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How Long Does an Ignition Coil Last?

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If you’re the owner of a vehicle, chances are good that at some point you’ll find yourself wondering how long your ignition coil can last. Many motorists have heard that this component affects both performance and fuel economy, but don’t know exactly what symptoms to look out for when it comes time to replace it. Fortunately, we’ve got all the information you need right here!

In this blog post, we’ll explore how long does an ignition coil last, warning signs of failure and strategies to extend its life expectancy. Ready? Let’s begin!

How does the Ignition Coil work?

The ignition coil is an indispensable component of the combustion process that happens when starting a car. It helps create a spark, initiating the reaction between fuel and air which helps move the car. Without it, cranking your engine would be almost impossible. That is why it’s essential to keep it in a fault-free condition or else you may find yourself stranded at a desolate spot unable to start your vehicle.

How Long Does an Ignition Coil Last?

How Long Does an Ignition Coil Last (2)
How Long Does an Ignition Coil Last (2)

It’s important to remember that protecting your car’s ignition coil is essential for a smooth and effective drive. Even though the average life expectancy of an ignition coil is around 100,000+ miles, there are numerous factors which can cause it to fail earlier. This could include heat and moisture buildup within the hard plastic covered coils found in many newer cars on the market, or sometimes they might even become damaged due to overwhelming vibrations in the engine over time.

An issue with your car’s coil can really affect engine performance, so it pays to ensure that you maintain them properly and replace them sooner rather than later if you feel like something isn’t quite functioning as it should.

What will happen if a damaged Ignition Coil is not replaced promptly?

If you ignore the signs of a faulty ignition coil, the issue won’t just disappear. Over time, the damage will get worse and can eventually lead to complete engine failure. Delaying replacing a bad ignition coil causes stress on your engine as it has to compensate for the lack of power from malfunctioning cylinders. The bottom line is – don’t delay getting an ignition coil checked out if you suspect there’s something wrong – it’s crucial that you maintain your vehicle and replace any worn parts promptly before they become more serious issues in the future.

Symptoms of a Bad Ignition Coil

The symptoms of a bad ignition coil can vary depending on the type of engine, but some common signs to look out for include:

– Decreased fuel efficiency and performance

– Misfiring engine

– Rough idling or stalling when the vehicle is stopped

– An illuminated Check Engine light.

– Difficulty starting the vehicle or an inability to start the vehicle at all.

– Excessively high emissions coming from the exhaust pipe.

– Backfiring in your engine caused by unburnt fuel entering the exhaust system.

– A noticeable gas smell coming from your car’s exhaust pipe.

How to Extend the Lifespan of an Ignition Coil

How Long Does an Ignition Coil Last (3)
How Long Does an Ignition Coil Last (3)

Related: How to Clean Ignition Coil?

Extending the life of an ignition coil requires regular maintenance and careful use. Proper maintenance can reduce wear on the component, as well as helping to prolong its lifespan.

1. Keep your coils clean – Regularly clean the outside of your coil with a damp cloth to remove any dirt or debris that could cause it to malfunction.

2. Check for loose wiring – Make sure all wiring is tight and secure at all times, as loose connections can cause arcing and damage the coil over time.

3. Don’t overheat – Avoid running the engine at high RPMs for prolonged periods, as this can lead to overheating of the coils and eventual failure due to stress from vibration.

4. Keep it lubricated – Use a light machine oil to lubricate the coil’s moving parts periodically. This will help reduce friction between them and extend its lifespan.

5. Replace regularly – Even with proper maintenance, ignition coils do wear out over time. Check your owner’s manual for the recommended interval for replacement and be sure to follow it for the best performance from your vehicle.

By following these simple steps, you can ensure that your ignition coil is running in top condition and will last you for years to come. Regular maintenance and careful use are key to extending its life as long as possible.

FAQs about How Long Does an Ignition Coil Last?

How often should I check and replace my ignition coil?

You should check your ignition coil every 15,000 to 30,000 miles or once a year. If you notice any signs of wear or deterioration then it’s best to replace the coil as soon as possible.

What factors affect the lifespan of my ignition coil?

The lifespan of your ignition coil is affected by a variety of factors such as the type and quality of the coil, driving conditions, engine temperature, and more. To ensure maximum performance, it’s important to use high-quality components and have regular maintenance checks performed on your vehicle.

Is there any way to tell if my ignition coil is failing without any warning signs?

Unfortunately, it can be difficult to tell when an ignition coil is starting to fail without any visible signs. To help detect a potential problem early on, you can have your mechanic run diagnostics or perform a visual inspection of the coil. This will allow them to identify any issues and make sure that your vehicle’s performance isn’t affected.

What should I do if my ignition coil fails?

If your ignition coil has failed, then it’s best to have it replaced as soon as possible. It’s also important to make sure that any other parts that may be affected are checked and/or replaced. A qualified mechanic will be able to diagnose the problem and provide you with a repair plan for getting your vehicle back on the road.

Additionally, you can use high-quality replacement parts to ensure that your car is running properly and efficiently. Having regular maintenance checks performed can also help prevent further issues in the future. Taking these steps now can save you from costly repairs down the line.


We hope this article has given you a better understanding of how long does an ignition coil last and answered any questions that you have had.

When it comes to the lifespan of an ignition coil, ultimately its longevity will depend on how well you maintain your vehicle. Regular maintenance of your car’s ignition system can help extend the life of the coil, as well as any accompanying parts and components. Always refer to what is stated in your owner’s manual with regards to replacing or servicing parts in order to stay up-to-date on the recommended routine maintenance recommendations.

If you have any questions or concerns about the lifecycle of your ignition coils, make sure that you consult with a certified technician or mechanic who knows exactly what they are doing. Working together and taking care of your car’s engine can help make sure that it runs like a champ over time, and that includes ensuring long-lasting performance from your ignition coils!

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