Overland Park Auto Repair

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How Often Should You Change Your Spark Plugs?

A spark plug delivers an electric current to the combustion chamber, igniting the air-fuel mixture needed to start your engine. Without this, your vehicle won't start. Spark plugs last long and therefore do not require to be changed often.

It is recommended that they are changed after every 30,000 to 90,000 miles. However, different vehicles have different needs, and it is advisable to check your vehicle's user manual or consult a professional for recommendations on when to change your spark plugs.

Here are some indicators that suggest that you need a new spark plug:

Your car has problems starting

As previously stated, spark plugs provide the spark needed to ignite your engine. Worn out spark plugs will therefore not efficiently produce the spark needed.

Rough engine idle

A healthy engine should have a smooth idle resembling a purr. You might need new spark plugs if your engine is making rattling sounds or if it has a shaky, bouncy feeling.

Accelerating issues

As a driver, you are familiar with how your vehicle accelerates. If you notice that your vehicles' responsiveness has decreased, especially when you are accelerating, you should get your spark plug checked.

Sudden jerks during acceleration

Worn out spark plugs cause your vehicle to jerk or hesitate during acceleration. If this is followed by an odd smell, you need to get your plugs checked and maybe even replaced.

Your check engine light flashes

Modern cars will flash the check engine light when your spark plugs start to fail. The check engine light may be an indicator that significant misfires are occurring. Misfiring spark plugs exert stress on the catalytic converter, and this might end up costing you a lot in the long run. The check engine light, however, can result from several other factors. Always consult a professional before changing your spark plugs.

Increased fuel consumption

Damaged spark plugs are less effective at combusting the fuel that goes to the engine. As a result, your vehicle ends up consuming more fuel for the same mileage.

Spark plugs are a critical component of your vehicle. If you have experienced the above signs, then it's time to change your spark plugs. Visit our auto repair shop today and get your spark plugs replaced at an affordable cost.