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  1. #1
    Member Hydrasports196's Avatar
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    Ford Triton 5.4 L spark plugs

    Anyone had the plugs changed on this engine?
    Ford says every 100,000 miles, my mechanic says 30,000 and price is $400.00 to $1000.00!
    Seems these plugs seize in the aluminum head and break off some times requiring the heads be taken off to remove the plugs!
    Mike Pruett
    Carolina Skiff
    75 HP Optimax
    2007 Ford Expedition EL

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  3. Member lwabirds's Avatar
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    #2
    My neighbor was quoted a ridiculous price to have his changed for that reason. It's keeping him from buying another ford.

  4. Member Especial Bryanmc57's Avatar
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    #3
    They'll go 100k. It's very important to make sure the threads are cleaned and the plugs are properly torqued when they're installed.

  5. Member
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    #4
    There are new tools made specifically to remove broken spark plugs in Fords. I believe you could buy one and do it yourself for less. If it was me, I think I'd sell it first, I think the trouble is Ford uses an Autolite plug made by a Ford subsidiary which breaks easily. Some manufacturers do not recommend anti-sieze on their spark plugs with aluminum heads but I will always use it. I changed my Chevy Silverado P.O.S. plugs at 100,000 miles they looked new.

  6. Member dreaminbig's Avatar
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    #5
    I just had mine changed yesterday with 88,000 miles on my Expedition. The shop I used is one of the best around here, IMO. They didn't try to screw me like some of the other places I qouted at over $800. They changed mine including 2 broken plugs plus it needed 1 coil which was causing most of the missing in mine. All this was $401 out the door. Runs perfect now!!!

    Edit: They DO NOT have to remove the heads. They have a tool that will easily remove the broken plugs. Take it to a decent shop and they will have the tool.
    2001 CX1860 90HP JOHNSON

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    #6
    What year 5.4L???


    Anything after 2006 should be good they went to a one piece plug...

  8. Member dreaminbig's Avatar
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    #7
    Quote Originally Posted by brnzbaklvr View Post
    What year 5.4L???


    Anything after 2006 should be good they went to a one piece plug...
    The OP's sig says his is an 07. Mine is an 06.
    2001 CX1860 90HP JOHNSON

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    #8
    I had the 2004 5.4L and had 3 break off and total cost was around 500 dollars

  10. Member havacman's Avatar
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    #9
    2006 f150 5.4 changed my plugs at 75,000 by a ford dealer charged me just a little over $300.00. they also changed the boots for them i had the do it yourself kit and plugs just decided not to fool with them. that is the only money i have ever spent on the truck other than the window lock switch i took apart and cleaned myself. i definately wouldn't sell my truck over spark plugs. we have two 2007 cheverolet 3/4 ton trucks at work and they have spent a lot of money on them one just turned 100,000 the other one has yet to reach 100,000. the repairs on those two were major i will keep my 5.4 triton.

  11. Member
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    #10
    DIY but, I'd do em' at 70 to 80K because of the known problem.
    When I reinstall I use a drop of antisieze.
    And keep an eye on the top of the coils for cracks...this causes the coil to short out and cause misses. If you see one with cracks, replace it AND the plug at the same time. Never replace the coil without the plug.
    TeeBoy

  12. Jas
    Jas is offline
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    #11
    A good friend of mine had one of his plugs break while going down the road. He had to be towed in and it cost him $700 to get it fixed. It happened again about 2 years later and this time he sold it as is.

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    #12
    Changed mine at 100k miles on a 2006 F-150. The shop broke 6 off. Cost right at $600 to do mine.
    I don't know where we are, but we are making darn good time.

  14. Member AirForceAngler's Avatar
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    #13
    Sounds like it's time to trade for some kind of non-Ford product!
    __________________________________________________ _____________
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    2000 Sylvan Adventurer 1900 w/Merc 125
    USAF 1985 - 2006 NKAWTG!

  15. Member havacman's Avatar
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    #14
    Quote Originally Posted by AirForceAngler View Post
    Sounds like it's time to trade for some kind of non-Ford product!
    I am equal opportunity when it comes to vehicles. Ford, chevy, dodge. The cheverolet is 2010 malibu 32,000 miles had it since it had 15 miles on it been in the shop average of 4-5 times every year to get something repaired. So for me there will be no more chevrolets, which was my favorite several years ago.

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    #15
    They'll go 100k easy. That new breakage shouldn't be an issue.

  17. Member
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    #16
    Breaking plugs is better then the early 97 - 99 which blew the plugs out of the heads. Ask me how I know.

  18. Member
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    #17
    I had a 2004 5.4L and all 8 of mine broke. Bought the tool to remove the broke piece off of ebay for around $60 and done them myself. Followed the directions that came with the tool and everything went smooth. I also bought a small ShopVac at Walmart and the small extension tools to suck out anything that might have fallen in to the engine. Just took a few hours once I had everything in place.

  19. Member Especial Bryanmc57's Avatar
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    #18
    Quote Originally Posted by rangerjoe View Post
    Breaking plugs is better then the early 97 - 99 which blew the plugs out of the heads. Ask me how I know.
    Same way I do probably

  20. Member huston's Avatar
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    #19
    I had mine done in my 2002 5.4 right before 100,000 miles last year. I thought about doing it myself and after research into the procedure, I gave it to the dealer. This engine has no spark plug wires since the plugs have a coil for each one right on top of them. Fuel rails and O rings come into this procedure also. My Ford dealer had no problem and it was money well spent, around $300.00. Truck has been good to me. Plugs are 100,000 mile plugs. My rear differential is leaking a little and I may change that oil and put a gasket on it. dealer wants around $160.00 and I buy the gasket since Ford uses a sealant instead of a gasket.

  21. Member MikeFloyd's Avatar
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    #20
    Quote Originally Posted by dreaminbig View Post
    I just had mine changed yesterday with 88,000 miles on my Expedition. The shop I used is one of the best around here, IMO. They didn't try to screw me like some of the other places I qouted at over $800. They changed mine including 2 broken plugs plus it needed 1 coil which was causing most of the missing in mine. All this was $401 out the door. Runs perfect now!!!

    Edit: They DO NOT have to remove the heads. They have a tool that will easily remove the broken plugs. Take it to a decent shop and they will have the tool.
    Ditto that; with the tool it takes 15 minutes if you break the plug.
    There is no spoon.

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