When Should You Replace Your Spark Plugs?

Published on

December 28, 2023

old spark plugs being replaced with new spark plugs

A car's spark plugs may be relatively smaller components, but they play a massive role in the vehicle. Like other parts and systems, they require proper maintenance. That said, it is critical to know in advance when you should replace them to ensure that the engine's ignition is working smoothly. Without the spark plugs, the vehicle won't start. Therefore, you need to adhere to a strict routine maintenance schedule and replace the plugs at the right moment.

How Often Should I Replace the Spark Plugs?

The purpose of the spark plugs is simple: engine ignition. They create the spark that ignites the fuel and air mixture to initiate combustion in the engine cylinders. As a result, the engine starts when you turn the ignition key.

Like the water pump, the spark plugs have an extended lifespan, and you won't have to replace them for many years. Still, other issues in the car, such as inaccurate heat ranges and chemical contamination, can cause the plugs to wear, warranting the need for replacement.

Generally, you're required to replace the spark plugs every 30,000 to 90,000 miles. This interval varies from vehicle to vehicle. While spark-plug replacements are relatively straightforward procedures, it's critical to always refer to the manufacturer's manual to identify the proper plug location because automakers fit them at different locations.

Signs that Your Spark Plugs Need Replacing

Your car will start exhibiting unusual signs and symptoms that should signal the need to invest in new spark plugs. Have them replaced when:

  • The Engine Misfires
  • Reduced Fuel Economy
  • Difficulties Starting the Car
  • A Noisy Engine
  • The Vehicle Works Too Hard to Accelerate
  • The Check Engine Light Illuminates

Benefits of Replacing Failed Spark Plugs

Once you have new spark plugs mounted under the hood, you'll notice the striking difference in engine performance almost instantaneously. The vehicle acquires:

  • Consistent and Maximum Combustion
  • Improved Fuel Economy
  • Seamless, Dynamic Starts
  • Environmentally-Friendly Motor Function

Does your car exhibit the signs and symptoms of failing spark plugs? Bring your vehicle to our auto care and service center today! We'll replace them with quality plugs for durable services.