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Car Shaking Problems
Spark Plugs and Wires
Honda Prelude SI

What is a fouled spark plug?


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Answered 2007-02-19 06:10:19

Fouling spark plugs can happen when the tip temperature is insufficient to burn off carbon, fuel, oil or other deposits and causes spark to leach to metal shell...no spark across plug gap will cause a misfire. Wet-fouled spark plugs must be changed as they won't fire. Dry-fouled spark plugs can sometimes be successfully cleaned by bringing the engine up to the operating temp.

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