Ford Explorer Engines 2017 – Choosing, Maintaining
The 2017 Ford Explorer features three distinct engine options: the 3.5L Ti-VCT V6, the 2.3L EcoBoost four-cylinder, and the high-output 3.5L EcoBoost V6. Understanding the specific maintenance needs and common failure points of these powerplants is essential for ensuring long-term reliability and performance on or off the road.
Choosing the right vehicle often comes down to what is under the hood. If you are looking at a used SUV, understanding the ford explorer engines 2017 options is the first step toward a smart purchase. You want a machine that balances power for towing with the reliability needed for daily commuting.
I promise to break down every technical detail, from common coolant leaks to turbocharger maintenance. By the end of this guide, you will know exactly how to inspect, maintain, and troubleshoot these engines like a seasoned technician. We will cover everything from basic oil choices to the specialized tools required for DIY repairs.
We will explore the naturally aspirated V6, the fuel-efficient 2.3L EcoBoost, and the twin-turbocharged powerhouse found in the Sport trim. Whether you are a weekend warrior or a careful DIYer, this comprehensive breakdown provides the expert insights you need to keep your Explorer running strong.
Understanding the ford explorer engines 2017 Lineup
Ford offered three main configurations for this model year, catering to different driving styles and budgets. Each engine has a unique personality and its own set of mechanical requirements. Selecting the right one depends on whether you value simplicity, fuel economy, or raw towing power.
The 3.5L Ti-VCT V6: The Standard Workhorse
This is the base engine found in many Base and XLT trims. It uses Twin Independent Variable Cam Timing (Ti-VCT) to optimize performance across the RPM range. It produces roughly 290 horsepower and is known for being a relatively straightforward design compared to its turbocharged siblings.
While it lacks the “punch” of the EcoBoost models, it is often favored by DIYers for its easier access to components. However, this engine has one significant “Achilles heel” regarding its internal water pump design. If you own this version, monitoring your coolant levels is a mandatory weekly task.
The 2.3L EcoBoost: Efficiency Meets Torque
This four-cylinder turbocharged engine replaced the older 2.0L version and offers a surprising 280 horsepower. It provides better fuel economy for highway cruising and enough low-end torque to make the heavy Explorer feel nimble. It is a popular choice for families who prioritize gas mileage.
Because it is a direct-injection engine, it is prone to carbon buildup on the intake valves. As a DIYer, you should consider using a high-quality intake valve cleaner every 10,000 miles. This prevents the “stumble” or rough idle often reported by high-mileage owners.
The 3.5L EcoBoost V6: Twin-Turbo Power
Standard on the Sport and Platinum trims, this engine delivers 365 horsepower and 350 lb-ft of torque. It transforms the Explorer into a high-performance SUV capable of impressive acceleration. It uses twin turbochargers to force air into the cylinders, providing power that rivals many V8 engines.
This engine requires the most disciplined maintenance schedule. The extra heat generated by the turbos can break down engine oil quickly. If you plan on towing or off-roading, you must use a high-quality full synthetic oil to protect the turbo bearings from heat soak.
The Critical Internal Water Pump Issue
One of the most discussed topics regarding ford explorer engines 2017 (specifically the 3.5L Ti-VCT and the 3.5L EcoBoost) is the water pump. Unlike most cars where the pump is external, Ford placed this pump behind the timing cover. It is driven directly by the timing chain.
If the internal seal fails, coolant can leak directly into the oil pan. This creates a “milky” sludge that destroys engine bearings in a matter of minutes. As a technician, I always tell owners: if your coolant disappears but you see no leaks on the ground, stop driving immediately.
Check your oil dipstick for a “chocolate milkshake” appearance. Replacing this pump is a labor-intensive job that requires removing the front of the engine. It is a task best suited for an advanced DIYer or a professional shop, as timing alignment is critical during reassembly.
Troubleshooting Common Problems in ford explorer engines 2017
Every engine has its quirks, and the 2017 lineup is no exception. Recognizing the early warning signs can save you thousands of dollars in catastrophic repair bills. Use an OBD-II scanner to check for pending codes even if the “Check Engine” light isn’t on yet.
Turbocharger Lag and Boost Leaks
On EcoBoost models, you might notice a sudden loss of power or a high-pitched whistling sound under acceleration. This often points to a boost leak in the rubber charge pipes or a failing wastegate. Inspect all plastic fittings and hose clamps for cracks or looseness.
If you notice smoke from the exhaust after idling, the turbo seals may be leaking oil. Always allow the engine to idle for 60 seconds after a long drive. This “cool down” period allows oil to circulate through the hot turbos, preventing oil coking.
Misfires and Spark Plug Gaps
The 3.5L EcoBoost is notoriously hard on spark plugs. Because of the high cylinder pressure, the spark plug gap can widen over time, leading to a rhythmic shudder under load. This is often mistaken for a transmission problem by many owners.
Replace your spark plugs every 30,000 to 40,000 miles rather than waiting for the 100,000-mile interval suggested by the manual. Use a torque wrench to ensure they are seated correctly. Proper gapping is essential for preventing ignition coil failure.
Carbon Buildup on Intake Valves
Since the EcoBoost engines are Direct Injection (DI), fuel never washes over the back of the intake valves. Over time, oil vapors from the PCV system bake onto the valves. This restricts airflow and causes a loss of power and fuel economy.
Installing a catch can is a popular mod for the 2017 Explorer. This device traps oil vapors before they reach the intake. It is a simple weekend project that significantly extends the life and cleanliness of your engine’s internal components.
Essential Maintenance Tools for the DIY Mechanic
To work on these engines effectively, you need more than just a basic socket set. The 2017 Explorer uses a mix of metric fasteners and specialized clips. Having the right tools on hand makes the job safer and prevents stripped bolts or broken plastic tabs.
- OBD-II Diagnostic Scanner: Necessary for reading “P-codes” and monitoring live data like fuel trims.
- Magnetic Spark Plug Socket: Prevents dropping and cracking the porcelain on deep-seated plugs.
- Digital Torque Wrench: Critical for the 3.5L EcoBoost intake manifold and spark plugs.
- Coolant Pressure Tester: The best way to find leaks in the complex cooling system of the V6 engines.
- Telescoping Mirror and LED Light: Essential for inspecting the back of the engine for oil or coolant leaks.
Off-Road and Towing Performance Considerations
The ford explorer engines 2017 are capable of light off-roading and significant towing, but they require extra care in these scenarios. Heat is the primary enemy of the 3.5L EcoBoost when pulling a trailer up a mountain pass. Monitor your cylinder head temperature closely.
If you frequently drive on dusty trails, change your engine air filter every 5,000 miles. A clogged filter forces the turbos to work harder, increasing intake temperatures. For off-roaders, ensure your skid plates do not trap excessive heat around the oil pan.
The Power Take-Off (PTU) unit, while technically part of the drivetrain, sits very close to the exhaust on these models. The heat can “cook” the PTU fluid. If you are pushing your engine hard off-road, consider changing your PTU fluid every 30,000 miles to prevent a catastrophic failure of the AWD system.
Maximizing Longevity: The Expert’s Checklist
Reliability isn’t just about luck; it’s about a proactive maintenance strategy. I recommend a “severe service” schedule for all 2017 Explorer owners. This ensures the engine remains healthy well beyond the 100,000-mile mark.
- Oil Changes: Every 5,000 miles using 5W-30 full synthetic (for EcoBoost) or 5W-20 (for Ti-VCT).
- Coolant Flush: Every 3 years or 50,000 miles to protect the internal water pump seals.
- Transmission Fluid: Drain and fill every 40,000 miles, as the transmission works hard to manage EcoBoost torque.
- Throttle Body Cleaning: Clean the butterfly valve every 20,000 miles to maintain a steady idle.
- Belt Inspection: Check the serpentine belt for cracks or fraying every spring and fall.
Frequently Asked Questions About ford explorer engines 2017
Which 2017 Explorer engine is the most reliable?
The 3.5L Ti-VCT V6 is generally considered the most reliable due to its lack of turbochargers. However, the internal water pump remains a known risk. If maintained properly, the 2.3L EcoBoost is also a very durable option for daily driving.
Does the 2017 Ford Explorer have timing belt or chain issues?
All three engines use timing chains, which are designed to last the life of the engine. However, the 3.5L EcoBoost can experience “chain stretch” if oil changes are neglected. This usually manifests as a rattling sound during a cold start.
Can I use 87 octane fuel in the 3.5L EcoBoost?
Yes, the engine will run on 87 octane, but the ECU will retard the timing to prevent knocking. For maximum towing capacity and performance, Ford recommends using 91 octane or higher. You will notice a significant difference in “pep” with premium fuel.
How do I know if my turbochargers are failing?
Common signs include blue smoke from the exhaust, a loud “spooling” or “dentist drill” noise, and a significant drop in fuel economy. If you see an “Underboost” code (P0299) on your scanner, it is time for a professional inspection.
Conclusion: Staying Ahead of the Curve
The ford explorer engines 2017 provide a versatile range of power and efficiency, but they are not “set and forget” machines. Success with this vehicle comes down to vigilant monitoring of fluids and a strict adherence to shortened oil change intervals. By understanding the specific needs of the EcoBoost or the Ti-VCT, you can avoid the most common pitfalls.
If you are a DIYer, don’t be intimidated by the turbochargers or the complex cooling system. Start with the basics: keep the intake clean, use the best fluids available, and listen to what your engine is telling you. A small “tick” or a slight “shudder” is often a cheap fix if caught early, but a disaster if ignored.
Take pride in your maintenance, use the right tools, and your Explorer will reward you with years of adventure. Stay safe on the road, keep your hands greasy, and enjoy the drive!
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