When to Replace Your Car’s Spark Plugs—And Why It Matters

Your car’s spark plugs may be tiny, but they play a huge role in how your engine runs. They create the spark that ignites fuel and air in the engine, making combustion—and movement—possible. Without properly working spark plugs, your car won’t perform efficiently, and over time, you might start noticing issues that could lead to bigger (and more expensive) problems.

Signs It’s Time to Replace Your Spark Plugs

So how do you know your spark plugs are past their prime? Some of the most common signs include:

· Trouble starting your car

· Decreased fuel economy

· Engine misfires or rough idling

· Slow acceleration

· A check engine light that won’t go away

If your car is experiencing any of these symptoms, it might be time for a spark plug inspection. At our auto repair shop in Pinellas Park, we see a lot of drivers who come in for other issues—only to find worn spark plugs at the root of the problem.

When Should Spark Plugs Be Replaced?

Most manufacturers recommend replacing spark plugs every 30,000 to 100,000 miles, depending on the type. Copper plugs don’t last as long as platinum or iridium ones, so it’s best to check your owner’s manual or talk to a car mechanic for exact timing.

Regular maintenance—like an oil change service—is a good opportunity to get your spark plugs checked out. It's quick, affordable, and can save you from major engine repairs later on.

The Long-Term Benefits of Timely Replacement

Replacing spark plugs when they’re due ensures:

· Smoother engine starts

· Better fuel efficiency

· More engine power

· Reduced harmful emissions

· Longer engine lifespan

This small fix is one of the best ways to keep your car running efficiently, especially when combined with routine services like brake pad replacement or even A/C repairs for cars to stay cool during Florida summers.

Why It Pays to Stay Proactive

Spark plugs are one of those things you don’t think about—until your car starts acting up. But by catching the signs early and trusting reliable car repair shops, you’ll avoid costly repairs and keep your vehicle performing at its best.

Let Platinum Wrench Auto Repair Handle Your Spark Plugs

At Platinum Wrench Auto Repair, we make spark plug replacements quick, precise, and affordable. We don’t just swap parts—we diagnose and maintain your whole engine system.

We’re proud to be the go-to auto repair shop in Pinellas Park, helping drivers with everything from spark plugs to car battery replacement, A/C repairs, and wheel alignment services.

Our team of experienced car mechanics in Pinellas Park is here to help you drive with confidence—no matter the mileage. If your car’s been running rough or it’s simply time for a tune-up, contact us today and we’ll make sure every spark counts.