Some knowledgeable Ford technicians also suggest that frequently checking that the spark plug torque is set to factory specifications (which means using a torque wrench if doing this yourself ...

The most-reported problem is also with the 2003 Ford Expedition for 'spark plug blew out of head' - Car Complaints Over 100 owners have set out and complained of spark plugs blowing out of the ...

Ford’s performance-focused Special Vehicle ... A common issue with 10th-gen F-150s is the V-8’s tendency to eject spark plugs, and the Lightning is no exception. The 2003 and ’04 models ...