Spark plug ejected from cylinder head
ENGINE AND ENGINE COOLING
3 NHTSA complaints · 2006-05 → 2014-08
“MY 2002 LINCOLN NAVIGATOR EJECTED A SPARK PLUG CAUSING A SUBSTANTIAL REPAIR BILL”
“I HAD THE SPARK PLUG BLOW OUT OF THE HOLE CAUSED CAR TO RUN ON LESS COMPRESSION AND IT IS VERY COSTLY TO FIX”