TECHLINE SUMMARY ARTICLE - IF YOU RUN ACROSS A SPARK PLUG THATÂ’S LOOSE OR HAS BLOWN OUT OF THE CYLINDER HEAD BEFORE REACHING THE FIRST SERVICE INTERVAL (GENERALLY AT 105K), CHANCES ARE IT WASNÂ’T TORQUED ENOUGH WHEN IT WAS INSTALLED AT THE FACTORY. THE CONSEQUENCES OF THIS CAN BE AS MINOR AS REINSTALLING THE SPARK PLUG TO COMPLETE CYLINDER HEAD REPLACEMENT DUE TO SPARK PLUG THREAD HOLE DAMAGE.