I have read many posts on changing plugs but none specific to a 2009 F150 STX with a 4.6 L 2V and also read that in 2008 and newer Ford changed from the two piece to a different type of plug.Just trying to figure out what plug(part #) I have and how to change,I guess I got confussed by reading all the posts on 5.4 and 5.0 etc.Thanks in advance.

 

You shouldn't have a problem with plugs breaking or anything. Maybe get the engine warm a little before pulling them out. But from what I understand you shouldn't a problem with the plugs like us with the pre 2007-08 5.4L's. Might check out the 2009-Present forum for any common issues.