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Spark plug/wires change?

This is a discussion on Spark plug/wires change? within the 4.0 V6 Tech forums, part of the General Tech & Engine Section category; I've got 80K on my '99 4.0L ranger and I've never changed the plugs or the wires. Is this something ...

  1. Jul 20 2004, 03:57pm #1
    scaredsilly
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    Spark plug/wires change?

    I've got 80K on my '99 4.0L ranger and I've never changed the plugs or the wires. Is this something I should just do periodically, or only when I start having problems?
    1999 Ford Ranger XLT 4x4 4.0L OHV extended-cab

    2003 YZ450F
    2002 ZR7S
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  2. Jul 20 2004, 04:44pm #2
    98infinity
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    I did plugs at 75km on my truck and it got better gas miles and I have yet to change the wires I have them Im just lazy
    I AM CANADIAN!
    1998 Ford Ranger Splash 4x4, K&N filter,8mm Taylor Wires, TYC Carbon Fiber Tail lights, Diamond clear corners, JVC El-kameleon, 4 Infinity 6x8, 10" Alpine Type-R, P3001 Rockford Amp 420 Watts RMS, Custom decals done by www.sidefx.ca
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  3. Jul 20 2004, 06:10pm #3
    FordRangerFan17
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    it definetely cannot hurt, and seeing as to how you can get a set of awesome JBA spark plug wires from truckperformance.com for around $50-65 or something, it's something you should do after that many miles. While you're at it, also change the plugs, if you've got a bumpy idle or are not getting the performance/gas mileage you'd expect, this is a great starting point to build from.
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  4. Jul 20 2004, 07:29pm #4
    Zoom
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    I'd change the plugs soon. They might fire for 100K miles, but good luck getting them out with that kind of miles on them. And breaking one off, especially that passenger side rear plug, is something you don't want to have to fix.
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    2003 Ranger XLT, 4x2, 4.0 SOHC, Auto, 3.55's, Bright Red
    MAC intake, Billet Grill, Extang RT Tonneau, clear corners, auto down passenger side window, explorer console, bucket seat conversion, Powertrax No-Slip, Perma-Cool 2950 cfm efan, James Duff Traction Bars, Dual Program Apten Chip, JBA Headers, Roush dual exhaust

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  5. Jul 21 2004, 07:46am #5
    scaredsilly
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    I can't seem to find the JBA wires on truckperformance.com. Link anyone? Is this a vehicle specific application or general ('99 4.0L V6)? Also, I'm thinking motorcraft platinum plugs. Good? Thanks for all the help all...
    1999 Ford Ranger XLT 4x4 4.0L OHV extended-cab

    2003 YZ450F
    2002 ZR7S
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  6. Jul 21 2004, 10:21am #6
    FordRangerFan17
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    JBA Spark Plug Wires $56

    Actually you know what, they show them for my 97 but not for your 99. Is there a difference in the firing order or anything ignition related between the two years?
    1997 Auto XLT V6 4.0 Standard Cab 2WD 3:55 Gears

    PERFORMANCE: Street Smart Design Intake...Pro-M 70mm MAF w/ modified bridge...BBK 66mm Throttle Body...Flowmaster 40-Series Dual Exhaust......B&M Electronic Shift Kit......Zirgo 3300cfm Electric Fan
    EXTERIOR: Billet Grill...Clear Corners...Acetoned RANGER emblems...Sylvania Silverstar Headlight Bulbs...Black Rear Ford Emblem...Lund Tonneau Cover...Tailight Covers
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  7. Jul 21 2004, 04:10pm #7
    98infinity
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    they have them for my 98 and the 99 are the same I think
    I AM CANADIAN!
    1998 Ford Ranger Splash 4x4, K&N filter,8mm Taylor Wires, TYC Carbon Fiber Tail lights, Diamond clear corners, JVC El-kameleon, 4 Infinity 6x8, 10" Alpine Type-R, P3001 Rockford Amp 420 Watts RMS, Custom decals done by www.sidefx.ca
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  8. Jul 22 2004, 06:46am #8
    Wed Turner
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    Originally posted by FordRangerFan17
    JBA Spark Plug Wires $56

    Actually you know what, they show them for my 97 but not for your 99. Is there a difference in the firing order or anything ignition related between the two years?
    Nope they will fit just fine.
    4 vehicles and a boat in the driveway and a garage half full of boxes...
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  9. Jul 22 2004, 07:39am #9
    scaredsilly
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    Thanks all, I ordered the '97s
    1999 Ford Ranger XLT 4x4 4.0L OHV extended-cab

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    2002 ZR7S
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  10. Jul 22 2004, 09:59am #10
    FordRangerFan17
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    yay~! careful when you install them, i melted the #5 plug wire on my exhaust manifold. Just make sure that none of the slack in the wire let's it hang down too low. JBA is sending me a new one, should be here any day, great customer service!
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