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

Replaced plugs and wires, truck not starting

Discussion in '1st Gen. Tacomas (1995-2004)' started by freebird4446, Apr 15, 2019.

  1. Apr 15, 2019 at 10:03 PM
    #1
    freebird4446

    freebird4446 [OP] Well-Known Member

    Joined:
    Mar 19, 2015
    Member:
    #151288
    Messages:
    51
    Gender:
    Male
    First Name:
    Pete
    Boston, MA
    Vehicle:
    2003 3.4L V6 250k miles
    I just replaced one spark plug and ignition coil because of my check engine light and the truck started up fine. I then I replaced the remaining 5 spark plugs and put in new wiring and now the truck won't start. One it came very close to starting but then died. A few other times it also sounded for a very brief second that it might start. Not sure if it's potentially damaging to keep trying to start it.

    Batteries good, no vacuum leaks I'm could find, and replaced the wiring exactly as it was.
    5-->2
    3-->6
    1-->4


    I'm not sure where to start and I have to have this fixed by the end of the day tomorrow. Yikes.

    I bought pre-gapped daul ground plugs, the exact same that came with the car. I put the plugs in until they were snug as I have in other vehicles because I dont have a torqur wrench that goes that low. I was thinking the first step might be to take a plug out at a time and make sure it's firing, then check the gap. Does anyone know what its supposed to be? Not sure if there's a better place to start or what else to try. Thanks in advance.
     
    Last edited: Apr 15, 2019
  2. Apr 16, 2019 at 12:03 AM
    #2
    CS_AR

    CS_AR Well-Known Member

    Joined:
    Apr 3, 2019
    Member:
    #289019
    Messages:
    11,822
    Gender:
    Male
    Vehicle:
    1999 Tacoma PreRunner TRD
    Everything but the driveshaft. B03A - 410
  3. Apr 16, 2019 at 3:45 AM
    #3
    TheDamaso

    TheDamaso Well-Known Member

    Joined:
    Jan 9, 2017
    Member:
    #207092
    Messages:
    160
    Gender:
    Male
    First Name:
    Damaso
    Baytown TX
    Vehicle:
    98 2.7 4x4 5sp, 2014 TRD OR
    A badly gapped plug wouldn’t cause your truck to not start, just get shit milleage lol you unplugged something man, wiggle some wires and try again.
     
    freebird4446[OP] and CS_AR like this.
  4. Apr 16, 2019 at 3:59 AM
    #4
    Blue92

    Blue92 Well-Known Member

    Joined:
    Aug 26, 2017
    Member:
    #228071
    Messages:
    16,342
    Gender:
    Male
    First Name:
    Daniel
    North Carolina
    Vehicle:
    2004 4x4 2.7L
    What brand of plugs?
    My 22re wouldnt start with Bosch plugs. Put some Densos in it and it fired right up.
     
    freebird4446[OP] and CS_AR like this.
  5. Apr 16, 2019 at 6:18 AM
    #5
    freebird4446

    freebird4446 [OP] Well-Known Member

    Joined:
    Mar 19, 2015
    Member:
    #151288
    Messages:
    51
    Gender:
    Male
    First Name:
    Pete
    Boston, MA
    Vehicle:
    2003 3.4L V6 250k miles
    That's interesting. The new and old plugs are both DENSO K16TR11, box says they are made by Tacoma.Maybe I didn't connect something..

    I should've mentioned it's for a 2003 Tacoma V6 3.4l 4wd.
     
    CS_AR likes this.
  6. Apr 16, 2019 at 7:18 AM
    #6
    02hilux

    02hilux Paved roads not required

    Joined:
    Sep 14, 2016
    Member:
    #197244
    Messages:
    5,036
    Planet: EARTH
    If you're sure you didn't loosen any ground or connection, then swap the original wires back on and try to start it (cause you know the original wire work). I've seen poorly made wires even when it's new in box.
     
    CS_AR, TheDamaso and freebird4446[OP] like this.
  7. Apr 16, 2019 at 7:31 AM
    #7
    freebird4446

    freebird4446 [OP] Well-Known Member

    Joined:
    Mar 19, 2015
    Member:
    #151288
    Messages:
    51
    Gender:
    Male
    First Name:
    Pete
    Boston, MA
    Vehicle:
    2003 3.4L V6 250k miles
    I checked all the wires and they seemed snug. I had a ground wire on the drivers side that you can take off to make it easier to get to the plugs (bolts to the motor). It was loosely connected, thought that should've been enough for a ground connection but I tightened it up and the truck turned right on! Back in business :) Thanks for the advice everyone!
     
    TheDamaso, CS_AR and cruiserguy like this.
  8. Apr 16, 2019 at 8:36 AM
    #8
    CS_AR

    CS_AR Well-Known Member

    Joined:
    Apr 3, 2019
    Member:
    #289019
    Messages:
    11,822
    Gender:
    Male
    Vehicle:
    1999 Tacoma PreRunner TRD
    Everything but the driveshaft. B03A - 410
    Congratulations! Got to be well grounded. :)
     
    freebird4446[OP] likes this.
  9. Apr 16, 2019 at 2:03 PM
    #9
    TheDamaso

    TheDamaso Well-Known Member

    Joined:
    Jan 9, 2017
    Member:
    #207092
    Messages:
    160
    Gender:
    Male
    First Name:
    Damaso
    Baytown TX
    Vehicle:
    98 2.7 4x4 5sp, 2014 TRD OR
    Called it
     
    CS_AR and freebird4446[OP] like this.
  10. Apr 16, 2019 at 4:42 PM
    #10
    greengaint97

    greengaint97 Well-Known Member

    Joined:
    Jan 22, 2019
    Member:
    #280241
    Messages:
    285
    Gender:
    Male
    First Name:
    Al
    Colorado's Western Slope
    Vehicle:
    SOLD: 01' TRD xtra cab 3.4L five speeder
    I just changed my plugs and wires today (Denso plugs, NGK wires) and I do have two torque wrenches (ft/lbs and inch/lbs). An easy way I learned to gauge proper torque - and I tested this today - is to hand tighten the new plugs in their holes, then with the socket wrench attached, go from the 12 o'clock position to the 3 o'clock TWO times, then the final turn of the wrench is from the 1 o'clock to 3 o'clock position. This is roughly 13 ft/lbs of torque. This could be
    helpful for the future. And BTW the coils on the passenger side are 69 inch/lbs. :broccoli:


    Glad it starts again! That grounded lug can sure hide!
     

Products Discussed in

To Top