Been reading that it's almost impossible removing the original spark plugs without breaking them into engine head. I've read to turn 1/4-1/8 turn and spray carberutor tune-up cleaner down in the spark plug area and let it soak for 15 min. and to remove them when the engine is warm. In the comment section, they said at least half the spark plugs were broke off and one guy took it to a mechanic with the same results.

 

Well, when I had an F150 with the Triton 5.4, I was terrified of having one blow out with the eight plugs and never changed them with over 100K. I don't know what to think about a 6.2 with 2 plugs per cylinder. With 43K I might do them now and get it over with. Then again, maybe not....

 

So what year truck we talking about here?
my brother has a 2001 f150 with 5.4 he bought used with 120k, that weekend I sprayed some PB blaster down each spark plug hole and Saturday morning I removed all 8 with ZERO issues. Used compressed air to clean bore hole then brake cleaner followed by compressed air. Installed new ford plugs with silver high temp antiseize torqued to 14ftlbs. On my 2004 f350 with 5.4 I've changed plugs ever 30k since buying it brand new, only exception I dont use PB Blaster becase I've always have antiseize on the ford plugs so they come right out

 

Mine was a 2000 F150 Lariat. I had another one that got wrecked. Did all 8 in it without a hitch using the same method you did.

 

Hello, I have a 2007 Lincoln Mark LT 5.4 engine basically a Ford engine. I blew out the spark plug holes with compressed air and they looked shiny. I've never seen such tight spark plugs before. They were so tight I had to use a cheater bar to get them loose but they felt like they were going to break so I stopped.

 

From the factory ford installs the plug "nude" no antiseize or anything. Over time with all the heat cycles the steel plug corrodes to the aluminum head threads, most people leave them in WAY too long and you either strip threads or break plugs. At this point spray PB blaster down the holes and let it soak overnight, then spray them again and try tightening then loosening the plug and it should come right out

 

You should read the how to or the TSB, you want to use a impact wrench to remove them. It drastically lowers breakage but make sure you still have the lisle tool handy for the inevitable. This applies to the 3v engine only the older 2v engines just blew plugs out by themselves.

 

Not after 2002, ford fixed that problem on the 2valave motors

 

Thanks super duty scaler . Imagine that.

 

I just changed all 16 plugs top and bottom on my 2011 F250 with 6.2L flex fuel. It had 110,000 miles on the engine. I used a socked wrench and extensions. What a job. got all of the plugs out without breaking any. I used anti seize compound on the new plugs before installing them. Tool me over 5 hours to do the job, but I got it done,
Mel

 

Seems like there are 2 issues being discussed here.
The 2v version of the 5.4L had standard old school style spark plugs and I don't think think those have any issues with breaking when removing them.
Ford installed them with around 17 ft-lbs of torque and most people these days use 20-25 ft-lbs.
With such a low OEM torque the plugs are more likely to work loose after many miles and blow out stripping the threads.
This seems to happen around 100-120k, some never have an issue with 200k, I read a report from one guy with an OEM blown plug at 68k.
I change plugs/boots at 50k, torque to 25 ft-lbs, use anti-seize and have not had any problems.
The 2v heads were updated to 8 threads vs 4 threads in late 2002, but I have seen reports of blown plugs in those, too.
Having 8 thread spark plug holes just means it would take longer to loosen and blow out.
Just don't leave the plugs in for lots of miles or at least torque them regularly.
Motorcycles and VWs have dealt with steel spark plugs in aluminum heads for many years.
These issues are not new, just more prevalent since Ford started making so many engines with aluminum heads.
The plugs that have reports of breaking are the 2 piece plugs used in the 3v engines.
Their problem is getting combustion byproduct buildup around the cylinder end, sticking and breaking off when the top end is turned.
There is a 1 piece plug available that should eliminate the breaking issues.
These problems are really minor compared to a newer Ford engine design where the water pump is inside the engine.