Demystifying the Check Engine Light Inspecting Spark Plug Health

Comments ; CHECK ENGINE LIGHT STILL ON & STILL MISFIRES AFTER CHANGING SPARK PLUGS ? THIS COULD BE WHY. Shaners Mechanic Life · 50K views ; EASY: ... Your spark plugs create a hot spark that ignites the air-and-fuel mixture in the cylinder, allowing your engine to start and run. Faulty spark plugs or spark ... Getting check engine light after replacing spark plug ... same thing happened to me. disconnect negative terminal on battery, go smoke a cigarette ... A faulty, old or dirty spark plug can cause the engine to misfire. If your check engine light is constantly flashing, please contact our team of automotive ... It sounds like oil that seeped from the cylinder head into the spark plug tube. A good initial fix (if it's not too bad) is to clean out the plug tube really ... The check engine light is usually related to engine misfires. Keep in mind that a check engine light could also be stimulated by other things, not just an old ... Brief explanation of causes and conditions of the Check Engine Light Illumination. If your spark plugs or spark plug wires are bad or former, you will experience poor performance and reduced power. In some extreme cases, your engine will have ... (1) Defective Spark Plugs or Wires. A malfunctioning spark plug or wire can cause your vehicle to misfire or run erratically, signaling the ... Place the old coil and plug on a metal engine part so that the outside of the sparkplug is touching grounded metal. Start the engine. It will ...