Why Your Ignition Coil Matters — And How It Can Save You Money

May 13, 2025

At Jim Brangham Auto Repair in Cathedral City, CA, we see all kinds of engine problems—and one small part that can cause big trouble is the ignition coil. While it might not sound important, your ignition coil plays a huge role in keeping your car running smoothly.

Engine bay with a long, detached component, likely part of the vehicle's electrical system. | Jim Brangham Auto Repair
What Does the Ignition Coil Do?
Your ignition coil takes the battery’s low voltage and turns it into the high voltage needed to create a spark in your engine. That spark lights the fuel in your engine so your car can run. If your ignition coil isn’t working right, your engine may misfire, run rough, or even stop running altogether.

Signs You Might Have a Bad Ignition Coil
If your car is hesitating, stalling, shaking, or your check engine light is on, it could be due to a faulty ignition coil. You might also notice a drop in fuel efficiency or poor acceleration. These issues can damage other parts of your engine over time if not fixed.

Why Servicing Your Ignition Coil Saves Money
Catching ignition coil problems early can save you from much more expensive repairs down the road. A misfiring engine can damage your catalytic converter, which is one of the most expensive parts on your car. Replacing a coil is far cheaper than replacing the entire exhaust system or engine components that get stressed when the coil fails.

We Use Advanced Testing and Analysis
At Jim Brangham Auto Repair, we use advanced testing equipment to find issues fast. We don’t guess—we test. If your vehicle is showing signs of trouble or the check engine light is on, bring it in. We’ll pinpoint the problem, explain your options, and only recommend repairs you actually need.

Keep Your Car Running Strong
Don’t wait for a small issue to turn into a big one. Regular service and inspections help keep your ignition system healthy and your wallet happy. If you’re in Cathedral City or anywhere in the Coachella Valley, we’re here to help.

Call Jim Brangham Auto Repair at (760) 321-7040 to schedule your next service.
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