Melanie Reiff
Updated on Aug 11, 2022
An ignition coil replacement involves disconnecting the coil, replacing the part, adjusting the timing, and road testing it. Engine misfires, weak acceleration, and poor fuel economy are key indicators that you may need this service.
It’s annoying when your vehicle won’t start, but did you know it can also be dangerous? The ignition coil is an important component in your ignition system. When it malfunctions, it can lead to dangerous engine misfires that could cause permanent damage.
If you might need an ignition coil replacement, here’s what you need to know. Check out this short guide with everything you need to know about an ignition coil replacement, compiled by the car insurance super app Jerry.
The exact cost varies between different Gmc models. For example, newer vehicle models are usually made with more expensive materials, so recent or high-end models will cost more, especially if your service requires a part replacement. Use the table below to estimate the cost for your own vehicle.

What is an ignition coil replacement?

The ignition coil is an important part of your ignition system, transforming voltage into high voltage pulses to help fire the spark plugs. A malfunctioning coil needs to be replaced so that the vehicle can start safely. Here are the basic steps for an ignition coil replacement:
  1. Check ignition to ensure it is in the “Off” position.
  2. Disconnect or remove the coil.
  3. Install replacement coil and reattach any electrical connections.
  4. Adjust timing as needed.
  5. Road test to ensure proper functioning.

How to get an ignition coil replacement

You may need an ignition coil replacement if your vehicle is struggling to start or accelerate. This service is fairly straightforward, but it does require special skills. Mechanics may need:
  • Replacement coil
  • Electrical tools
Call a garage and explain any symptoms you’re observing. Tell the mechanic if your vehicle is failing to start. Misfiring, weak acceleration, and loss of power are also worth mentioning. Ask for an ignition coil replacement.

How long will the replacement take?

An ignition coil replacement could take half a day. The service is fairly straightforward, but it does require careful electrical work.

How do I know if I need to get an ignition coil replacement?

If your vehicle is hard to start, you should book an appointment. Engine misfires and poor acceleration are secondary indicators that there is a problem with the ignition coil.
It’s worth pointing out that sometimes multiple components of the ignition system have sustained damage. If you observe any of these signs, bring your vehicle to a mechanic ASAP to see if it needs an ignition cable replacement.

How important is an ignition coil replacement?

This service is very important. It is safe to drive with a malfunctioning ignition coil. However, you will experience poor fuel efficiency and weak acceleration. Misfiring can be dangerous, as it allows unburned fuel to enter and damage the catalytic converter. Eventually, your vehicle may fail to start at all—and then you’d be stuck wherever you parked.

Finding affordable car insurance

While you can’t control the future, you can control how you prepare for it. Car insurance is a smart way to protect yourself and your vehicle from the unknown.
Find an affordable policy with help from Jerry. Quickly review rates from top insurance companies. Explore different coverage options. Sign up for a good deal within the app. It can take just 60 seconds—and the average Jerry user finds an average of $887 in annual savings on their car insurance!
Keep in mind that your location is another factor that determines the final cost of repairs. Areas with higher cost of living will usually have more expensive car repair services, especially if there’s less local competition. Check out the table below for an estimate of what Gmc drivers pay in different cities.
Jerry doesn’t just offer fair price repair estimates for Gmc drivers! Our team of writers has collected everything you need to know for every car. Here’s how much the repair costs for some popular cars:
CarTotal Cost EstimateParts CostLabor CostAverage Dealer PriceEstimated Service Duration
E-250 Econoline
W300 Series
The cost of repairs might vary depending on which Gmc you drive, but there’s an easy way to save money for the services you need! Just download the Jerry app for help lowering your insurance premiums. In less than 45 seconds, Jerry collects all of your information from your existing insurer. Choose from competitive quotes from top insurance companies and Jerry takes care of the rest—securing your new policy and helping you cancel your old one upon request.
With an average annual savings of $887, Jerry can help you free up funds for the repairs your Gmc’s needs.