Rick's Free Auto Repair Advice

Posts Tagged: preignition


What is preignition? Preignition in an internal combustion engine is combustion that starts from a heat source other than the spark plug. Most preignition is caused by carbon buildup or a sharp edge inside the combustion chamber. As the engine heats up, the carbon or sharp edge gets so hot that it can start the combustion event at any time. In addition to carbon buildup, preignition can also occur if the wrong spark plug has been installed in the engine. Using the wrong octane fuel can also cause preignition. Every … Read More

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