How To Diagnose And Replace Bad Ignition Coils 


Direct ignition coils are a common failure item in a vehicle's ignition system. But how do you truly know if your vehicle's misfire is due to ignition coils?

An engine misfire can be...so many things. Ignition, electrical, mechanical, the list goes on and on. 

In this video Gareth Foley, our BMW Catalog Manager, shows how to diagnose an engine misfire that's related to the ignition coils. 

The first way is via a scan tool, which is super helpful if you have one. But we realize a lot of people don't, and that's why we've added a second troubleshooting method—mechanical. 

By removing a coil and swapping it with another, you can troubleshoot the problem through process of elimination. More on that in the video. 

 

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Topics: BMW, Video

About the Author: Michael Roselli
Michael Roselli is FCP Euro's Content Director
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