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Thread: When to Change Spark Plugs on Hemi?

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  1. #1
    Senior Member Getting Dirty
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    Ooops. OK. I'll do all 16. Seems like my dealer may have mentioned that. I service it at the same dealer all the time. Oh well, my bad.
    2007 XK Limited, 5.7L Hemi, QDII, Rusty's 2" lift, Spidertrax 1.5 inch wheel spacers, GetLost4x4's front hitch mount for portable winch.GY Duratracs 265/70R17s, Rola Roof Rack.

  2. #2
    Super Moderator Getting Dirty 07JeepXK's Avatar
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    Your deffinately a little over due for some new plugs. Maybe you'll even see an increase in gas mileage when you swap them out.
    2007 4.7 Liter XK | Front Modified OME HD Lift | Rear 4" Superlift | JBA UCA's | Rusty's Rear Adjustable Track Bar | Rysty’s Adjustable Upper and Lower Rear Control Arms w/Heim Joints | Mickey Thompson Classic III 17x9 Wheels | 315/70R17 Goodyear Duratracs | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front Electronic Locker | Rear Heat/AC Delete

  3. #3
    Senior Member Getting Dirty
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    Well, I've done a good job of other maintenance, fluids and brakes. Time to get this handled. Color me red.
    2007 XK Limited, 5.7L Hemi, QDII, Rusty's 2" lift, Spidertrax 1.5 inch wheel spacers, GetLost4x4's front hitch mount for portable winch.GY Duratracs 265/70R17s, Rola Roof Rack.

  4. #4
    Senior Member Getting Dirty
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    Just got back from getting new plugs. I had forgotten that I had them done at 50,000 miles, so not as bad as I thought.
    2007 XK Limited, 5.7L Hemi, QDII, Rusty's 2" lift, Spidertrax 1.5 inch wheel spacers, GetLost4x4's front hitch mount for portable winch.GY Duratracs 265/70R17s, Rola Roof Rack.

  5. #5
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    Quote Originally Posted by GPintheMitten View Post
    Just got back from getting new plugs. I had forgotten that I had them done at 50,000 miles, so not as bad as I thought.
    Then I guess you are not a far overdue as you originally thought. If you think about it take some photos of the plugs you remove so we can see what they look like after 35,000 miles.

    And if you feel like making a "How To Change Hemi Spark Plugs" thread for the tech section we would all be greatful!

  6. #6
    Senior Member Getting Dirty
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    What I meant was I just got back from the dealer and had them put new plugs in. Sorry 'bout that. I did think on the way home I should have asked to see the old plugs.
    2007 XK Limited, 5.7L Hemi, QDII, Rusty's 2" lift, Spidertrax 1.5 inch wheel spacers, GetLost4x4's front hitch mount for portable winch.GY Duratracs 265/70R17s, Rola Roof Rack.

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