A Ford Edge Owner's Guide to Direct Ignition Coil Replacement (2012-2023)
Understand why your Ford Edge is misfiring and how to choose the right new aftermarket ignition coil to fix it.
- For V6 engines, a bad coil can destroy the engine computer (PCM); if a P035x code returns after a coil swap, the PCM is likely bad.
- When replacing the rear coils on a V6, it's smart to replace all three at once to avoid paying for the difficult labor again.
- A flashing check engine light is a critical warning. Stop driving to prevent expensive catalytic converter damage.
- Always replace spark plugs when installing new ignition coils to ensure longevity and proper performance.
Is Your Ford Edge Shaking or Running Rough?
Ignition coil failure is a common problem on the 2012-2023 Ford Edge. When a coil goes bad, it can't create the strong spark needed for proper combustion. This causes an engine misfire. You will feel this as a shudder, hesitation, or rough idle. If your check engine light is on, and especially if it's flashing, you should not drive the vehicle. A flashing light signals a severe misfire that can quickly damage your expensive catalytic converter.
A Special Warning for V6 Edge Owners (3.5L, 3.7L)
On the V6 engines, a failing ignition coil can send a voltage spike back to the engine's main computer, the Powertrain Control Module (PCM). This can permanently damage the PCM's internal circuits. If you replace a bad coil and the same misfire code (P0351-P0356) comes back right away, the PCM is likely damaged. 🎬 See how a faulty PCM and melted coil look firsthand. In this situation, you must replace the PCM, all six ignition coils, and all six spark plugs at the same time to prevent the new PCM from being damaged again.
Choosing the Right Aftermarket Ignition Coil
When shopping for new aftermarket coils, you'll find a wide range of prices and brands. While saving money is tempting, coil quality is critical for your Edge's performance and reliability. Here’s a breakdown of the brand tiers available.
Premium Aftermarket (OEM Quality)
These brands are known to be original equipment manufacturers for Ford or other major carmakers. They are engineered to meet or exceed Ford's specifications and are your safest bet for long-term reliability.
- Denso: A top-tier brand often considered an OEM equivalent. Denso is known to manufacture some original coils for Ford and is a highly recommended choice.
- Hella: A reputable German brand that produces a wide range of quality automotive parts, including standard replacement ignition coils.
Performance Aftermarket
These brands claim to offer higher voltage and more spark energy than stock coils, which may provide a slight performance improvement. They are popular with enthusiasts but can be more expensive.
- Granatelli: Claims to offer significantly higher voltage (45,000+ volts) and potential horsepower gains. These are a high-performance option for those looking for an upgrade.
- Accel: Claims to deliver 10-15% more energy than OEM coils. User reviews are mixed, with some reporting good results and others questioning long-term reliability compared to OEM.
Standard Aftermarket
These brands offer a balance of affordability and function. They are a good choice for budget-conscious repairs, but may not have the same longevity as premium brands.
- Karlyn STI: A brand offering standard replacement-level coils.
- Prenco: Provides cost-effective coils that meet basic factory requirements.
Pro Tip: Always replace your spark plugs at the same time you replace your ignition coils. Old spark plugs can put extra strain on new coils, causing them to fail prematurely. This is especially important on higher-mileage vehicles.
Ford Edge Ignition Coil Replacement Cost
The cost depends on the engine and whether you do the job yourself. The 4-cylinder and the front three coils on the V6 are easy to access. The rear three coils on the V6 are much harder, requiring the removal of the intake manifold, which significantly increases labor costs at a shop.
| Item | Estimated Cost |
|---|---|
| Single New Aftermarket Coil | $39.77 - $317.36 |
| Single New OEM (Motorcraft) Coil | $80 - $135 |
| Shop Labor (Single Front Coil) | $50 - $75 |
| Shop Labor (V6 Rear Coils) | $200 - $400+ |
Frequently Asked Questions
How do I know which ignition coil is bad?
When a coil fails, your check engine light will turn on. Use an OBD-II scanner to read the code. A code between P0301 and P0306 tells you which cylinder is misfiring (e.g., P0304 is cylinder 4). A code from P0351 to P0356 points directly to a fault in the coil's circuit. A simple way to confirm a bad coil is to swap the suspected coil with one from a working cylinder. If the misfire code moves to the new cylinder, you've found the bad coil.
🎬 Watch this 10-minute guide to diagnosing your Edge misfire.Should I replace all ignition coils at once?
It's a good idea, especially if your Edge has over 100,000 miles. Coils are exposed to the same heat and wear, so when one fails, others are often not far behind. For V6 engines, it is highly recommended to replace the three rear coils at the same time due to the difficult labor involved. This saves you from paying for the same complex job again in the near future.
Is this a DIY job?
For the 2.0L 4-cylinder engine, yes. The coils are right on top and easy to get to. For V6 engines, replacing the front three coils is also a simple DIY job. However, replacing the rear three coils is an advanced task because the upper intake manifold must be removed. If you are not an experienced DIY mechanic, it's best to leave the rear coils to a professional.
🎬 Watch a complete walkthrough for replacing V6 coils and plugs.Are there any recalls for Ford Edge ignition coils?
No, there are no specific safety recalls from the NHTSA for ignition coil failure on the 2012-2023 Ford Edge. Ford has issued Technical Service Bulletins (TSBs) for older models that instruct dealers on how to diagnose the related PCM damage on V6 engines.
Helpful Videos
Technical Specifications
OEM Part Numbers: DG-511 DG-520 UF553 UF670
Coil-on-plug design. Voltage and internal resistance vary by engine (2.0L, 2.7L, 3.5L, 3.7L). Connector pin count can be 2-pin or 3-pin depending on the specific engine and year.
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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.
- Ford Edge:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Ford Edge Shaking or Running Rough?
- A Special Warning for V6 Edge Owners (3.5L, 3.7L)
- Choosing the Right Aftermarket Ignition Coil
- Premium Aftermarket (OEM Quality)
- Performance Aftermarket
- Standard Aftermarket
- Ford Edge Ignition Coil Replacement Cost
- Frequently Asked Questions
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