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  1. #1
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    Spark Plug Replacement 3.5L?

    Are there any spark plug replacement threads for a v6? I know theres one for a v8

    since this will be my first time doing this i need some guidance.



  2. #2
    Join Date
    Feb 2008
    Location
    Oshawa Ontario
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    3.5L
    Always remove the ignition coil assembly by grasping
    at the spark plug boot, turning the assembly 1/2 turn
    and pulling straight back in a steady motion.
    1. Disconnect the negative battery cable.
    2. Remove the intake manifold, (Refer to 9 - ENGINE/
    MANIFOLDS/INTAKE MANIFOLD - REMOVAL).
    3. Prior to removing the ignition coils, spray compressed
    air around the coil area and spark plug or
    contaminates from spark plug tube..
    On 3.5L engines, it is necessary to loosen the screws
    by alternating back and forth. Do not lose the spacers
    under the coil when loosening the screws.
    4. Remove the ignitions coil.
    5. Remove the spark plug using a quality socket with
    a rubber or foam insert.
    6. Inspect the spark plug condition.
    REMOVAL
    UPPER INTAKE MANIFOLD
    1. Disconnect negative battery cable.
    2. Disconnect the IAT sensor electrical connector.
    3. Remove air inlet hose from the throttle body.
    4. Disconnect the MAP sensor electrical connector.
    9. Disconnect electrical connectors from the Manifold
    Tuning Valve (MTV) and Short Runner Valve
    9. Disconnect electrical connectors from the Manifold
    Tuning Valve (MTV) and Short Runner Valve
    10. Remove the right intake manifold support brackets.
    11. Remove the upper intake manifold retaining bolts, insulation foam pad and manifold. Clean all gasket sealing
    surfaces.
    As a note it has been found that un-bolting the factory strut brace (square tube at the cowl) and blocking it up outta the way allows clearance to get the upper intake up and over the tranny fill tube.
    2006 Lil Red Wagon SXT
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  3. #3
    Join Date
    Aug 2004
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    Ocala, Florida :-)
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    Original 3.5 plugs are good for 100,000 miles............. are you there yet??

    Bob
    Bob in Ocala, Florida, 05' Magnum RT, 74 years young - married 53 years. Superchips tuner & Flowmaster 40's. 402 Motoring rear spoiler, mud flaps, tinted & painted tail lights. Danko shaker hood, 69' Charger grille, front spoiler, rear diffuser.

  4. #4
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    im at 75k but i drive my car w/ a heavy foot all the time so i think im due already

  5. #5
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    Quote Originally Posted by blackmagnum06 View Post
    im at 75k but i drive my car w/ a heavy foot all the time so i think im due already
    Here are pics of my intake manifold off when I changed the plugs for my S/C install if you need a reference..........





    To make it easier to remove the upper intake manifold, remove the strut bar completely.........My pics show it proped up, but it is MUCH easier to pull the manifold over the transmission fluid tube without the brace in the way..........

    I would suggest having a spare upper intake manifold gasket, and a spare EGR tube gasket on hand.............I used new gaskets when I replaced my plugs.........the EGR tube can be a B*tch to seat properly........if not seated properly you will get a vacuum leak..........I also used a little dab of anti-sieze compound on the plug threads..........
    2007 Silver Metallic Dodge Charger SRT8............The REAPER
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  6. #6
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    replace the EGR tube seal and gasket to prevent vacuum leaks.
    Last edited by fnkychkn; 02-03-2011 at 09:25 PM.
    Izzy pics

    ensure brain is in gear before engaging mouth.

  7. #7
    Join Date
    Jan 2008
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    LX & LC Nation, Brampton, Ontario
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    Talking

    Quote Originally Posted by fnkychkn View Post
    replace the EGR tube seal and gasket to prevent vacuum leaks.
    Listen to the chicken, a wise one he is.
    06 SXT AWD Magnum, Silver Steele Metallic: Chrysler's Red headed stepchild!!!

    I drive mine like I just left the bank after an unapproved forced permanent loan ...


  8. #8
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    Quote Originally Posted by fnkychkn View Post
    replace the EGR tube seal and gasket to prevent vacuum leaks.
    is there a part number for these?

  9. #9
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    Quote Originally Posted by blackmagnum06 View Post
    is there a part number for these?
    gasket P/N 5277928
    seal P/N 4591250

  10. #10
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    thanks u da man!!

  11. #11
    Join Date
    Aug 2009
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    LONG BEACH,CA
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    Hey blackmagnum06,
    Let me know the difficulty once u do it, im thinking about doing it since i have a heavy foot as well.

    Just have not clue.

    Thanks.


    WESTCOAST CALI MOPARS

  12. #12
    Join Date
    Aug 2009
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    Kent, Oh
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    Believe me Funky knows what he is talking about. My husband did not replace the gasket and seal and car had a vacuum leak. The next weekend he had a tear my car apart again to replace those parts. Not fun.
    2010 CHALLENGER SRT8 AUTO, ARRINGTON 426, P&P HEADS, 645 CAM, CUSTOM 12.5-1 MAHLE PISTONS, CUSTOM PUSHRODS, 90mm TB, P&P STAGE 1 MANIFOLD, BB CONVERTER, VALVE BODY & DRIVE SHAFT, 1400HP AXLES, HEADLIGHT CAI, 391 GETRAG, 90/10 SHOCKS & V6 SPRINGS, TUNED BY HEMITUNER AJ, CAR PB 10.90 @ 124.57, MY PB 11.03 @ 121.65 1.44 60'


  13. #13
    Join Date
    Mar 2008
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    Lusby, MD USA
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    Ok, so the gasket and seal you're talking about Fnky & Skullboy, are those just for the EGR? Or are you talking about the EGR and the gasket between the upper and lower manifold? I'll be doing this in the near future.. Sure wishing I had a ported/polished LIM to install at the same time..

    TIA!

    eGo

    Who Farted? BEANIE!!!
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  14. #14
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    Quote Originally Posted by eGo View Post
    Ok, so the gasket and seal you're talking about Fnky & Skullboy, are those just for the EGR? Or are you talking about the EGR and the gasket between the upper and lower manifold? I'll be doing this in the near future.. Sure wishing I had a ported/polished LIM to install at the same time..

    TIA!

    eGo
    Both the EGR and upper intake manifold gasket (the one between the upper & lower intake manifolds) should be replaced..............they are like a rubber/silicone type seal........

  15. #15
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    Quote Originally Posted by eGo View Post
    Ok, so the gasket and seal you're talking about Fnky & Skullboy, are those just for the EGR? Or are you talking about the EGR and the gasket between the upper and lower manifold? I'll be doing this in the near future.. Sure wishing I had a ported/polished LIM to install at the same time..

    TIA!

    eGo
    i've never had to replace the plenum gasket. it is reusable.
    the gasket i'm referring to is between the tube and the EGR valve.

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