Can a Spark Plug with Cracked Ceramic Still Be Used?

1 Answers
StKhloe
07/30/25 3:39am
Spark plugs with cracked ceramic cannot be used and should be replaced immediately. The spark plug is a crucial component of the gasoline engine's ignition system, introducing high-voltage electricity into the combustion chamber to create a spark across the electrode gap, igniting the combustible mixture in the cylinder. Common spark plug faults include: 1. Spark plug leakage; 2. Black deposits on the electrode; 3. Fractured insulator tip; 4. Oil fouling on the spark plug; 5. Spark plug erosion; 6. Excessive spark plug gap. The steps for replacing a spark plug are: 1. Remove the spark plug cap when the engine is cold; 2. Unscrew the old spark plug counterclockwise; 3. Screw in the new spark plug clockwise; 4. Reattach the spark plug cap; 5. After replacement, verify everything is correct and test the ignition.
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