2017 Ford Explorer Sport AWD – The Ultimate Performance
The 2017 Ford Explorer Sport AWD represents a peak for the fifth-generation platform, blending a powerful twin-turbo V6 with a sophisticated all-wheel-drive system. This guide provides deep technical insights into maintaining its complex drivetrain, preventing common failures like the internal water pump or PTU degradation, and optimizing it for both street performance and light off-roading.
Owning a high-performance SUV often feels like a balancing act between family utility and the thrill of a 365-horsepower engine. You want the reliability of a daily driver, but you also expect the 2017 ford explorer sport awd to deliver when you step on the gas or hit a snowy trail.
If you have noticed a strange smell after a long drive or feel the transmission shifting a bit harshly, you are not alone. These machines are robust, but they require a specific maintenance rhythm that the owner’s manual doesn’t always emphasize.
In this guide, we will break down the essential services your Explorer needs, from the critical Power Take-Off Unit (PTU) fluid swap to managing the twin-turbo EcoBoost engine. Whether you are a weekend DIYer or a dedicated enthusiast, these steps will ensure your vehicle stays on the road and out of the shop.
Understanding the Heart of the 2017 ford explorer sport awd
The Sport trim is not just an appearance package; it is a mechanical upgrade over the base and XLT models. At its core sits the 3.5L EcoBoost V6, a twin-turbocharged powerhouse that demands high-quality fluids and consistent cooling.
Unlike the naturally aspirated variants, this engine uses gasoline direct injection (GDI), which can lead to carbon buildup on the intake valves over time. This happens because fuel no longer washes over the valves to clean them, potentially causing rough idles or lost fuel economy.
The Intelligent AWD system is the other half of the performance equation. It uses a series of sensors to monitor wheel speed, throttle position, and steering angle to distribute torque before wheel slip even occurs.
The Role of the Terrain Management System
One of the best features of this vehicle is the Terrain Management System (TMS). This dial on the center console allows you to recalibrate the engine mapping, transmission shifts, and AWD bias on the fly.
Switching to “Sand” or “Mud/Ruts” mode changes how the center differential distributes power, often locking in a more aggressive 50/50 split. For the DIY mechanic, understanding these modes helps diagnose electronic glitches versus mechanical hardware failures in the drivetrain.
Maintaining Your 2017 ford explorer sport awd for Longevity
To keep your SUV running at its peak, you must look beyond the standard oil change intervals. While Ford might suggest longer intervals, experienced technicians recommend changing your full synthetic oil every 5,000 miles due to the heat generated by the turbos.
The heat from the turbochargers can break down oil faster than in a standard engine. Using a high-quality Motorcraft filter or a reputable aftermarket brand like Wix ensures that contaminants are trapped before they reach the sensitive turbo bearings.
Additionally, keep a close eye on your coolant levels. The 2017 model year uses an internal water pump driven by the timing chain; if this pump fails, it can leak coolant directly into the oil pan, which is a catastrophic engine event.
Essential Fluid Checks
- Brake Fluid: Should be flushed every 2-3 years to prevent moisture buildup in the ABS module.
- Transmission Fluid: A “drain and fill” every 30,000 to 50,000 miles is much safer than a high-pressure flush.
- Coolant: Use only the specified Orange or Yellow Ford-approved coolant; never mix types.
Regularly checking these fluids allows you to spot changes in color or smell early. Dark, burnt-smelling transmission fluid is a warning sign that the 6F55 transmission is working too hard and needs attention immediately.
Addressing the Infamous PTU Fluid Issue
The Power Take-Off Unit (PTU) is the component that sends power to the rear wheels in the 2017 ford explorer sport awd. Ford originally labeled this fluid as “lifetime,” but real-world experience has proven otherwise.
Because the PTU sits very close to the exhaust manifold, the 18 ounces of gear oil inside can literally cook. Over time, the oil turns into a thick, black sludge that looks like molasses, leading to bearing failure and a very expensive replacement bill.
To prevent this, you should change the PTU fluid every 20,000 to 30,000 miles. Since most 2017 models do not have a drain plug, you will need a fluid extractor to suck the old oil out through the fill hole.
Step-by-Step PTU Fluid Exchange
- Locate the fill plug: It is usually found on the passenger side of the unit, often requiring the removal of a small heat shield.
- Extract the old fluid: Use a thin, flexible tube attached to a vacuum pump to get as much of the old, thick oil out as possible.
- Refill with high-temp gear oil: Use a high-quality 75W-140 full synthetic gear lube, preferably one with high heat resistance.
- Monitor for leaks: Check the seals around the intermediate shaft for any signs of “weeping” or wetness.
Performing this simple task can save you thousands of dollars in drivetrain repairs. If you smell a “propane-like” odor after driving, your PTU fluid is likely already failing and needs an immediate change.
Common Problems and DIY Troubleshooting
Every vehicle has its quirks, and the 2017 Explorer is no different. One common complaint is a shudder or vibration during acceleration, which can often be traced back to worn inner CV joints or imbalanced tires.
Another area to watch is the rear suspension toe links. Ford has issued recalls for these in the past because they can snap under stress, leading to a sudden loss of steering control in the rear.
If you hear a clicking sound while turning at low speeds, inspect your front CV boots. A torn boot allows grease to escape and dirt to enter, which will quickly destroy the constant velocity joint inside.
The Internal Water Pump Warning
As mentioned earlier, the water pump is a major concern. If you notice your coolant reservoir is low but see no leaks on the ground, check your oil dipstick immediately.
If the oil looks like “chocolate milk,” stop driving the vehicle. This indicates the water pump seal has failed, and coolant is mixing with the oil. This requires a professional repair involving the removal of the front timing cover.
Proactive owners often choose to replace the water pump and timing chain as a preventative measure around the 120,000-mile mark. It is a labor-intensive job, but it provides total peace of mind for the next decade of driving.
Upgrading Performance and Handling
If you want to unlock more potential from your 2017 ford explorer sport awd, the aftermarket support is surprisingly strong. The 3.5L EcoBoost responds incredibly well to a mild electronic tune.
A reputable tuner can increase boost pressure and optimize timing, often adding 40-60 horsepower without sacrificing daily drivability. However, always ensure you are using 91 or 93 octane fuel to prevent engine knock under high load.
For handling, consider upgrading the rear sway bar. The stock Sport suspension is firm, but a thicker aftermarket bar can significantly reduce body roll during high-speed cornering, making the SUV feel much more planted.
Recommended Performance Mods
- Cold Air Intake: Helps the turbos breathe better and adds a satisfying “whoosh” sound under acceleration.
- Upgraded Intercooler: Reduces intake air temperatures, which is vital for maintaining power during hot summer months.
- High-Performance Brake Pads: The Sport model is heavy; better pads reduce brake fade during spirited driving or towing.
Always remember that performance mods put extra stress on your drivetrain. If you increase the power, you must be even more diligent with your PTU and transmission fluid changes to handle the added torque.
Off-Road Capability and Terrain Management
While the Sport model is biased toward street performance with its 20-inch wheels and low-profile tires, it is still a capable machine for light off-roading. The Intelligent AWD system is excellent at finding traction in soft sand or snow.
If you plan on taking your Explorer off the pavement, consider downsizing to 18-inch wheels with a meatier All-Terrain tire. This provides more sidewall cushion, protecting your rims from rocks and improving ride quality on washboard roads.
Be mindful of your approach and departure angles. The front air dam on the 2017 model is quite low for aerodynamic efficiency; it can easily scrape or catch on obstacles when navigating steep inclines.
Safety Tips for Off-Roading
Before heading out, always check your spare tire pressure. The Explorer uses a temporary “donut” spare, which is not ideal for rugged trails, so many enthusiasts carry a full-sized spare on a roof rack for longer expeditions.
If you get stuck, use the “Sand” mode to allow for more wheel spin, which helps clear the tire treads. However, if the vehicle is high-centered, do not continue to spin the wheels, as this can overheat the AWD clutch pack in the rear differential.
When in doubt, call a professional recovery service or use traction boards. Overheating the drivetrain components can lead to “AWD Off” warnings on the dashboard, requiring a cool-down period before the system re-engages.
Frequently Asked Questions About 2017 ford explorer sport awd
How often should I change the spark plugs?
For the twin-turbo EcoBoost, it is best to change spark plugs every 30,000 to 45,000 miles. Turbocharged engines are harder on plugs, and a fresh set ensures a strong spark and prevents misfires under boost.
What is the towing capacity of the 2017 Sport?
When properly equipped with the Class III towing package, the Sport AWD can tow up to 5,000 pounds. Always use a weight-distributing hitch for trailers over 2,000 pounds to maintain steering stability.
Why does my Explorer smell like exhaust inside the cabin?
This was a known issue with this generation. It is often caused by unsealed body seams in the rear or issues with the exhaust tips. Check with a Ford dealer to see if the TSB (Technical Service Bulletin) for this issue has been applied to your vehicle.
Can I use regular 87 octane fuel?
Yes, the vehicle will run on 87 octane, but the engine computer will pull back timing to prevent knock, resulting in lower horsepower and torque. For the best performance and engine health, 91 octane or higher is recommended.
Final Thoughts on the 2017 ford explorer sport awd
The 2017 ford explorer sport awd remains one of the most versatile and exciting SUVs in its class. It offers the space of a family hauler with the soul of a performance sedan, provided you stay ahead of its maintenance requirements.
By focusing on the PTU fluid, monitoring the water pump, and choosing high-quality synthetic oils, you can enjoy this vehicle for many years. Whether you are carving through mountain passes or navigating a blizzard, this AWD system is designed to keep you moving safely.
Take the time to learn your vehicle’s sounds and feels. A proactive approach to DIY maintenance not only saves money but also builds a deeper connection with your machine. Stay safe, stay maintained, and enjoy the drive!
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