A Guide to Replacing Fuel Injectors on the 2016-2023 Ford Expedition 3.5L EcoBoost
Understanding fuel injector problems, recalls, and choosing the right replacement parts for your Expedition.
- Check for recalls. A known issue with cracking OEM injectors can cause a fire; check if your VIN is affected by Ford's recall 22S73 or other programs.
- A failed injector is a serious issue. A stuck-open injector can quickly lead to catastrophic engine damage, and a leaking one is a fire hazard.
- Replace injectors as a full set. To ensure balanced engine performance and avoid repeat repairs, all six injectors should be replaced at the same time.
- Choose brands carefully. Stick with high-quality brands like Bosch or Motorcraft; be wary of low-cost remanufactured options that have high failure rates.
Is Your Expedition's Fuel Injector Failing?
A faulty fuel injector in your Expedition can cause noticeable engine problems. Because the 3.5L EcoBoost engine relies on precise fuel delivery, even one bad injector can disrupt performance. Symptoms often start small but can become serious quickly.
Key Failure Symptoms:
- Rough Idle: The engine may shake or feel unbalanced when the vehicle is stopped.
- Engine Misfires: You might feel a stutter or hesitation during acceleration. This will often trigger a flashing Check Engine Light.
- Reduced Power and Poor Fuel Economy: Your Expedition may feel sluggish, and you'll notice you're filling up the gas tank more often.
- Check Engine Light: A failing injector can trigger various diagnostic trouble codes (DTCs), with misfire codes (like P0300, P0301-P0306) being common. 🎬 Watch: Diagnosing rough idle and misfire codes on the 3.5L.
- Fuel Smell: A strong smell of gasoline inside or outside the vehicle is a serious warning sign of a fuel leak.
IMPORTANT: Ford Fuel Injector Recall and Fire Risk
Ford has issued recalls for other models due to a specific and dangerous issue where the fuel injector body can crack. This can cause high-pressure fuel to leak into the engine bay, and if it contacts a hot surface, it can cause an under-hood fire. Ford's recall campaign 22S73 / NHTSA 22V859 addresses this risk for certain vehicles. While initial reports focused on other models, the recall notice describes the exact type of failure that could occur. It is critical to check with a Ford dealer or use the NHTSA website to see if your Expedition's VIN is included in this or any related safety campaign.
Choosing the Right Aftermarket Fuel Injector
When replacing a fuel injector, you have several options. Given the critical nature of this part and the known OEM issues, choosing a quality replacement is essential. It is highly recommended to replace all six injectors at the same time to ensure balanced fuel flow and prevent future failures of the other aging injectors.
Brand Quality Tiers
Tier 1: OEM & Premium Aftermarket (Motorcraft, Bosch)
- Motorcraft: This is the Ford factory (OEM) part. It's a direct replacement and guarantees fitment. However, it is also the part design that has been subject to recalls for cracking. If you choose Motorcraft, ensure it is a newly manufactured part, not old stock.
- Bosch: Bosch is a well-respected manufacturer and is often the original supplier for many Ford parts, including fuel system components. They are known for high-quality engineering and are an excellent alternative to Motorcraft, sometimes at a lower price.
Tier 2: Reputable Aftermarket (Standard Ignition)
- Standard Ignition (SMP): Standard is a major aftermarket manufacturer that produces a wide range of parts. They claim to flow-test their injectors to match OE performance. While many users have success with Standard parts, some reviews mention receiving a defective part out of the box. They are a viable mid-range option but may have a slightly higher chance of issues compared to Bosch or Motorcraft.
Tier 3: Value / High-Risk (GBR Fuel Injection)
- GBR Fuel Injection: This brand primarily offers remanufactured OEM injectors. While the price is tempting, there are numerous online reports and reviews from owners and mechanics who have experienced catastrophic failures with these parts, such as injectors being stuck open right out of the box. A stuck-open injector can flood a cylinder with fuel, washing oil off the cylinder walls and potentially destroying the engine. Using these parts carries a significant risk.
Pro Tip: The 3.5L EcoBoost is a direct injection engine, which can lead to carbon buildup on the intake valves over time. Since replacing the fuel injectors often requires removing the intake manifold, this is the perfect time to have your mechanic inspect and clean the intake valves. This can restore lost performance and efficiency.
🎬 See these troubleshooting tips for EcoBoost misfire issues.Cost to Replace Ford Expedition Fuel Injectors
The cost can vary significantly based on your location and whether you do the work yourself or use a repair shop. The job is complex and requires special care due to the high-pressure fuel system.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Injector (Single) | $39.35 - $152.42 |
| New OEM Injector (Single) | $100 - $180 |
| Shop Labor | $291 - $427 |
| Total Professional Replacement (All 6) | $800 - $1,800+ |
Frequently Asked Questions (FAQ)
Can I replace just one fuel injector?
While you can replace just the one that failed, it is strongly recommended to replace all six at once. The injectors all have the same amount of wear. If one has failed, the others may not be far behind. Replacing them as a set ensures a balanced fuel system and prevents you from having to pay for the same labor-intensive job again in the near future.
Is this a DIY job?
For most home mechanics, this is not a recommended DIY job. The 3.5L EcoBoost's fuel system is complex and operates at extremely high pressure. The intake manifold likely needs to be removed for access. The job requires depressurizing the fuel system correctly and reassembling everything without leaks. An error can lead to a dangerous fuel leak or fire. This job is best left to an experienced technician.
🎬 Watch this step-by-step Expedition fuel injector replacement walkthrough.What happens if I ignore a bad fuel injector?
Ignoring a bad injector can lead to serious problems. A leaking injector can cause a fire. An injector that is stuck open can flood a cylinder with fuel, leading to a condition called "hydrolock" which can bend engine components and cause complete engine failure. It can also wash the lubricating oil off the cylinder walls, causing scoring and permanent damage. A clogged or weak injector will cause poor performance and can damage the catalytic converter over time.
Does using premium fuel prevent injector failure?
Using high-quality, Top Tier gasoline can help keep fuel injectors clean and may contribute to their longevity by preventing deposits. However, it will not prevent a mechanical failure like the cracking issue seen in the Ford recall. It is good practice for the health of your engine, but not a guarantee against injector failure.
Helpful Videos
Technical Specifications
OEM Part Numbers: BL3Z-9F593-B CM-5250
Gasoline Direct Injection (GDI) Injector for 3.5L EcoBoost V6 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 Expedition: