Learn how to read your engine’s health simply by checking the color of your spark plugs. In this video, I break down what each spark plug color means—healthy tan, oily black, sooty black, and especially white spark plugs, which often signal dangerous lean conditions. You’ll learn: How spark plug color reveals engine performance What white spark plugs really mean Common causes of lean spark plugs How to diagnose fuel, air, vacuum, and timing problems What you should check first before replacing p
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Learn how to read your engine’s health simply by checking the col…
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How to ‘Read’ Your Spark Plugs To Learn Your Engine’s Secrets
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The clear explanation of how to read spark plugs based on the conditions shown in your image. Spark plugs act like a window into the engine—showing how well it is burning fuel and if any problems exist. 🚗 How to Read Spark Plugs (Explained) 1. Normal Appearance: Light tan/gray insulator, clean electrode. Meaning: Proper air–fuel mixture, correct heat range, good engine condition. 2. Carbon Fouling Appearance: Dry, black, sooty carbon deposits. Causes: Rich air–fuel mixture Clogged air filter We
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