Ford 5.4 3 valve spark plug change

[Coyoteslayer]

I'm a chevy guy by preference but when the lease was up on wife's truck in May and new Tahoes are 75k!!! Absolutely outrageous so I bought her a used Lincoln navigator 2007 with 150k miles but clean overall. It's been a solid vehicle so far but recently the check engine light came on. Ran the code and it's a misfire cylinder 4 (which is the hardest one to get to go figure). Now I've seen a friend of mine snap off the plug on these before so I was ready to go to war if need be. I attempted yesterday and the first one wasn't budging with a 2 foot breaker bar on my ratchet lol. Decided to think on it before I snapped it. My dad's friend said to run seafoam before u do it works every time. Lol he didn't specify which though so I put the gas treatment seafoam and direct spray in the intake seafoam. He wasn't lying!!! The engine light went off just from the treatment. Decided to do the plugs anyway. Why delay the inevitable. The same plug I had a 2 foot breaker on and couldn't budge came free with a little crank. So either I got on the Barry bonds workout program overnight or sea foam is the absolute real deal. The other 7 followed the same. New plugs and 2 new coils and took her for a test drive.....that thing is like a new truck!!  Last thing I need during trout season is to be stuck fixing her truck so this is a huge relief!!! I woke up ready to go to war with it and didn't have to. Now this fella earned himself a few casts carry on gentlemen.

[gnttn]

You’re doing it backwards. You gotta put them IN with a 2ft breaker bar 😂 

[DJ0808]

Sweet!!! Always nice when things go easy like that!!

 

[Coyoteslayer]

10 minutes ago, DJ0808 said:

Sweet!!! Always nice when things go easy like that!!

 

I will sea foam before every spark plug change on every vehicle I own from now on. Usually I'm ready for war and the job would bring 8 armies lol.

[Woodsman416]

I always heat the engine to operating temperature before removing the plugs on a Triton motor. That's the key. Not the seafoam.

[JD48]

Glad it worked out for you

[electric10162]

Your lucky. A few of my vans had 5.4s with aluminum heads. Always a bitch to get them out. 

[Coyoteslayer]

2 hours ago, Woodsman416 said:

I always heat the engine to operating temperature before removing the plugs on a Triton motor. That's the key. Not the seafoam.

Your logic is probably correct but I'm gonna ride with my misguided belief in the power of seafoam lol!!

[muzzy1]

do it hot

[megavites]

yes, do it hot and work them slow. Loose, 1/8, tight 1/8...then loose 1/4, tight 1/4 ...continue till extracted...no broken plugs

[Tarhunt]

23 hours ago, electric10162 said:

Your lucky. A few of my vans had 5.4s with aluminum heads. Always a bitch to get them out. 

Yep. We had to take the heads off to get them removed out of my dad's F150. Sucked. No more Fords.