Spark Plug Replacement

Revive your engine’s power! Book your spark plug replacement today!

At Stephenson Tire and Auto in North Alabama, our auto repair service is tailored for drivers across North Alabama and the Shoals region. That means a service experience focused on dependable vehicle performance and better long-term reliability. This location emphasizes honest communication, careful inspections, and repairs that match how people actually drive locally. Located in North Alabama, Stephenson Tire and Auto serves drivers from Florence, Muscle Shoals, Killen, and surrounding communities with trusted tire service, vehicle inspections, and professional auto repair backed by experienced technicians.

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Third service offering

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Spark Plug Replacement FAQ

  • How do I know when my spark plugs need replacing?

    Symptoms include rough idling, misfires, hard starts, or decreased fuel efficiency.

  • How often should spark plugs be replaced?

    Typically every 30,000–100,000 miles, depending on the plug type (copper, platinum, or iridium).

  • What happens if I don’t replace bad spark plugs?

    Worn plugs can lead to engine misfires, poor acceleration, and higher fuel consumption.

  • Do spark plugs affect fuel economy?

    Yes. Fresh plugs help ensure efficient combustion, improving fuel efficiency and engine performance.

  • How long does a spark plug replacement take?

    Most replacements take about 30 minutes to an hour, depending on the engine configuration.

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