It’s no secret that cars have gotten more complex over the years. With computers being used to run everything from anti-lock brakes to cruise control, it can leave you feeling like you need an advanced degree just to open the hood. 

However, there are still some repairs that the car manufacturers haven’t taken away from the backyard mechanic. Changing your vehicle’s spark plugs in most cases is a straightforward job that you can tackle in your home garage on most applications. 

Before jumping into the job, you want to make sure you have the right spark plugs for your vehicle. From advanced iridium spark plugs to basic copper plus design spark plugs, Champion has you covered.

There’s a Champion spark plug for every application: 

Champion® Iridium spark plugs offer maximum service life of all plug type.  

Champion Double Platinum Power™ spark plugs feature platinum on both the center and ground electrodes. 

Champion Platinum Power™ spark plugs are an excellent choice as an upgrade for vehicles originally equipped with nickel/copper technology. 

Champion Copper Plus® spark plugs deliver dependable performance and durability. 

Once you have selected the right spark plugs, it’s time to get your hands dirty!

Step-by-Step Instructions

Removing the Old Spark Plugs

Step One

Locate the spark plug (some applications the spark plug might be hidden under the upper intake manifold, Ignition coil or ignition coil cover); locate the wire connected to the spark plug or ignition coil. Pull on the boot - the connector at the end of the wire or unplug wiring connector on the coil. Be sure not to pull on the wire itself, you risk damaging the wire or wiring connector. 

Step Two 

After the wire or coil is removed, use your socket wrench with the spark plug socket to remove the spark plug. Place the socket around the spark plug and turn the socket counterclockwise. The spark plug should unscrew easily.  If you are having problems removing a spark plug that is too tight, stop before you break it off.  You can put a bit of penetrating oil like WD-40 to help loosen it. 

Step Three

Take a look at the old plug; it should be a little dirty on the end. If it is oily or white, this could point to other issues that you need to investigate with the help of a professional mechanic. Set the old spark plug aside.  

Step Four

Examine the threads in the engine, if they are dirty; clean them with a thread cleaning tool. 

Installing the New Spark Plugs

Step One

If necessary, set the gap on the new spark plug before installing it. In the past, it was necessary to use a gapping tool to make sure the gap in the spark plugs was the correct size. Today, Champion spark plugs come pre gapped, eliminating the need for this step most times. You should double check that the gap is correctly set; check your owner’s manual to find the distance for the spark plug gap and use a gap gauge or feeler gauge to check the distance. 

Step Two

Seat the new spark plug by hand; turning it clockwise at least two full turns. Once you have the spark plug snug, use the socket wrench with extension and spark plug socket to tighten it turning the plug clockwise. The plug’s washer should be pressed against the mounting surface.  

Take care not to over tighten the plug; you can strip the thread on the head of the engine leading to costly repairs. You can also use a torque wrench to torque it to specification (OE service or repair manual). 

Step Three 

Replace the spark plug wire boot or ignition coil and wiring connector. A plastic boot should click into place while a rubber boot may require a coat of dielectric grease on the inside of the boot for easy removal next time. 

Step Four 

Repeat the removal and installation process for each spark plug. That’s all there is to it! You have breathed new life into your car with a set of new spark plugs. If at any point you run into issues or have a question, consult your mechanic. 

Learn more about quality spark plugs, find your car part, or find where to buy your auto part today.

The content contained in this article is for entertainment and informational purposes only and should not be used in lieu of seeking professional advice from a certified technician or mechanic. We encourage you to consult with a certified technician or mechanic if you have specific questions or concerns relating to any of the topics covered herein. Under no circumstances will we be liable for any loss or damage caused by your reliance on any content.