Back to all

A Bright Spark (Ignition Coil Replacement)

January 12, 2025

Ever wonder how your vehicle’s engine is able to take the 12-volts from its battery and ramp that up to as high as the tens of thousands of volts it takes to fire its spark plugs? The secret is something called an ignition coil.  Most newer vehicles have an ignition coil at each cylinder, but older ones have a coil that serves all of the spark plugs. 

There are telltale signs that you have an ignition coil problem.  As you might expect, one symptom is it’s hard to start your engine or it won’t start at all.  If your engine is misfiring or not running smoothly or you see the Check Engine light come on, those all could point to an ignition coil failure.

Several things can contribute to ignition coil trouble in addition to normal wear and tear. Moisture and dirt may have gotten inside the coil, plus the heat and vibration of your engine over time can contribute to them going bad.  Bad spark plugs or plug wires can also be a cause.  

While ignition coils can last 100,000 miles/160,000 km, depending on how you drive and in what conditions.  If you start noticing some of the signs and symptoms just described, it’s a good idea to schedule a visit to see us so a technician can diagnose what’s wrong. Driving too long with an engine misfiring can damage your catalytic converter, and that can be expensive to replace.

A technician will thoroughly check your ignition system and determine where the failure is.  If it’s only one coil that’s bad, it may be the only thing that will need replacing.  If your vehicle has a distributor, it may also need to be replaced.  Properly-working ignition coils will help your vehicle operate at its best and help prevent future engine damage.

Mustang Automotive
1600 E State Hwy 152
Mustang, Oklahoma 73064
405-745-4826
http://www.mustangautomotiveinc.com

Need Service?

Request a Quote

More articles from Mustang Automotive

Change Your Wiper Blades Twice Yearly at Mustang Automotive

June 21, 2026

Because 90% of our driving decisions are based on visual information, unobscured vision is paramount. Which brings us to the topic of today's Mustang Automotive article: wiper blades. While this isn't the most exciting automotive subject, it's important. You wouldn't drive at night in Mustang wit... More

Economics of Maintenance for Mustang Auto Owners

June 14, 2026

Buying a new car in Mustang is always a big financial decision. The allure of that new car smell is powerful, to be sure. But what if your current car is still in good shape? How do you decide?People in Mustang who've been used to driving a new car every three to five years may be having second... More

Steer Right in Mustang

June 7, 2026

Virtually all vehicles come with power steering, so many Mustang drivers have never driven a car or truck without it. Power steering assists you when you turn your vehicle steering wheel. Without it, it would be very hard to steer. Now this power assist comes in a couple of forms. In recent year... More