Ford Escape rough idling issue with broken spark plug and piston failure on Ford Escape

Some Ford Escape owners report experiencing rough idling issues, often attributed to misfiring, vacuum leaks, and problems with spark plugs. These issues can lead to poor acceleration, engine misfires, and decreased fuel economy, with the check engine light potentially illuminating as a warning. Additionally, some owners have noted that bad spark plugs can cause a shuddering feeling, particularly when climbing hills in high gear. In more severe cases, the top half of a spark plug may break off, leaving threads stuck in the engine. While piston failure is not explicitly mentioned, it can also contribute to rough idling and other engine problems. It is recommended that owners experiencing these symptoms seek a professional mechanic for inspection and diagnosis to ensure proper repair.