How to Replace Spark Plugs and Ignition Coils on Your 2016-2024 Mazda CX-9 | DIY Guide

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Learn how to replace the spark plugs and ignition coils on your 2016-2024 Mazda CX-9 with this comprehensive DIY guide. Follow our detailed instructions to ensure optimal engine performance and fuel efficiency. Symptoms of faulty spark plugs or ignition coils include engine misfires, rough idling, and decreased fuel economy. Save money and keep your Mazda CX-9 running smoothly by doing it yourself. Watch now for expert tips, necessary tools, and clear guidance to maintain your vehicle’s ignition system!

This video is based on 2021 Mazda CX-9 AWD with 2.5L 4 Cyl Turbo engine and automatic transmission. These instructions may apply to other model years as well.