If you’ve ever needed to test a ignition coil on a car, you know it can be a bit of a hassle. In this tutorial, we will show you how to do it easily and without any special tools. Just like any other mechanical part on your car, an ignition coil needs to be tested from time to time in order to ensure proper function. By following our simple steps, you’ll be able to test your coil quickly and easily—no matter what car it is installed in.
What is a Ignition Coil?
A ignition coil is a component of an automotive engine that helps to start the engine by igniting the air/fuel mixture. When the ignition coil burns the fuel, it creates a spark that sets off the pistons in the engine. If there is an issue with your ignition coil, it can cause your car to not start or to produce weak or erratic sparks. In order to test your ignition coil, you will need to have access to a voltage tester and a spark plug connector. To connect the voltmeter to the spark plug, you will need to remove the cap and unscrew the tip of the plug. Once connected, set your multimeter to read volts and press down on the spark plug until you hear a sharp click. The reading on your voltmeter should be around 12 volts when testing your ignition coil. If there is an issue with your ignition coil, you may notice reduced battery voltage or no spark at all when testing it with a voltmeter.
How to Test A Ignition Coil On A Car
In order to test a ignition coil on a car, start by turning the key in the ignition and verifying that the car will start. Next, use an ohmmeter to measure the resistance between the battery terminal and each coil on the spark plug boot. If one of the coils has significantly higher resistance than the others, it may be time for replacement.
How to Fix A Ignition Coil On A Car
If you’re having trouble starting your car, there’s a good chance the ignition coil is the problem. This small electrical component can become fried over time, causing your car to refuse to start. Here’s how to test it and fix it if it’s broken.