How To Test Your Fuel Injectors In Just 30 Minutes

The function of your diesel fuel injection system relies on careful maintenance. Fortunately, much of this maintenance you can do at home. By testing your fuel injectors at home, you can determine when you need to replace them. Then, if you know how to change injectors, you can install these replacements at home as well. Follow these steps to test your injectors for function and condition.

Step 1: Gather your tools.

To test your injectors, you will need only a few tools that you likely already have in your home. First, you will need to find proper safety gear, including gloves and eye protection. For your actual mechanical tools, you will need a foot-long metal rod or a screwdriver. You will also need an automotive test light.

Step 2: Use your senses.

Start your car’s engine. Take your metal rod or screwdriver and place it on a fuel injector. Carefully lean your head close enough to the rod so that you can hear its vibrations, but not so close that you are near the engine. If the injectors are activating, you should be able to hear a cliché function of your diesel fuel injection system relies on careful maintenance. Fortunately, much of this maintenance you can do at home. By testing your fuel injectors at home, you can determine when you need to replace them. Then, if you know how to change injectors, you can install these replacements at home as well. Follow these steps to test your injectors for function and condition.