Known spark plug problem?
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Tuned
Joined: May 2010
Posts: 496
Likes: 130
From: Pleasanton, CA
Known spark plug problem?
Just bought a used 2004 F150 4.6L 130K-miles for my son about two weeks ago. He is renting a tralier to move home after college graduation last weekend. When he picked up the trailer the guy hooking everyting up mentioned that although the F150's are a great truck he mentioned some sort of "known" but not a recall in regards to either the spark plugs, coils or perhaps head gasket. My son is not real familiar with cars so his terminology sometimes is incorrect. I did some searching and only found that the plugs are tough to replace and apparently can break easy? There seems to be a lot more info on the 5.4 rather than the 4.6 I assume the 5.4 are more common? Is there any other issues to know?
Thank you,
Mike
Thank you,
Mike
Elder User
Joined: Apr 2010
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Yes very well known spark plug issue with 5.4 3V built 04-07. Spark plug is two piece plug that breaks off in the head. A search of the forum will give you all the info on it you need. It doesnt affect the 4.6 2V that was put in the F-150's although it did affect the 4.6 3V that they put in the explorers and mountaineers. There is a removal tool made by Lisle that you can get for around 60 bucks or so that will enable you to remove broken plugs. Also, the plugs take a 9-16 socket instead of 5-8.
Elder User
Joined: Apr 2010
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no problem. 2V is a 2 valve engine, 2 valves per cylinder head. The 3V is the 3 valve engine, which has 3 valves per cylinder head. 2004 was the first production year of the 5.4 3V. Previously it was a 2 valve. I don't know when they first made the 4.6L 3 valve. Like I said though, they didn't put the 4.6 3V in the f-150, only in Explorers and Mountaineers.
Hotshot
Joined: Sep 2010
Posts: 10,459
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From: RVA
no problem. 2V is a 2 valve engine, 2 valves per cylinder head. The 3V is the 3 valve engine, which has 3 valves per cylinder head. 2004 was the first production year of the 5.4 3V. Previously it was a 2 valve. I don't know when they first made the 4.6L 3 valve. Like I said though, they didn't put the 4.6 3V in the f-150, only in Explorers and Mountaineers.
The 4.6L 3v did make it to the F150 in 2009 as an option. You could actually get the 2v or the 3v depending on trim.
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Tuned
Joined: May 2010
Posts: 496
Likes: 130
From: Pleasanton, CA
As soon as I sent the message I had to hit myself in the head it dawned on me 2V/3V is valves per cylinder, doh!
Thanks guys for the additional info. I am not up on the newer stuff quite as much my 1995 truck is an F350 PSD 7.3DI dually.
I am sure I'll have more questions in the future on this F150.
Regards,
Mike
Thanks guys for the additional info. I am not up on the newer stuff quite as much my 1995 truck is an F350 PSD 7.3DI dually.
I am sure I'll have more questions in the future on this F150.
Regards,
Mike
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Elder User
Joined: Apr 2010
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That's interesting info McDavis. I wasn't aware the 4.6 3V was put in the F150. By 09 all the bugs woulda been worked out I'm sure.
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