
    whitetaco01

    whitetaco01 [OP] Well-Known Member

    Joined:
    Jun 23, 2010
    Member:
    #39377
    Messages:
    468
    Gender:
    Male
    So Cal
    Vehicle:
    01 Prerunner
    Mid Travel Stuff
    Consensus seems to be trust the manufacturer and just throw them in there. Yikes!
    I'll update with my results
     
  8. May 15, 2015 at 9:37 AM
    #8
    ThunderOne

    ThunderOne Well-Known Member

    Joined:
    May 20, 2009
    Member:
    #17473
    Messages:
    9,729
    First Name:
    Mitchell
    Nashville
    Vehicle:
    1ST GEN OR GTFO
    PlastiDERP
  9. May 16, 2015 at 4:51 PM
    #9
    opteron

    opteron Well-Known Member

    Joined:
    May 27, 2014
    Member:
    #130756
    Messages:
    1,290
    Gender:
    Male
    whittier, CA.
    Vehicle:
    2003 DB 4x4 SR5
    Leer camper, bug-rug, fox suspension 2.0 rear, fox 2.5 front, BAMF sliders and LCA, TRD fake 3 piece rims
  10. May 16, 2015 at 5:53 PM
    #10
    Styx586

    Styx586 Well-Known Member

    Joined:
    Apr 13, 2011
    Member:
    #54822
    Messages:
    2,095
    Gender:
    Male
    First Name:
    Terrance
    Lake Elsinore, Ca
    Vehicle:
    2013 Tacoma DCLB TRD Sport, 2001 Tacoma TRD Off-Road
  11. May 17, 2015 at 4:48 PM
    #11
    ThunderOne

    ThunderOne Well-Known Member

    Joined:
    May 20, 2009
    Member:
    #17473
    Messages:
    9,729
    First Name:
    Mitchell
    Nashville
    Vehicle:
    1ST GEN OR GTFO
    PlastiDERP
  12. May 18, 2015 at 10:03 AM
    #12
    keakar

    keakar Well-Known Member

    Joined:
    Oct 2, 2014
    Member:
    #139537
    Messages:
    5,259
    Gender:
    Male
    First Name:
    karl
    louisiana
    Vehicle:
    2006 4runner sport 4.7L V8 (white)
    used to have - 99 2.4L I4 5 lug & 04 prerunner v6
    yes I would agree with the caution that check them anyway and if they are more then just a little off, return it and get another plug, if they are close then go with it as-is
     
  13. May 18, 2015 at 10:09 AM
    #13
    scocar

    scocar Prebunking

    Joined:
    Nov 11, 2009
    Member:
    #25814
    Messages:
    37,056
  14. May 18, 2015 at 3:54 PM
    #14
    ThunderOne

    ThunderOne Well-Known Member

    Joined:
    May 20, 2009
    Member:
    #17473
    Messages:
    9,729
    First Name:
    Mitchell
    Nashville
    Vehicle:
    1ST GEN OR GTFO
    PlastiDERP
    Where did you get a gap tool with a .043 measurement? I haven't had much luck skimming the web.
     
    Last edited: May 18, 2015
  15. May 18, 2015 at 4:01 PM
    #15
    scocar

    scocar Prebunking

    Joined:
    Nov 11, 2009
    Member:
    #25814
    Messages:
    37,056
    I wish I could tell you. I've had it so long, I have no clue.
     
  16. May 18, 2015 at 6:01 PM
    #16
    ThunderOne

    ThunderOne Well-Known Member

    Joined:
    May 20, 2009
    Member:
    #17473
    Messages:
    9,729
    First Name:
    Mitchell
    Nashville
    Vehicle:
    1ST GEN OR GTFO
    PlastiDERP
    Aw :(
     
  17. Jun 8, 2015 at 10:07 AM
    #17
    whitetaco01

    whitetaco01 [OP] Well-Known Member

    Joined:
    Jun 23, 2010
    Member:
    #39377
    Messages:
    468
    Gender:
    Male
    So Cal
    Vehicle:
    01 Prerunner
    Mid Travel Stuff
    The factory plugs were definitely out of spec. Ending up gapping them as best as I could, no problems or CEL.
     
  18. Jun 8, 2015 at 10:18 AM
    #18
    keakar

    keakar Well-Known Member

    Joined:
    Oct 2, 2014
    Member:
    #139537
    Messages:
    5,259
    Gender:
    Male
    First Name:
    karl
    louisiana
    Vehicle:
    2006 4runner sport 4.7L V8 (white)
    used to have - 99 2.4L I4 5 lug & 04 prerunner v6
  19. Jun 9, 2015 at 12:35 PM
    #19
    ThunderOne

    ThunderOne Well-Known Member

    Joined:
    May 20, 2009
    Member:
    #17473
    Messages:
    9,729
    First Name:
    Mitchell
    Nashville
    Vehicle:
    1ST GEN OR GTFO
    PlastiDERP

Products Discussed in

To Top