When to Replace Spark Plugs

When to Replace Spark Plugs - Auto Repair

Spark plugs play an important role in your car’s engine because they make ignition possible. If there’s something wrong with your spark plugs, the fuel in the cylinders won’t ignite, and your vehicle won’t start. To work properly, spark plugs need to be checked periodically. You might have to clean or even replace them to get the best out of your vehicle.

When to Replace Spark Plugs

Here are the most common warning signs that tell you it’s time to have your spark plugs replaced.

1. Engine Sound

Every driver becomes familiar with the sound made by his or her car, after driving it for a while. If your engine starts producing a rough sound which makes the car vibrate or seem less agile than usual, you might need to have a look at the spark plugs. The sooner you do it, the better. By changing your spark plugs on time, you will avoid costly damages.

2. Car Won’t Start

When the car doesn’t start, it’s not necessarily because your battery is dead. It might be because of the spark plugs. If they don’t produce the ignition spark, you can’t get moving. Faulty spark plugs can also drain your battery, so there’s a double reason to solve the matter as quickly as possible by checking them both.

3. You Need to Fill the Tank More Often

Another sign that might warn you that your spark plugs are becoming a nuisance is fuel consumption. If your vehicle starts consuming more fuel even though you’re not driving longer distances than usual, the culprits may be the same spark plugs. This happens because combustion cannot be completed if the spark plugs don’t perform well.

4. Acceleration Is Slow

If you’re having trouble accelerating, and it feels like forever until your car gains speed, you may be in for a spark plug replacement. Usually, when you accelerate, your vehicle will respond instantly, but with lazy spark plugs, acceleration becomes difficult.

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