Spark Plugs 101 | Sherman, TX

A spark plug | Sherman Chevrolet in Sherman, Texas

While you might think spark plugs are old-fashioned technology, even modern vehicles come with these simple little parts. Spark plugs are responsible for starting your engine. Here is a brief overview of anything you may or may not have wanted to know about spark plugs. If you have questions or concerns about your spark plugs, give us a call at Sherman Chevrolet in Sherman, Texas.

How Do Spark Plugs Work?

In your car’s engine, it has cylinders. Many engines have four, six, or even eight cylinders. Each cylinder has one or two spark plugs. These spark plugs create a spark inside the cylinders. That spark ignites the gasoline-air mixture that makes the cylinders move to power your vehicle. If your spark plugs are failing, your car is not going to start.

Signs of Bad Spark Plugs

If your spark plugs are not working properly, your vehicle will experience engine problems. You may have trouble getting the engine to start, or you might get misfires when accelerating. You might also notice a drop in engine power or fuel efficiency. In fact, a misfiring engine may drop your fuel economy by as much as 30 percent, according to the National Institute for Automotive Service Excellence. Another sign of bad spark plugs is a rough idle — you may feel vibrations through the whole vehicle.

How Long Do Spark Plugs Last?

Spark plugs are designed to be incredibly resilient. They can withstand the blazing temperatures inside your car’s engine and can burn off any build-up that may occur. Typical modern spark plugs can last 100,000 miles or longer. However, if you have a performance car or a high-end luxury model, they may not last as long. Frequent heavy towing may also decrease the lifespan of your spark plugs.

Benefits of New Spark Plugs

A fresh set of spark plugs will give your engine optimal performance and efficiency. You will also enjoy smooth starts and accelerations.

For all your maintenance needs, contact Sherman Chevrolet in Sherman, Texas.

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