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Spark plug ideas

Discussion in 'Wrangler JK (2007-2017)' started by Billy1234, Jun 29, 2017.

  1. Jun 29, 2017 at 8:31 AM
    #1
    Billy1234

    Billy1234 [OP] Well-Known Member

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    looking for good spark plugs that wont cost me a arm and a leg for my jku. Any ideas guys?
     
  2. Jun 29, 2017 at 9:08 AM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine Moderator

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    In my experience, oem is the beat
     
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  3. Jun 29, 2017 at 11:29 AM
    #3
    OFFGRID

    OFFGRID Well-Known Member

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    I completely agree with Chris, especially the older Jeeps. I once tried to put Bosch Platinum in my CJ and it wouldn't idle. Went back to the $1.29 Autolite coppers and ran like a champ.
     
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  4. Jun 29, 2017 at 2:52 PM
    #4
    Billy1234

    Billy1234 [OP] Well-Known Member

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    Thanks guys im just hitting 75k on my jeep figured its time to change them out any ideas on good wires for them?
     
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  5. Jun 29, 2017 at 7:30 PM
    #5
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine Moderator

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    Check to see if you even need them. Many times, just a plug change is fine.
     
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  6. Jun 29, 2017 at 8:21 PM
    #6
    JKBob 25

    JKBob 25 Well-Known Member

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    Agreed. Plugs these days will last numerous year. Their are, I guess you can say they are self relieghtent. I'm sure that's spelled wrong. F'ed up auto spell. But yes. As Chris 4x4 stated. Could just be 1 plug. If you don't get a code. It's usually some thing minor. Always check your gas cap.
     
  7. Aug 11, 2017 at 5:04 PM
    #7
    SCSPerformance

    SCSPerformance Member Vendor

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    From what I understand about spark plug wires, they will last until they don't. It's not really a wear item like tires per-say. As for plugs, sticking with OEM is best as Chris mentioned, but Autolite copper plugs can work fine too. Just be sure to get the right heat range and remember that copper plugs need replacing more often. I generally go 10-12k miles on copper plugs.
     
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  8. Aug 12, 2017 at 6:41 AM
    #8
    Billy1234

    Billy1234 [OP] Well-Known Member

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    Well did soark plugs n wires today but its still miss firing now it says p0300 multiple missfire. Anyideas? Or do i gotta drive it a little?
     
  9. Aug 12, 2017 at 7:15 AM
    #9
    JKBob 25

    JKBob 25 Well-Known Member

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    Billy. Maybe you misrouted the wires. That's the first thing that comes to mind. Especially if you have a multiple misfire code. Check your wiring first.
     
  10. Aug 12, 2017 at 7:19 AM
    #10
    Billy1234

    Billy1234 [OP] Well-Known Member

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    Honestly that crossed my mind after i put it back together lol im doing all this and the rocklights today they should be hdooked up by tonight hopfully. Heres a sneak peak of the spots for them IMG_1435.jpg and this is what one of the plugs looked like IMG_1434.jpg
     
  11. Aug 12, 2017 at 7:24 AM
    #11
    JKBob 25

    JKBob 25 Well-Known Member

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    Wow. If they all looked like that. Jeep should run like it's brand new after the plug change. :)
    I Googled wiring diagrams. But I'm not sure what engine you have.
     
  12. Aug 12, 2017 at 7:26 AM
    #12
    Billy1234

    Billy1234 [OP] Well-Known Member

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    3.8L v6 i dont think its the penastar. i think that started in 2012 im not sure tho and they were all pretty bad
     
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  13. Aug 12, 2017 at 8:20 AM
    #13
    Billy1234

    Billy1234 [OP] Well-Known Member

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    @JKBob 25 and im mess with these lights i have to make my harness wires longer... so much fun!!!!!:frusty::help:lol
     
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  14. Aug 12, 2017 at 8:42 AM
    #14
    aggrex

    aggrex Well-Known Member

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    Never seen sparkplugs at that stage....well at least they're dry. Expect some improvements in pep + mpg when replaced. Decent progress on the rock lights.
     
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  15. Aug 12, 2017 at 9:21 AM
    #15
    Billy1234

    Billy1234 [OP] Well-Known Member

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    @aggrex its misfiring like crazy im ganna play with the spark plug wireing soon. Heres a new update useing old work cords im finding the pos/negative wires and taking them out. Its coming along ok still on first light IMG_1454.jpg
     
  16. Aug 12, 2017 at 10:06 AM
    #16
    Billy1234

    Billy1234 [OP] Well-Known Member

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    I got power to the switch but not to the light? Im think i mixed up wires when making the cord bigger
     
  17. Aug 12, 2017 at 10:17 AM
    #17
    Billy1234

    Billy1234 [OP] Well-Known Member

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    Wires mixed up first light done
     
  18. Aug 12, 2017 at 10:18 AM
    #18
    Billy1234

    Billy1234 [OP] Well-Known Member

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  19. Aug 12, 2017 at 10:28 AM
    #19
    Billy1234

    Billy1234 [OP] Well-Known Member

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    And misfire went away a little atleast it gets out of its own way now lol
     
  20. Aug 12, 2017 at 11:34 AM
    #20
    Billy1234

    Billy1234 [OP] Well-Known Member

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    Prolly going threw the side would be best for the rear lights?
     

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