How to Understand Spark Plugs | Types, Construction & Working Explained in Urdu | Car Doctor Pro In this video, we’ll explain how spark plugs work — from their basic construction to different types and their role in the ignition system of your car. You’ll learn how spark plugs create ignition, how to identify faulty plugs, and how to select the right type for your vehicle. 👉 This video covers: What is a spark plug and how it works Spark plug construction and internal parts Types of spark plugs