Ford 5.4L broken plug issues

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jwillgym
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Ford 5.4L broken plug issues

Post by jwillgym » Fri Dec 08, 2017 12:24 am

After calling around town I discovered that the going price to change the plugs in my 2005 F150 5.4 is between $700 to over $1000. Thought that was pretty crazy so after a little research I found out it's because the plugs break off leaving the lower half in the head.
Decided to do it myself. I pulled the plugs with the engine hot and only broke two out of the eight pulled. Luckily the broken ones were cylinder #2 and #5, both easy to access. I used the Lisle broken plug removal tool that I bought in advance and removed the broken ones without issue. The total time spent was around two and a half hours due to access issues with the back plugs. I had also bought the odd ball plug socket when I bought the removal tool and plugs. The broken plug removal tool worked so well that there is really no need to be so careful about not breaking them because the tool removes the broken ones so easy.
So I guess I posted this in case any of you were going to spend the crazy price that's being charged, don't pay it, change them yourself. Just remember to have the broken plug tool on hand because you will need it...
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Re: Ford 5.4L broken plug issues

Post by Srasel79 » Fri Dec 08, 2017 6:14 am

Yeah I usually do an engine Decarbon 1st. That helps loosen up some of the carbon that likes to hold the ground Shield to the Head. I also Break them Free with a half-inch drive impact except for the two in the back I have to use a 3/8. Like you said if they're going to break they're going to break so might as well go for it. I spent hundreds of dollars on the different removal tools but the Lyle definitely works the best. [smilie=cheers1.gif]

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870Mike
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Re: Ford 5.4L broken plug issues

Post by 870Mike » Fri Dec 08, 2017 10:31 pm

Image
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Re: Ford 5.4L broken plug issues

Post by Srasel79 » Sat Dec 09, 2017 7:36 am

870Mike wrote:
Fri Dec 08, 2017 10:31 pm
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Yes!! But only on the ground electrode. I have seen plugs come loose because it was applied to the threads.

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870Mike
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Re: Ford 5.4L broken plug issues

Post by 870Mike » Sat Dec 09, 2017 8:43 am

Srasel79 wrote:
Sat Dec 09, 2017 7:36 am
870Mike wrote:
Fri Dec 08, 2017 10:31 pm
Image
Yes!! But only on the ground electrode. I have seen plugs come loose because it was applied to the threads.
??? Are you serious?
"Send lawyers & money...have enough guns." - 870Mike

Srasel79
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Re: Ford 5.4L broken plug issues

Post by Srasel79 » Sat Dec 09, 2017 8:50 am

Yeah. I know it sounds crazy and it goes against everything I was ever taught. I have seen quite a few that had an engine tick noise and it due to a loose plug. When I removed the plug it was covered in antisieze. After seeing that a few times I stopped applying it to the threads and only to the ground shield. The ground shield is what keeps the plug from coming out due to the interaction between the carbon and the aluminum head.

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870Mike
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Re: Ford 5.4L broken plug issues

Post by 870Mike » Sat Dec 09, 2017 3:20 pm

The proper (tiny) amount of anti-seize required is not going to cause a plug to loosen. An improperly torqued plug (or worn threads) will cause a plug to loosen.

DON'T apply anti-seize to air-cooled 911 spark plugs and let me know how that ends up... [smilie=014.gif]
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Re: Ford 5.4L broken plug issues

Post by Srasel79 » Sat Dec 09, 2017 6:07 pm

I agree

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Re: Ford 5.4L broken plug issues

Post by g.willikers » Sun Dec 10, 2017 3:54 pm

A little dab will do ya'.
On the threads, too, but don't over do it.
Especially with aluminum heads.
Cast iron, too come to think.
Rust holds spark plugs pretty good.
Just don't slather it on like butter on bread.
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Re: Ford 5.4L broken plug issues

Post by kmagnuss » Sun Dec 10, 2017 9:21 pm

Had this happen also. Replaced the plugs with a different type that's not supposed to break in half ever. Will know on the next change I guess... in 5 years or so.
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jwillgym
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Re: Ford 5.4L broken plug issues

Post by jwillgym » Tue Dec 12, 2017 2:11 am

I used the new 3rd generation motor-craft plug, it's now a one piece. 1st gen was two piece, 2nd gen was two piece spot welded and the spot wield apparently was causing some of them to fail. I also used anti-seize on the plug and dielectric grease on the boot.
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Springfield
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Re: Ford 5.4L broken plug issues

Post by Springfield » Fri Jan 05, 2018 11:12 pm

Here is a link to the Ford bulletin about this
http://www.rockauto.com/info/54PlugRemovaltsb208.pdf
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Re: Ford 5.4L broken plug issues

Post by JC9385 » Fri Jan 26, 2018 9:14 am

Those were a nightmare when I was writing service at Ford. Work was easy but customers had the same reaction you had when you quote them the price. Glad you got yours done!

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