A significant portion of auto maintenance is understanding when to replace a component. Spark plugs are one such item. They're crucial to the combustion ignition process for the engine since it creates the spark that allows the engine to work. It should be replaced every 30,000 to 50,000 miles, but some spark plugs are designed to last longer. Either way, there are times when they'll need to be swapped out sooner than later.

When to Replace Your Spark Plugs

1. Starting Issues

Since it's used for igniting the engine, you'll feel it when you start your car. Starting issues can usually be tied to any corrosion on the spark plugs. Or, they could simply be worn down from overuse. Note, there's also a chance another auto maintenance issue could be to blame: the car battery. Have the battery tested by a professional or with the right equipment to rule it out. 

2. Rough Idle

When you're at a red light or parking your car, the engine should sound and feel smooth. If at any time it's louder than usual, outright noisy, or bumpy, something's wrong and spark plugs could be the issue. However, other auto maintenance concerns could lead to rough idling, such as problems with the carburetor, oxygen sensor, or various valves. 

3. Poor Acceleration

If you notice that your car doesn't accelerate as quickly as before or generally is not as responsive, the spark plugs may be worn out. Note that something like this will be most notable during your usual commute since you'll be most familiar with the general speeds and traffic. If you're traveling somewhere new, you might not be able to clock the differences.

When you notice these things, make an appointment with Roger's Automotive. Based in Lima, OH, they've provided reliable auto services for more than 25 years. Their team is highly trained and experienced. If you need any other types of auto maintenance beyond new spark plugs, they can help. They also offer diagnostic work and repairs. You can learn more about this online, but if you have questions, call (419) 222-8880.