Spark plug break off prevention / solution

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Aug 10, 2012 | 10:40 AM

Ben N

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Spark plug break off prevention / solution

I had first two spark plugs break off in my 2005 F150 before stopping. I ran five tanks of injector cleaner through using different brands of cleaner. The next six plugs removed without any issues.

Since then, I replaced 2 plugs after 25000 miles. Used one tank of injector cleaner and had no problem.

I would suggest that anyone planning on changing plugs run some injector cleaner through before the change. The cleaner seems to remove the carbon build-up around the plugs.

Aug 10, 2012 | 02:34 PM

tooldad

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Glad it worked for you. Most threads on this topic suggest doing one or two. I do it with every oil change (different brands) and Sea Foam just before plug change. Followed TSB and then some, and still broke off 7 of 8.

Sep 2, 2012 | 12:25 PM

blowin smoke

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Joined: Jul 2007

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From: BOSTON MA

I just changerd the plugs out on my 05. Just over 100k never put any additive in the fuel or oil. I used a 3/8 air impact gun and a shot of wd40, changed out all eight plugs with out an issue..

Sep 2, 2012 | 11:34 PM

guffster

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Plug Change

Been looking into doing it myself instead of dealer and seen another way besides the TSB.

Have seen some recommend using an air impact wrench.

Ford 5.4 Liter 3 Valve Spark Plug Removal - YouTube

Sep 3, 2012 | 07:27 PM

broncobilly66

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Sure looks easy.

Sep 11, 2012 | 04:15 PM

shawn001

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can you put a normal plug in once the originals have been removed, or only Ford (due to the odd length)?

I'm having ignition issues and after doing coils, it looks like I need to do the plugs (again) and am very affraid ....

Sep 11, 2012 | 07:52 PM

tooldad

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There is only one style plug that will work ("odd length"), though there are a few different brands. For me, I stick with Motorcraft SP515. If you followed the TSB (anti-seize) last time, you will likely be okay this time. I replaced mine a second time after ~20k miles with no problems at all.