What Damages Spark Plugs? Causes and Prevention Explained

Learn about the common causes of spark plug damage and how to prevent them for optimal engine performance.

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Spark plugs can be damaged by carbon buildup, overheating, and incorrect gapping. Carbon buildup results from a rich fuel mixture, causing deposits. Overheating can occur if the engine runs too hot, leading to a melted or cracked spark plug. Incorrect gapping hinders proper combustion. Regular maintenance and using the right spark plug for your engine can help prevent these issues.

FAQs & Answers

  1. How often should spark plugs be checked? It is recommended to check spark plugs approximately every 30,000 miles, or as advised in your vehicle's maintenance manual.
  2. What are the signs of a failing spark plug? Signs include poor fuel efficiency, engine misfires, rough idling, and difficulty starting the engine.
  3. Can I replace spark plugs myself? Yes, if you're comfortable with basic car maintenance, replacing spark plugs can be a straightforward DIY task with the right tools.

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