Replacing Spark Plugs & Ignition Coils Is Easier Than You Think

The Basics Of Spark Plug Replacement & Ignition Coil Replacement On Any Car

You don't need to be an expert to start working on your own car.

Replacing spark plugs and ignition coils are two relatively approachable DIY jobs, and learning how to tackle them yourself can save you both time and money.

What Do Spark Plugs & Ignition Coils Do?
Your ignition coils generate the high voltage needed for your spark plugs to ignite the air-fuel mixture inside each cylinder.

Over time, spark plugs wear and ignition coils can fail, potentially leading to misfires, rough running, reduced performance, and a check engine light.

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A Great Place to Start With DIY
While the exact process varies from car to car, the fundamentals of replacing spark plugs and ignition coils are similar across many vehicles.

You'll need to access and disconnect the ignition coils, remove the old plugs, inspect the area for debris, and properly install the new components.

Save the Trip to the Shop
These are jobs that can cost hundreds of dollars in labor at a shop or dealer, but they're also services many owners can tackle at home with some basic tools and guidance.

Watch this week's Tech Tip as Gareth walks through the basics of replacing spark plugs and ignition coils and shows you how the process applies to many of the cars on the road today. Watch now.

Explore more Tech Tips, DIY Videos, and Expert Guides on the FCP Euro YouTube channel.

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