A Guide to Replacing Ignition Coils on the 2010-2019 Kia Forte
If your Forte is running rough or the check engine light is on, an ignition coil could be the culprit.
- A known issue causes premature coil failure in 2017-2018 Forte 2.0L MPI models; check for TSB SA321.
- It is strongly recommended to replace all four ignition coils at the same time, not just the one that failed.
- Diagnose the problem first by reading the check engine codes to confirm which cylinder is misfiring.
- This is a very easy DIY repair that requires only a 10mm socket and can save you over $100 in labor.
Is Your Kia Forte's Ignition Coil Failing?
A bad ignition coil is a common problem that can make your car run poorly. When a coil fails, the cylinder it's responsible for can't ignite fuel properly. This is called a misfire. Ignoring these symptoms can lead to more expensive repairs down the road, like a damaged catalytic converter from unburned fuel. Watch for these clear warning signs.
Common Symptoms of Failure
- Engine Misfires: The engine may sputter, shake, or vibrate, especially when you are stopped at a light (rough idle) or driving at a steady speed.
- Check Engine Light: A failing coil will almost always trigger the check engine light. A flashing light indicates a severe misfire that requires immediate attention. 🎬 Watch: How to diagnose and fix a Kia Forte misfire Common codes include P0300, P0301, P0302, P0303, or P0304.
- Loss of Power: Your Forte may feel sluggish and slow to accelerate because one or more cylinders are not contributing power.
- Worse Fuel Economy: When a cylinder misfires, fuel is wasted. You may notice you're filling up your gas tank more often.
- Trouble Starting: In cases where multiple coils are weak, the engine may be difficult to start.
Known Issues: 2017-2018 Kia Forte Ignition Coil Problems
Owners of 2017-2018 Forte models with the 2.0L MPI engine should be aware of a known issue causing premature ignition coil failure. Kia issued Technical Service Bulletin (TSB) SA321 to address this. The TSB instructs dealers to replace all four ignition coils if the vehicle has stored misfire codes (P030x). Forum discussions confirm that repeated coil failure is common on these specific model years, sometimes occurring every 30,000-40,000 miles. There is no official safety recall for this issue, but it is a well-documented problem.
Choosing the Right Aftermarket Ignition Coil
Since the original equipment (OEM) coils on some Forte model years have known issues, choosing a quality aftermarket part can be a smart move. Aftermarket coils come in different quality tiers. It is highly recommended to replace all four coils at the same time, especially if one has failed or if you own a 2017-2018 model.
Brand Quality Tiers
- Premium Brands (NGK, Delphi, Hitachi, Denso): These companies are often the original suppliers to automakers and are known for high-quality engineering. Brands like NGK and Delphi are trusted choices that meet or exceed OEM specifications and are frequently recommended by mechanics and experienced owners.
- Standard Aftermarket (Standard Ignition, Walker Products): These are reliable, mid-range options that offer a good balance of quality and price. They are a solid choice for a daily driver.
- Economy Brands (DriveWire, True Tech, Skyward): These brands offer the lowest price point. While they can get your car running again, their long-term durability may not match that of premium brands. Some store brands may offer a lifetime warranty, which can be a practical option if you are concerned about repeat failures.
Match the Part to Your Engine
The 2010-2019 Forte was available with several different engines (1.6L, 1.8L, 2.0L, 2.4L). The correct ignition coil depends on your specific engine and model year. Always verify the part number fits your vehicle before ordering. Common OEM part numbers include 27301-2B010, 27300-2E000, and 27300-2E601.
Cost of Replacing Kia Forte Ignition Coils
| Part or Service | Estimated Cost |
|---|---|
| New OEM Ignition Coil (1) | $55 - $150 |
| New Aftermarket Ignition Coil (1) | $22 - $133 |
| Shop Labor | $75 - $150 |
| Total Professional Replacement (1 Aftermarket Coil) | $97 - $283 |
Frequently Asked Questions
Is it hard to replace a Kia Forte ignition coil?
No, this is a beginner-level job. The coils are easily accessible on top of the engine. The process involves removing the engine cover, unplugging a connector, and removing a single 10mm bolt 🎬 Watch: Step-by-step coil replacement for 2010-2013 Forte models for each coil.
Should I replace all ignition coils at once?
Yes, it is highly recommended. Ignition coils are subjected to the same heat and wear. If one has failed, the others are likely near the end of their service life. Replacing them all at once saves you from repeating the repair in the near future.
Should I replace my spark plugs with my ignition coils?
It's a good idea. You are already removing the coils, and the spark plugs are right there. If your spark plugs are near their replacement interval (check your owner's manual), changing them at the same time is efficient and ensures the entire ignition system is fresh.
🎬 See this easy DIY guide for replacing coils and plugsWhat tools do I need to replace the coils?
You only need basic hand tools: a ratchet with a 10mm socket and possibly an extension. A small flat-blade screwdriver can help release the electrical connector clip if it's stubborn.
Helpful Videos
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Technical Specifications
OEM Part Numbers: 27300-2E000 27301-2B010 27300-2E601 UF651
This vehicle uses a coil-on-plug (COP) ignition system with one coil per cylinder. The correct part number varies by engine size (1.6L, 1.8L, 2.0L, 2.4L) and model year. Always verify fitment before purchasing.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Kia Forte:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Kia Forte's Ignition Coil Failing?
- Common Symptoms of Failure
- Known Issues: 2017-2018 Kia Forte Ignition Coil Problems
- Choosing the Right Aftermarket Ignition Coil
- Brand Quality Tiers
- Match the Part to Your Engine
- Cost of Replacing Kia Forte Ignition Coils
- Frequently Asked Questions
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