[Labrat]

I have a question regarding sparkplugs in the 2.0L Duratec petrol engine.
I had two of the four start to break up. Both had the centre electrode disconnect from the top. When the plug leads were removed, the centre pin could be pulled out of the plug. One also had the earth electrode at the bottom break away destroying the engine. What could possibly cause this?
Lots of newer plugs look to have plugs that appear fragile.

I would like to know the reason. I have been told that if the car overheats that this will happen, but that doesn't sound right to me.

My first Focus was written off when someone ran into the back of it, now this.
Must I really have to buy a TOYOTA?

Wayne.