Changing those 2.7 Ecoboost spark plugs

[Bird Dog Off Road]

Recently changed mine (long overdue) and figured I’d share for this not familiar with doing this or just wanted to see what it entails.
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[GreyZ]

How many miles did you have?

 

[Brian_B]

The old plug in those pics looks pretty low hours - barely any color to them at all and electrode still nice and white

 

[adamruiz2001]

Old plugs look pretty damn good, looks like they could have lasted a lot more miles easily.

 

[Fly by Nite]

How many miles did you have?

He said 65k miles in the video.

 

[Valhalla]

I'm hearing change at 80k.... Oh wait, I drive the P!$$ out of mine...44k

 

[Bird Dog Off Road]

How many miles did you have?

66k

 

[Bird Dog Off Road]

Old plugs look pretty damn good, looks like they could have lasted a lot more miles easily.

Yeah, its hard to know until you get them out, they had about 65-66k miles on them

 

[MayhemMike]

100K before you even think about taking a look at a plug.

 

[Valhalla]

100K before you even think about taking a look at a plug.

I still have problems with this thought process. To many nightmarish 90s plugs when they moved from 40k~50k mile service. I say pull and clean at 40k.

 

[Bird Dog Off Road]

100K before you even think about taking a look at a plug.

interesting, I saw many people post about theirs having misfires and such because they waited too late.

 

[Mortde [SCAMMER]]

Changed mine at 70k

 

[AtomicKoalaJelly]

100K before you even think about taking a look at a plug.

60k isnt really a bad mark to change them. Its more preventive maintenance at that point. Figure this, if you dont do alot of miles yearly it could be upwards 10 years before you, or most for that matter, would be changing them. At that point your looking at boots oxidized to the plugs, dry rotted boots breaking on removal, and rust on the plugs which can lead to issues.

What I've seen recommending plugs at 60k or 5 years is the beginning of those issues but also catching carbon tracking before it becomes an issue. Just because something isn't bad doesn't make it good. Just my 2 cents working as a tech.

 

[Brian_B]

100K before you even think about taking a look at a plug.

I dunno, I did mine at 50 - the plugs didn't look bad, but definitely noticed a difference in idle smoothness and got a small MPG bump from it.

So.. I didn't ~need~ it, no misfires or anything, but it certainly didn't hurt anything. My plugs looked a bit worse than the OPs, but not awful or abnormal.

 

[SpringTXOR]

It's like a filter you can change it weekly if you want, and it will not hurt anything. You must remember though that you are throwing money at replacing something that is perfectly good with plenty of life left in it.

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