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

Ignition coils

Discussion in '3rd Gen. Tacomas (2016+)' started by Jonny21, Mar 3, 2019.

  1. Mar 3, 2019 at 3:49 PM
    #1
    Jonny21

    Jonny21 [OP] New Member

    Joined:
    Mar 3, 2019
    Member:
    #285234
    Messages:
    3
    Gender:
    Male
    First Name:
    Yonatan
    Vehicle:
    2016 Tacoma TRD sport
    So I have a 2016 Toyota Tacoma TRD sport and I replaced all my ignition coils. Because one going bad and then the other one so I decide replace all of them. The truck was good for a while until I took it off road and was hauling ass then my check engine light came on. I took it to AutoZone so they can check the engine light and they said it was my ignition coil Number 3 and 5 and I also changed all the spark plugs to some good Long lasting spark plugs.

    So my question is why is my ignition coils going bad can anyone help me my truck has 53,000 miles.
     
  2. Mar 3, 2019 at 3:52 PM
    #2
    Rustytaco71

    Rustytaco71 Well-Known Member

    Joined:
    Sep 13, 2017
    Member:
    #229894
    Messages:
    1,315
    First Name:
    John
    Vehicle:
    2017 TRD Sport DCLB
    Luck of the draw, electronics are always a coin toss.
     
    12TRDTacoma likes this.
  3. Mar 3, 2019 at 6:01 PM
    #3
    Jonny21

    Jonny21 [OP] New Member

    Joined:
    Mar 3, 2019
    Member:
    #285234
    Messages:
    3
    Gender:
    Male
    First Name:
    Yonatan
    Vehicle:
    2016 Tacoma TRD sport
    What ?
     
    Carbender likes this.
  4. Mar 3, 2019 at 6:47 PM
    #4
    Grossomotto

    Grossomotto Complete 3rd Member

    Joined:
    Mar 13, 2018
    Member:
    #247175
    Messages:
    2,945
    39.9526° N, 75.1652° W
    Vehicle:
    2017 TRD 4WD V6 AC LB 6MT
    What was the code? Cylinder misfire? If so, it was probably bad spark plug(s).

     
    Dirtridercrf250 likes this.
  5. Mar 4, 2019 at 6:59 AM
    #5
    Jonny21

    Jonny21 [OP] New Member

    Joined:
    Mar 3, 2019
    Member:
    #285234
    Messages:
    3
    Gender:
    Male
    First Name:
    Yonatan
    Vehicle:
    2016 Tacoma TRD sport
    I don’t know what’s the code but, the cylinder that’s misfiring is 3 and I think 5 to. I already replaced all the spark plugs Like 3 weeks ago with some better ones then then original ones.
     
  6. Mar 4, 2019 at 7:05 AM
    #6
    knayrb

    knayrb Well-Known Member

    Joined:
    Mar 3, 2010
    Member:
    #32473
    Messages:
    1,481
    Gender:
    Male
    Somewhere in the square states
    Vehicle:
    2010 Dbl-Cab Off-Road
    Pure stock
    Question: did you trade one coil with another and see if the code changed? While it's totally possible that lady luck looked unfavorably upon you, 53K is way early for a coil to go bad. They are usually pretty solid. IMO, I would thing a bad spark plug or connector to the coil would be the issue.

    Also, OEM plugs are the best ones for our engine. I don't know of a better plug than the original OEM copper one for reliability and performance.
     
    r1200gs4ok, fdbyrne, stun gun and 2 others like this.
  7. Mar 4, 2019 at 7:17 AM
    #7
    luminous

    luminous Well-Known Member

    Joined:
    Dec 28, 2017
    Member:
    #239602
    Messages:
    113
    Define "better then the original ones". Spark plugs are not just something randomly chosen from a list. There are different temps, gaps, electrode styles, etc. which all change how the plug performs. Unless its a tuned/built engine and your builder states to use something different you should be using what was described in the service manual.

    Spending hundreds if not thousands on parts to blindly try and fix a problem is not how you are going to solve this. Read this: https://www.autoserviceprofessional...lug-ignition-the-art-of-cop-misfire-diagnosis you will need techstream. If you cant do this, or dont understand it just bring it to a shop (not a dealer) and tell them you have a miss fire. Dont clear the codes, leave them so they have something to work off of. If you can pay for techstream you can also pull toyotas official service info for troubleshooting the ignition system for this truck.
     
    12TRDTacoma, knayrb and Jonny21 [OP] like this.
  8. Mar 14, 2019 at 5:02 PM
    #8
    UH60 Mech

    UH60 Mech Active Member

    Joined:
    Aug 24, 2016
    Member:
    #195412
    Messages:
    26
    Gender:
    Male
    Vehicle:
    2016 4x4 TRD
    Anybody know the cylinder numbers so I can replace my crappy 2016 ignition coil too
     
  9. Mar 14, 2019 at 5:48 PM
    #9
    Markc1024

    Markc1024 Well-Known Member

    Joined:
    Sep 17, 2015
    Member:
    #164491
    Messages:
    389
    Gender:
    Male
    First Name:
    Mark
    Colorado
    Vehicle:
    2016 White DCLB TRD Sport
    Icon Front & Rear AAL
    Those should be under warranty still. I'd put the OEM ones back in and have the dealer diagnose/fix.
     
    toofast4u752 likes this.
  10. Mar 14, 2019 at 5:57 PM
    #10
    Arries289

    Arries289 Yo!

    Joined:
    Apr 17, 2018
    Member:
    #250874
    Messages:
    403
    Gender:
    Male
    Franklin TN
    Vehicle:
    2018 TRDOR DCSB BBP 6MT Tech & Prem
    Hopefully you used the OEM coils. There are a number of things that can cause a cylinder misfire. I second taking it back to Toyota.
     
  11. Mar 14, 2019 at 6:11 PM
    #11
    UH60 Mech

    UH60 Mech Active Member

    Joined:
    Aug 24, 2016
    Member:
    #195412
    Messages:
    26
    Gender:
    Male
    Vehicle:
    2016 4x4 TRD
    OEM coils.. warranty would be nice.. 67k miles
     
  12. Mar 14, 2019 at 6:13 PM
    #12
    UH60 Mech

    UH60 Mech Active Member

    Joined:
    Aug 24, 2016
    Member:
    #195412
    Messages:
    26
    Gender:
    Male
    Vehicle:
    2016 4x4 TRD
    I already changed the plugs. This pos has had a rough idle since 25k miles. Took to the dealer 3 times.. no computer code until 67k then I got p303, check engine light, trac control. Lost power (went into limp mode)
     
  13. Mar 14, 2019 at 6:15 PM
    #13
    UH60 Mech

    UH60 Mech Active Member

    Joined:
    Aug 24, 2016
    Member:
    #195412
    Messages:
    26
    Gender:
    Male
    Vehicle:
    2016 4x4 TRD
    Should have brought a tundra..
     
  14. Mar 14, 2019 at 6:15 PM
    #14
    bulalo

    bulalo Well-Known Member

    Joined:
    Oct 21, 2017
    Member:
    #233682
    Messages:
    483
    Vehicle:
    2017 trd offroad 4wd LB
    none at the moment
    CPS would be my guess after reading about its failure here .
     
    r1200gs4ok and Boghog1 like this.
  15. Mar 14, 2019 at 6:27 PM
    #15
    UH60 Mech

    UH60 Mech Active Member

    Joined:
    Aug 24, 2016
    Member:
    #195412
    Messages:
    26
    Gender:
    Male
    Vehicle:
    2016 4x4 TRD
    Thought about that too.. but CPS only one cylinder ?
     
  16. Mar 15, 2019 at 11:43 PM
    #16
    UH60 Mech

    UH60 Mech Active Member

    Joined:
    Aug 24, 2016
    Member:
    #195412
    Messages:
    26
    Gender:
    Male
    Vehicle:
    2016 4x4 TRD
    Changed ignition coil today.. fixed the problem. Runs a lot better. Idle still isn't 100 percent smooth all the time.. but night and day difference
     
  17. Mar 16, 2019 at 12:20 AM
    #17
    12TRDTacoma

    12TRDTacoma Pulley Man ;)

    Joined:
    Aug 20, 2012
    Member:
    #85133
    Messages:
    9,020
    Gender:
    Male
    First Name:
    Roberto
    Concord, CA
    Vehicle:
    12 TRD Sport DCLB 4x4 Tacoma
    Supercharged
    Geez... now Toyota's strategy is to throw you into limp mode when a misfire occurs? They really are trying to screw you dry now, no lube required by forcefully making you call a tow truck to pick you up and drop off the truck at a dealer now.

    Replace the bad coil and move on with your life. Use Denso or OE coils. If one fails the rest will follow suit shortly after.

    It appears that the modern electronics are being built more and more like crap now. This failure falls right in line with a Dodge Dart I ended up replacing one then shortly the rest of the coils (some 4000 miles later because a misfire came back on another cylinder) at around 45K... sometimes it is luck of the draw on how long that stuff will last.
     
  18. Mar 16, 2019 at 5:54 AM
    #18
    slowtacotruck

    slowtacotruck Well-Known Member

    Joined:
    Jul 29, 2017
    Member:
    #225354
    Messages:
    308
    Vehicle:
    17 offroad
    stuff
    What was the plug boot looking like and was there any carbon tracking on the plug or cracked ceramic? Some good dielectric grease is a must when installing plugs or coils.
     
  19. Mar 16, 2019 at 4:17 PM
    #19
    UH60 Mech

    UH60 Mech Active Member

    Joined:
    Aug 24, 2016
    Member:
    #195412
    Messages:
    26
    Gender:
    Male
    Vehicle:
    2016 4x4 TRD
    12trd sport. The point of the forum is to share common problems.. (do I think) no kidding just replace . That is only partially the point. Sharing information on whether or not it fixes the problem or if there are more related problems is equally important. Additionally, you pay a bit of a premium when you buy a toyota based on reliability.. since this is my 3rd. Tacoma. Replacing ignition coils at 67k miles is a little aggravating. I realize I have to filter through all the obnoxious people to get feedback from people that are genuinely trying to help one another down.. just a few less obnoxious people would be nice.
     
  20. Mar 16, 2019 at 4:23 PM
    #20
    UH60 Mech

    UH60 Mech Active Member

    Joined:
    Aug 24, 2016
    Member:
    #195412
    Messages:
    26
    Gender:
    Male
    Vehicle:
    2016 4x4 TRD

Products Discussed in

To Top