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How To Change Your Spark Plugs

Have you been noticing some issues with your vehicle lately? It could be your spark plugs. Changing your spark plugs is a relatively simple task that anyone can do with a basic understanding of car mechanics. This article will walk you through the steps necessary to change your spark plugs safely and efficiently. It will also provide tips on choosing the correct spark plugs for your vehicle. So read on to learn everything you need to know about changing your spark plugs!

What Are Spark Plugs?

Spark plugs are an essential component of any gasoline-powered engine. These small plugs create a spark that ignites the fuel in the engine cylinders, allowing the engine to run. Spark plugs typically need to be replaced every few years, and they can become fouled or damaged over time.

Spark plugs are relatively inexpensive, so keeping them in good working order is essential. You need to clean or replace them to keep the engine running correctly when this happens. Regular maintenance will help extend the life of your spark plugs and keep your engine running smoothly.

Finding The Right Spark Plugs For Your Vehicle

How do you know which ones are right for your vehicle with all the different types and brands of spark plugs on the market? One of the first things to consider is the type of engine in your car. There are three main spark plugs: platinum, iridium, and copper. Platinum and iridium plugs are more expensive, but they last longer and provide better performance.

Copper plugs are the most affordable option, but they often need replacing. Another thing to keep in mind is the size of the spark plug gap. Plug gap refers to the distance between the electrode and the plug’s tip; it needs to be right for the engine to run correctly.

Finally, you’ll also want to pay attention to the thread size and pitch, which refers to the size and spacing of the threads that screw into the engine. Different vehicles require different sizes, so it’s essential to check your owner’s manual before purchasing.

Checking Your Spark Plugs

As mentioned before, spark plugs can become fouled with oil, carbon deposits, or other debris over time can cause the engine to misfire or run less efficiently. It’s essential to check your spark plugs and replace them as needed regularly to keep your engine running smoothly. The best time to check your spark plugs is when you’re doing routine maintenance on your vehicle, such as an oil change.

To check the condition of your spark plugs, remove them from the engine and inspect them. If they’re in deposits or if the electrode is worn, it’s time to replace them. Replacing spark plugs is a simple process done at home with just a few tools.

Step 1: Getting Your Vehicle Ready


The first step to changing your spark plugs is getting your vehicle ready. You will want to park your car on a level surface, turn off the engine, and wait for it to cool down. Cooling down your vehicle typically takes around 20-30 minutes. Next, you’ll need to remove the negative battery cable to prevent accidentally shocking yourself while working on the engine.

If your vehicle has an air filter, you may also want to remove it to have better access to the spark plugs. Once everything is disconnected, open up the hood of your car and locate the spark plugs.

Step 2: Removing The Spark Plug Wire

Once you have located the spark plug, you need to change it; the next step is removing the spark plug wire. You can gently pull on the wire until it pops off the spark plug. If the wire is stuck, you can try twisting it back and forth before pulling. Be careful not to damage the wire or pull too hard, as this could cause the wire to break. Once you remove the wire, you should see the end of the spark plug.

Step 3: Remove The Coil On Plug

The next thing you need to do is remove the coil on the plug. Removing the coil is vital, as the coil-on-plug helps deliver voltage to the spark plugs. Without it, the spark plugs will not be able to function correctly. First, locate the coil pack to remove the coil on the plug. It will be located near the engine and have a cluster of wires attached to it.

Now, use a wrench or socket to loosen the bolts that hold the coil pack. Once the bolts are loose, carefully pull the coil pack away from the engine. Be sure to disconnect any wiring attached to the coil pack before removing it completely. With the coil pack removed, you will be able to access the spark plugs and change them as needed.

Step 4: Remove The Old Spark Plug

The fourth step in changing your spark plugs is removing the old spark plugs. You will need a socket wrench and a spark plug socket to do this. To start:

  1. Use the socket wrench to loosen the retaining nut. Once the retaining nut is loose, you can remove the spark plug socket and pull out the old spark plug.
  2. Be careful not to drop the old spark plug, as it may be damaged and not work correctly.
  3. Repeat this process for each of the spark plugs.

Step 5: Install The New Spark Plugs

The fifth and final step in changing your spark plugs is installing the new ones. To do this:

  1. Take the new spark plug and insert it into the spark plug socket.
  2. Use the socket wrench to tighten the retaining nut.
  3. Be sure not to overtighten the nut, as this could damage the threads on the spark plug. Once the retaining nut is tight, you can reattach the coil on the plug and reconnect any disconnected wiring.

Finally, replace the air filter (if applicable) and close the hood of your car. Once everything is back in place, you can start your car and see how it runs. Your car should run smoother with new spark plugs and have better fuel economy.

Your Spark Plugs Are Good As New!

If you’re experiencing problems with your car, such as poor fuel economy or misfiring, changing your spark plugs may help solve the issue. Spark plugs are a vital part of the engine and need to be changed every few years. You can change your spark plugs and save money on expensive repairs with just a few tools and time. Be sure to consult your owner’s manual for specific instructions on changing spark plugs in your car. You can keep your vehicle running smoothly for years with a bit of effort!