Pearl02 said:I've never had a spark plug get seized up in a head before. I'm no Ford tech but I don't buy into any of that. I'm sure there are reasons for a plug to get stuck in a head. The problem with Ford modular motors seem to spark plugs staying in the heads. I wouldn't worry about that if i was you. Drive your car and enjoy it. With only 2700 miles I would be concerned with other problems(engine sludge,moisture in brake fluid,dry rot and cupping of tires to name a few). Pearl02.
I am a ford tech and I have never seen a plug on a modern ford aluminum head weld itself to the head. That might have been a issue back in the early days of aluminum heads, but engineers and metallurgists know how to keep the two metals from having a chemical reaction.. thats what used to cause those issues of corrosion and welding..
As far as I can tell Ford does not use anti-seize on the spark plugs on any engine they produce today, and they have never recommended us to use it.
The cause of most of the plugs getting launched out of the heads is a combination of
1. poor design of the head, not enough clamping force can be applied to the small number of threads in a soft metal like aluminum..
2. insufficient or excessive torquing of the plugs..
the combination of these two things is what causes this problem.