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View Full Version : anyone with a ford f150 04-08 era?


deereman
01-16-2010, 09:48 PM
just took it in and found out the plugs were stuck in the heads. it has about 65,000 miles, so if possible change em out and save yourselves some big bucks in the long run.

justinglow
01-16-2010, 11:39 PM
What happened? Did they break off when you tried to replace them?

Andyg
01-17-2010, 05:49 PM
It is a known problem on the 5.4L Triton engine. My buddy is a mechanic for Ford and he tells me that about 1 out 3 trucks that he has to pull the plugs on one of the plugs breaks in the head. Then he has to pull the head to get it out. Not a cheap repair. I would take to your local dealer and have them do it.

pup
01-17-2010, 06:29 PM
our 04 had 3 plugs break. they can be removed without pulling the heads. Lisle makes a tool to get the broken pieces out.

Mag_Red
01-17-2010, 06:48 PM
hmmmmmmmm Got 120,000 miles on the '05........... maybe time to change them

ski_king
01-17-2010, 10:22 PM
My 08 supposedly has the fix, so I was told........ they made a change half way thru the 2008 production year. If the coil boots are brown they have the fix, if black, be prepared to break some plugs off

I am not too concerned, I had the plugs on my 97 5.4 changed when a coil pack went bad at 135K, the plugs still looked good.

New style plug on top, old on bottom

deereman
01-17-2010, 11:56 PM
What happened? Did they break off when you tried to replace them?

ours has 65,000 and we were going to replace them to hopefully be ahead of the problem but they were stuck so we're just gonna wait until they start to go bad

deereman
01-17-2010, 11:57 PM
our 04 had 3 plugs break. they can be removed without pulling the heads. Lisle makes a tool to get the broken pieces out.

only bad thing with that is that all the carbon and crap that falls off the plug ends up in the cylinder

deereman
01-17-2010, 11:58 PM
hmmmmmmmm Got 120,000 miles on the '05........... maybe time to change them

glad to hear the plugs last that long. hopefully that will be the same for ours. it coast quite a few $$$ when you get into pulling the heads off.

prostar205
01-18-2010, 01:05 AM
I know the pre '03 5.4L engines are prone to spark plug blow out because there is not enough thread engagement on the spark plugs in the heads. My '99 Expedition has 75K miles on it and the head gaskets are leaking oil onto the exhaust manifolds making a nice smell in the cabin. This is another known issue with these engines.

BriEOD
01-18-2010, 10:00 AM
05 F150 and 04 Expedition. No issues with either.

Ski-me
01-18-2010, 10:55 AM
04' 8.1L GMC with 63k. No problem here :dance:

deereman
01-20-2010, 06:04 PM
05 F150 and 04 Expedition. No issues with either.

have you ever changed the plugs yet?

dummy
01-20-2010, 06:53 PM
I know the pre '03 5.4L engines are prone to spark plug blow out because there is not enough thread engagement on the spark plugs in the heads. My '99 Expedition has 75K miles on it and the head gaskets are leaking oil onto the exhaust manifolds making a nice smell in the cabin. This is another known issue with these engines.

Same goes for the plugs on the Ford V-10s of this era.

justinglow
01-20-2010, 07:14 PM
My 08 supposedly has the fix, so I was told........ they made a change half way thru the 2008 production year. If the coil boots are brown they have the fix, if black, be prepared to break some plugs off

I am not too concerned, I had the plugs on my 97 5.4 changed when a coil pack went bad at 135K, the plugs still looked good.

New style plug on top, old on bottom

So what is the problem? Is is the spark plug? Once you replace it you should be ok? I have an 07 with the 5.4. You have me curious.

deereman
01-20-2010, 09:51 PM
i thought it was the plugs but i could be wrong. anybody confirm that?

alletric
01-20-2010, 10:09 PM
04' 8.1L GMC with 63k. No problem here :dance:

Put 279,000 on a 1997 Z-71 1500 chevy with a 350. Changed the oil every 6,000 miles and never touched the plugs wires or ignition. Ran great the day I traded it. A good product makes up for the difference.

deereman
01-21-2010, 11:45 PM
my grandpa has a 99 silverado with a little over 150,000 on it and when he just changed the plugs, he said they still looked like brand new.