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Tag: engine misfire

What Happens to Your Engine When Spark Plugs Go Bad?
bad spark plugs engine misfire spark plug symptoms fuel economy ignition system

What Happens to Your Engine When Spark Plugs Go Bad?

Discover how bad spark plugs cause engine misfires, poor fuel economy, and potential catalytic converter damage. Learn symptoms, lifespan tips, and when to replace them.

June 20 2026