TechGuys: How to change and inspect spark plugs

TechGuys: How to change and inspect spark plugs

In this how-to article, we will cover the removal, inspection and installation of spark plugs. Spark plugs are covered in most manufacturer maintenance programs and are generally supposed to be changed every 2 years. Having fresh, properly installed spark plugs will help increase mileage, power output, and reliability of your vehicle.

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Before you start this procedure, ensure you have all of the tools and consumables listed above at your disposal. Be sure you purchase the proper spark plugs as indicated in your owner’s manual. If you don’t already have anti-seize compound, be sure you purchase the high temperature variety (copper). Similarly, a tube of dielectric (tune up) grease is an excellent investment at the same time.

Good, clear instructions explaining all the minor steps involved in replacing spark plugs. It’s probably doable with a basic wrench and knowledge of how to find them, but this avoids a lot of simple mistakes.