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What Symptoms Indicate A Bad Spark Plug?

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CarBuzz
What Symptoms Indicate A Bad Spark Plug?

While we may use them every day and think nothing of it, our vehicles are advanced machines with lots of intricate parts working together to give us that seamless experience. However, high levels of complexity mean a higher possibility for malfunction. The engine, in particular, relies on a number of separate systems to function, and some of the smallest and often overlooked components, such as spark plugs, are vital. These electrical doodads are essential for your engine and car to start up and run, so if something goes wrong with them, trouble is sure to follow. Luckily, the symptoms of a bad spark plug aren't too hard to spot.

What Is a Spark Plug, And What Does It Do?

The spark plugs in a car engine are responsible for the spark that ignites the air and fuel mixture, which initiates the combustion process that creates power in the engine. They are located at the top of a cylinder head in the combustion chamber, and generally speaking, you will have a spark plug for each cylinder - so four plugs in a four-cylinder engine, six plugs in a V6 like a Dodge Charger. In some cases, though, you will find two spark plugs for every cylinder. In twin-spark or dual-ignition V8 engines like those on the Jeep Grand Cherokee, you'll find a total of 16 plugs.

Spark plug life spans vary depending on the brand and what materials they are made of. The interval for when you should change spark plugs will be indicated by the manufacturer of your vehicle, so be sure to check your owner's manual for how often to change these, and follow our basic maintenance schedule for a handy guide if you're unsure.

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Author: MORGAN CARTER

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