I'm well aware this subject has been covered all over various websites, but I'm asking it again. Are the spark plugs in my 2007 F-150 with the 4.6L engine the 2-piece design that are prone to breakage when removed? The problem is, I've read so much conflicting information my brain is hurting. Some say no, it's only an issue in the 5.4L engine. Some say yes, but only in the 4.6L with the 3-valve arrangement and not a problem with the 2-valve. Some say all the '07 4.6L are 3-valve. Jeez, does anyone have a clear and correct answer? My '07 has been an outstanding truck in every way, almost zero problems and currently around 144,000 miles. Looking at having the plugs replaced, and yes I know that's a long time to run a set, but it's still almost as smooth as it was when new.

So the specifc questions are:
1) Are there both 2-valve and 3-valve versions of the '07 F-150 4.6L? If so, how do I tell which one I have?
2) If the above is true, was the 2-piece spark plug that is prone to breakage when removed used only on the 3-valve version and not the 2-valve?
3) Was the breakage-prone plug design used on ALL the '07 4.6L engines?

If it helps, as far as I know I have a Windsor-made engine, the fittings on it are metric. Windshield decal that came on it lists the Dearborn assembly plant. I can send the VIN if you need it and e-mail me.

Thanks for your time and putting up with reading another spark plug post.

 

Answered in your other thread. One thread per question please. Get a moderator to remove this one for you.

 

Look up your vin or just look it up on fords website.

The 2v was used until 08

Then it is a 2v or 3v in 09 and newer models.