Does the 2014 Expedition with the 5.4 3 valve engine have the 2 piece plugs that snap off when replacing.
Appears Ford changed the head design on 2008 and newer versions of the 5.4.
RepairPal.com explains that since the threads on the cylinder head are too short and soft, pressure in the engine is able to push the spark plugs out of place. If any spark plugs are ejected, the spark plug port threads may need to be fixed or the cylinder head and cylinder head gasket might need to be replaced. This affects the V8 engine, and Ford did issue a technical service bulletin. The issue appears on model years 1997 through 2007. It costs $390 to $467 for spark plug replacement.[quote=“JoeShmoe1, post:1, topic:169704, full:true”]
Does the 2014 Expedition with the 5.4 3 valve engine have the 2 piece plugs that snap off when replacing.
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