How to Change your Spark Plugs on Your Car

by in Automotive
how to change your spark plugs

Changing your spark plugs is a simple and straightforward task that can be done by most car owners with basic mechanical skills. Spark plugs are a crucial component of the ignition system, and they play a vital role in ensuring that your car runs smoothly and efficiently. In this blog post, we will guide you through the process of changing your spark plugs, including the tools you will need, and the steps you should follow to ensure that the job is done correctly.

Why Change Your Spark Plugs?

Spark plugs are the components that ignite the air/fuel mixture in the combustion chamber of your engine. Over time, they can become worn or fouled, which can affect the performance of your car and reduce fuel efficiency. It is recommended that you change your spark plugs every 30,000 to 100,000 miles, depending on the type of vehicle you have and the type of driving you do. If you experience any of the following symptoms, it may be time to change your spark plugs:

  • Reduced fuel efficiency
  • Engine misfires
  • Engine roughness or stalling
  • Decreased power or acceleration
  • A check engine light appearing on the dashboard

Tools and Parts You Will Need

Before you begin, you will need to gather the tools and parts you will need to change your spark plugs. Here is a list of the items you will need:

  • Spark plug socket
  • Ratchet
  • Extension bar
  • Spark plugs
  • Spark plug gapper (if necessary)
  • Anti-seize lubricant (optional)
  • Gloves (optional)

Steps for Changing Your Spark Plugs

Step 1: Locate Your Spark Plugs

The first step in changing your spark plugs is to locate them. In most vehicles, the spark plugs are located in the cylinder head and can be accessed by removing the engine cover. Refer to your vehicle’s owner’s manual for the specific location of the spark plugs in your car.

Step 2: Remove the Spark Plug Wire or Coil Pack

Once you have located the spark plugs, you will need to remove the spark plug wire or coil pack that is connected to each spark plug. This will allow you to access the spark plugs and remove them. If your vehicle has a coil pack, you will need to remove it and then remove each spark plug individually. If your vehicle has spark plug wires, you will need to remove the wire from each spark plug by pulling it straight off.

Step 3: Remove the Spark Plug

Once the spark plug wire or coil pack is removed, you can access the spark plug. Using your spark plug socket and ratchet, loosen the spark plug by turning it counterclockwise. Once the spark plug is loosened, you can remove it from the cylinder head by pulling it straight out.

Step 4: Install the New Spark Plug

Once the old spark plug has been removed, you can install the new spark plug. Before installing the new spark plug, you may want to apply a small amount of anti-seize lubricant to the threads. This will help to prevent the spark plug from becoming seized in the cylinder head, and make it easier to remove the spark plug in the future.

Once the anti-seize lubricant has been applied, thread the new spark plug into the cylinder head by turning it clockwise. Make sure that the spark plug is tight, but be careful not to overtighten it.

Step 5: Reinstall the Spark Plug Wire or Coil Pack

Once the new spark plug has been installed, you can reinstall the spark plug wire or coil pack. If your vehicle has a coil pack, simply reinstall it on the cylinder head.

how to change your spark plugs