When it comes to keeping your engine running smoothly, spark plugs are essential. So how exactly do spark plugs work, and when do you need to replace them? Learn everything you need to know about these small but mighty parts of your engine.
How Do Spark Plugs Work?
Spark plugs are aptly named, as their main job is to create a spark. When you start 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, creating the spark. This spark ignites the compressed fuel and air mixture in the engine’s combustion chamber, resulting in a small, controlled explosion that forces the pistons to move, creating the power that propels your car forward.
How Long Do Spark Plugs Last?
The lifespan of a spark plug can vary depending on the material, driving conditions, and the type of engine. Spark plugs made from traditional copper generally last around 20,000 to 30,000 miles. Platinum and iridium plugs, which are often used in newer vehicles, have a longer lifespan and usually last between 60,000 and 100,000 miles.
Signs You Need New Spark Plugs
Following your car manufacturer’s guidelines for replacing spark plugs should help you avoid many issues they may cause. However, if you notice any of the following signs it may be an indicator that you need to replace them sooner:
- Rough Idling or Misfiring: If the engine feels shaky or stalls unexpectedly, it could mean your spark plugs are worn out.
- Poor Fuel Efficiency: Worn spark plugs can cause your car to consume more fuel than usual.
- Difficulty Starting: If you’re struggling to start your vehicle, it could mean your spark plugs aren’t appropriately generating a spark.
- Lack of Acceleration: If your car feels sluggish or has a delayed response when you press the gas, worn spark plugs could be the cause.
Your car simply won’t run without healthy spark plugs. If you think it’s time for your spark plugs to be replaced, stop by Pearson Auto today. We’d be happy to help.