The Basics of Spark Plugs | Grand Prairie, TX

Spark Plug Pointers | Grand Prairie, TX

Many components bring your car’s engine to life. One of these vital parts is spark plugs. These small parts produce an electrical spark, “igniting” your car’s gas-powered engine to start. When your spark plugs are working as they should, your vehicle will drive well, protect your vehicle’s fuel economy, reduce pollutants in the air, and ensure smooth starts.

Signs Spark Plugs Are Failing

Before your spark plugs fail completely, they often show signs that they are weakening. You’ll notice that your vehicle’s performance is sluggish or irregular or your fuel economy is diminished, costing you money and time at the pump. Jerky starts or misfirings are loud signals your spark plugs need to be replaced. Other signs you may hear include rattling, knocking, or pinging. These noises are the result of the spark plugs misfiring.

Replacement Guidelines

Since spark plugs endure intense stress and pressure, they are built to last. Typically, they deliver approximately 30,000 miles of smooth engine starts and driving performance. However, since every vehicle is different, it is important to check your owner’s manual for replacement recommendations. Also, note that the type of spark plug you choose will impact its longevity, too. Be sure to heed your vehicle’s warnings that your spark plugs are failing and address the issue immediately.

Types of Spark Plugs

You can find spark plugs divided into three basic categories, based on material — copper, platinum, and iridium. Copper spark plugs are the least expensive option, but they also wear out the quickest. You’ll pay more for spark plugs made from platinum and iridium, but earn a longer lifespan. Before you choose, check your owner’s manual or ask the service technicians at Graff Chevrolet to find out what type is recommended for your car’s engine. Spark plugs designed for your engine will give you the best results.


If you are having trouble with your spark plugs and for all your vehicle maintenance needs, contact the service department at Graff Chevrolet in Grand Prairie, Texas.

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