The Ins-and-Outs of Spark Plugs: What They Do and When to Replace Them
Spark plugs are essential to keeping your engine running smoothly. So what exactly do they do, and how long do they typically last? We’re sharing all the need-to-know info in this brief guide to spark plugs.
What Do Spark Plugs Do?
Spark plugs are true to their namesake — they create a spark! When you turn on your vehicle, an electrical current travels to each spark plug and jumps across the gap between two electrodes at the tip of the spark plug. This creates a spark that ignites the compressed fuel and air mixture in your engine’s combustion chamber. What results is a small, controlled explosion that forces the pistons to move and create the power that propels your car forward.
What is the Lifespan of Spark Plugs?
The material spark plugs are made from, your driving conditions, and the type of engine can affect how long spark plugs last. In general, traditional copper spark plugs usually have a lifespan of 20,000 to 30,000 miles, while platinum and iridium plugs — what’s used in newer vehicles — last between 60,000 and 100,000 miles.
Signs You Need to Replace Your Spark Plugs
To avoid problems caused by worn spark plugs, follow your car manufacturer’s guidelines for when to replace them. However, if any of the following signs pop up in the meantime, you may need to replace them sooner:
Misfiring or Rough Idling: Your spark plugs may be worn out if the engine feels shaky or stalls unexpectedly.
Poor Fuel Efficiency: You may notice your car consumes more fuel than usual when your spark plugs are worn.
Difficulty Starting: Struggling to start your vehicle? This could be a sign that your spark plugs aren’t generating a proper spark.
Lack of Acceleration: Worn spark plugs may be the cause of a sluggish drive or a delayed response when you press the gas.
If your spark plugs aren’t working, your vehicle simply won’t run! If you’re noticing issues and think spark plugs may be the cause, bring your car to Auto Correct for assistance today.
