Ford Transit-150 Ignition Coil Guide for 2015-2024 Models
Solve engine misfires and poor performance by choosing the right ignition coils for your 2015-2024 Ford Transit-150.
- A failing ignition coil causes misfires, rough idle, and loss of power, and will trigger the check engine light.
- Driving with a bad coil can damage your catalytic converter due to unburned fuel in the exhaust.
- For V6 models, replacing all six coils and spark plugs at once is recommended to avoid repeated labor costs for accessing the rear cylinders under the intake manifold.
- Denso is a highly recommended aftermarket brand that offers OEM quality, while water intrusion is a known cause of failure on Transit vans.
Is Your Ford Transit Shaking, Stuttering, or Losing Power?
A failing ignition coil is one of the most common reasons for engine problems in the 2015-2024 Ford Transit-150. When a coil goes bad, the cylinder it's responsible for can't fire properly, leading to a noticeable drop in performance. This guide will help you understand the symptoms, choose the right aftermarket replacement parts, and know what to expect from the repair.
Vehicle-Specific Issues for Ford Transit-150
Transit owners should be aware of two common issues. First, the compact engine bay, especially on 3.5L models, can cause high heat that degrades the coils over time, particularly those on the rear cylinders. Second, a known design flaw can allow water from the rain tray to leak into the spark plug wells, causing corrosion and failure of the coils and spark plugs, most often affecting cylinders 4 and 5. 🎬 See how to fix water-damaged coils on cylinders 4 and 5 A failing coil can also cause damage to the expensive Powertrain Control Module (PCM).
Symptoms of a Bad Ignition Coil
A bad coil will almost always trigger the Check Engine Light. Common signs include:
- Engine Misfires: The engine may shake, shudder, or jerk, especially when idling or under load.
- Loss of Power: Your van will feel sluggish and have trouble accelerating.
- Reduced Fuel Economy: The engine has to work harder to compensate for the non-firing cylinder, burning more gas.
- Rough Idle: The engine will sound and feel shaky when stopped. 🎬 Watch: How to diagnose a misfire on your Ford Transit
- Difficulty Starting: The engine may crank but struggle to start, or not start at all if multiple coils have failed.
Choosing the Right Aftermarket Ignition Coil
When replacing ignition coils, you have a choice between OEM and various aftermarket brands. While OEM Motorcraft parts are a guaranteed fit, high-quality aftermarket parts can offer similar performance at a better price.
Here’s a breakdown of available brands:
- OEM-Equivalent (Tier 1): Denso is a top-tier choice. They are a massive original equipment manufacturer and are believed to produce the coils for Ford's own Motorcraft brand. Choosing Denso is the closest you can get to OEM quality, often at a lower cost. Hella is another well-respected German OE supplier with a reputation for quality parts.
- Performance Brands (Tier 2): Brands like Accel and Granatelli market their coils as performance upgrades, sometimes claiming higher voltage output for a stronger spark. These can be a good option if you're looking for a potential performance edge, but reviews are sometimes mixed on whether the gains are noticeable for a daily work van.
- Standard Aftermarket (Tier 3): Brands like Karlyn STI and Prenco fall into the standard replacement category. They are designed to meet original specifications and can be a cost-effective solution for getting your van back on the road.
Pro Tip: Replace in Sets
If one coil fails on a high-mileage Transit, the others are likely not far behind. To save on future labor costs, it is highly recommended to replace all six coils at once, especially since three of them are difficult to access under the intake manifold on V6 models. 🎬 Watch: Step-by-step 3.5L spark plug and coil replacement guide Always replace the spark plugs at the same time as the coils.
Ford Transit-150 Ignition Coil Cost
| Part Type | Estimated Cost (Per Coil) | Notes |
|---|---|---|
| New Aftermarket | $40 - $95 | Price varies by brand. Performance coils are at the higher end. Full sets of 6 can range from $150 to over $500. |
| New OEM (Motorcraft) | $77 - $124 | Purchased from a dealership or official parts retailer. |
| Shop Labor | $30 - $300+ | Around $30-$60 for one easily accessible coil. Labor will be significantly higher ($200-$300+) for a full set on a V6 due to intake manifold removal. |
Frequently Asked Questions (FAQ)
Can I replace an ignition coil myself?
Yes, this is a DIY-friendly job for those with basic mechanical skills. The front coils are very easy to access. However, on the 3.5L and 3.7L V6 engines, the rear three coils are located under the upper intake manifold, which must be removed. This adds significant time and complexity to the job.
Do I need to replace all ignition coils at once?
While you can replace just the one failed coil, it is highly recommended to replace them all, especially on a higher-mileage vehicle. Coils are subjected to the same heat and wear, so when one fails, the others may soon follow. Replacing them all at once, particularly the hard-to-reach rear coils, saves you from repeating a costly labor charge in the near future.
Should I replace my spark plugs with my ignition coils?
Absolutely. Worn spark plugs can put extra strain on the ignition coils, causing them to fail prematurely. Since you or a mechanic will already have access, replacing the spark plugs at the same time is a crucial and cost-effective maintenance step.
What are the OBD-II codes for a bad ignition coil?
A general or random misfire is often code P0300. Cylinder-specific misfire codes range from P0301 (Cylinder 1) to P0306 (Cylinder 6). Codes P0351 through P0356 point directly to a fault in the ignition coil circuit for a specific cylinder.
Helpful Videos
Technical Specifications
OEM Part Numbers: BL3Z-12029-C CY01-18-100Z-02 7T4E-12A375-EE 7T4E-12A375-ED
Coil-on-Plug (COP) design. Voltage and resistance specifications vary by engine (3.5L EcoBoost vs 3.7L V6). Ensure the part is a direct fit for your specific engine.
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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 Transit-150:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Ford Transit Shaking, Stuttering, or Losing Power?
- Vehicle-Specific Issues for Ford Transit-150
- Symptoms of a Bad Ignition Coil
- Choosing the Right Aftermarket Ignition Coil
- Pro Tip: Replace in Sets
- Ford Transit-150 Ignition Coil Cost
- Frequently Asked Questions (FAQ)
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