What Causes Spark Plug Porcelain to Crack: Unveiling the Culprits
Spark plug porcelain can crack due to temperature changes, impact, or internal cracks. The ceramic portion of the plug is brittle and can break easily, leading to cracks in the porcelain. Cracked porcelain can cause misfires and may result in the spark jumping to a ground point instead of the electrode. If the porcelain breaks,…