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03-30-2015, 11:42 PM | #7 |
Senior Member
Join Date: Aug 2012
Posts: 1,076
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Had the removal tool before I started .
Followed the Ford TSB. Cold, cracked them 1/4 turn and soaked overnight in PB. Went 7 for 8. Only broke 1 and it was #6, very easy to get to and it broke only the shell. The porcelain came out in 1 piece. Had 98,000 miles on them. Won't go that long again. 60K - 70K and I'll change them again. It was farting and bucking before I changed them. Cleaned everything up with Brake Clean and air blasts to remove all the PB down the hole (plugged the spark plug holes first). Replaced the rubber boots, applied nickle anti seize to the plug nose and torqued to 25 ft lbs. If anyone does it, you can feel if it breaks before it comes out. If it squeaks and comes out tight (30 ft lbs) all the way it is in good shape. If it turns 1 or 2 turns and then comes easy it broke. |
03-30-2015, 11:47 PM | #8 |
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Join Date: Aug 2012
Posts: 1,076
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Forgot to add I ran 2 tanks fulls of Seafoam before I did it. It probably helped. Runs like a Swiss watch now. Smooth.
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03-31-2015, 06:10 PM | #9 |
Senior Member
Outdoors RV Owners Club Join Date: Oct 2014
Posts: 3,539
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Running the Seafoam through helps a lot and even better if you suck it up through the brake booster vacuum line until it stops the motor. Then let it sit for 20 minutes or longer then run it until the smoke clears. No more carbon and no mosquitos for a couple blocks around you either, ha ha. Really smokes!
The impact driver really does help also. |
04-04-2015, 10:39 PM | #10 |
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Join Date: Dec 2013
Posts: 1,846
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Not all years of 5.4 engines are affected. I can't remember the years but it's the ones with the 2 piece plugs. Google it to find the years affected.
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04-04-2015, 11:52 PM | #11 |
Senior Member
Monaco Owners Club Workhorse Chassis Owner Join Date: Aug 2002
Location: Clovis, CA, USA
Posts: 13,138
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I had never heard of this...wow looks like a train wreck looking for a place to happen.
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04-05-2015, 05:01 AM | #12 |
Senior Member
Join Date: Jul 2012
Location: DeLand, Florida
Posts: 464
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The good news is that Ford changed the plug and head design starting with the 11/30/07 engine build date, correcting the issue. So basically, if you have a 2008 or newer engine, this should not be a problem.
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