2017 Ford Explorer AWD – Reliability, Maintenance, And Performance
The 2017 Ford Explorer AWD utilizes an intelligent drivetrain designed to balance fuel efficiency with maximum traction across various terrains. This comprehensive guide details the critical maintenance steps, common mechanical pitfalls, and performance upgrades every owner needs to ensure long-term reliability and safety.
Owning a 2017 ford explorer awd means you have a vehicle capable of handling school runs, highway commutes, and light off-road trails with ease. You likely chose this SUV because you need a dependable family hauler that won’t leave you stranded when the weather turns sour.
In this guide, I will show you how to master the Terrain Management System and perform essential maintenance that the factory manual might overlook. We will dive deep into the mechanical heart of your Ford to keep it running smoothly for years to come.
From troubleshooting the notorious Power Transfer Unit (PTU) to selecting the right gear for a weekend camping trip, you will find actionable advice here. Let’s get under the hood and explore what makes your Explorer a formidable all-weather machine.
Understanding the Intelligent 4WD System
The 2017 ford explorer awd does not use a traditional, heavy transfer case found in old-school trucks. Instead, it employs an Intelligent 4WD system that monitors vehicle sensors every 16 milliseconds to predict wheel slip before it happens.
This system primarily sends power to the front wheels during normal cruising to save on fuel. When the onboard computer detects a loss of traction, it engages the rear wheels via an electromagnetic clutch in the rear differential.
One of the standout features is the Terrain Management System (TMS). By turning a simple dial on the center console, you can recalibrate how the engine, transmission, and braking systems behave to match specific ground conditions.
The Four Driving Modes
- Normal: Best for everyday pavement driving, prioritizing front-wheel bias for efficiency.
- Mud/Ruts: Provides more aggressive throttle response and allows for limited wheel spin to clear debris from tire treads.
- Sand: Keeps the transmission in lower gears longer to maintain momentum in soft, high-drag environments.
- Grass/Gravel/Snow: Softens throttle input and encourages early upshifts to prevent wheels from spinning on slippery surfaces.
The Critical 2017 ford explorer awd Maintenance Schedule
To keep your 2017 ford explorer awd in top shape, you must look beyond the standard oil change. The all-wheel-drive components require specific attention that many general repair shops might ignore until a problem arises.
The most important component to watch is the Power Transfer Unit (PTU). This small gearbox sits next to the transmission and sends power to the rear driveshaft, often operating under extreme heat.
While Ford originally claimed the PTU fluid was “lifetime,” many mechanics recommend changing it every 30,000 to 50,000 miles. Neglecting this can lead to the fluid turning into a thick, black sludge that eventually causes gear failure.
Essential Fluid Checks
- PTU Fluid: Use a high-quality 75W-140 synthetic gear oil to withstand high operating temperatures.
- Rear Drive Unit (RDU): Check the rear differential fluid for metal shavings or moisture contamination during every major service.
- Transmission Fluid: The 6F55 or 6F50 transmissions benefit greatly from a “drain and fill” every 60,000 miles to keep shifts crisp.
When performing these tasks, always ensure the vehicle is level on jack stands. Safety is paramount when working under a heavy SUV, so never rely solely on a floor jack while you are underneath the chassis.
Common Issues and Troubleshooting
Every vehicle has its quirks, and the 2017 ford explorer awd is no exception. Being aware of these common problems allows you to catch them early before they result in a massive repair bill at the dealership.
One frequent complaint is a propane-like smell or a burnt oil odor entering the cabin after highway driving. This is often a sign that the PTU fluid is overheating and venting gas, or that a seal has begun to leak onto the exhaust pipe.
If you notice a rhythmic humming or growling noise that changes with vehicle speed, you may be dealing with a failing wheel bearing. These are common on high-mileage Explorers and should be replaced as a complete hub assembly for the best results.
Suspension and Handling Concerns
The rear suspension toe links on this generation of Explorer have been subject to several recalls and service bulletins. If the rear of your vehicle feels “loose” or wanders over bumps, inspect the toe links for excessive play or snapped bolts.
Another area to monitor is the water pump. On the 3.5L Ti-VCT and EcoBoost engines, the water pump is driven by the timing chain internally; a failure can leak coolant directly into the engine oil, which is catastrophic.
Check your oil dipstick regularly for a “milky” appearance. If you see this, stop driving immediately and consult a professional, as this indicates coolant contamination that can destroy your engine bearings in minutes.
Off-Roading and Winter Driving Preparation
While the 2017 ford explorer awd isn’t a dedicated rock crawler, it is highly capable on forest service roads and in deep snow. Proper preparation is the difference between a fun adventure and a call for a tow truck.
Tires are the most critical factor for off-road success. If you plan on frequenting trails, consider upgrading to a set of All-Terrain (A/T) tires with a Three-Peak Mountain Snowflake (3PMSF) rating for superior winter grip.
Always carry a basic recovery kit in the cargo area. This should include a heavy-duty tow strap, a portable tire inflator, and a small shovel to clear snow or mud from around the tires if you get high-centered.
Using Hill Descent Control
Your Explorer is likely equipped with Hill Descent Control, which acts like an off-road cruise control for steep declines. Push the button in the center of the terrain dial to activate it while at low speeds.
The system will automatically apply the brakes to individual wheels to maintain a slow, steady crawl down the hill. This allows you to focus entirely on steering around obstacles without worrying about the vehicle gaining too much momentum.
Remember that the AWD system can overheat if pushed too hard in deep sand or heavy mud for extended periods. If you see a “4WD Temporarily Disabled” message, pull over and let the system cool down for 15 minutes.
DIY Performance and Utility Upgrades
Enhancing your 2017 ford explorer awd can make it more capable for towing or long-distance touring. Many of these upgrades are straightforward enough for a weekend DIYer with basic hand tools.
If you frequently tow a boat or trailer, upgrading to ceramic brake pads and slotted rotors can significantly reduce brake fade. This provides more confidence when descending long mountain grades with a heavy load behind you.
Installing a high-flow dry-media air filter is another simple modification. It can slightly improve throttle response and is a more sustainable choice since these filters can be cleaned and reused rather than thrown away.
Lighting and Visibility
- LED Fog Lights: Replacing the factory halogen bulbs with high-output LEDs improves near-field visibility in dusty or foggy conditions.
- Roof Rack Crossbars: Adding sturdy crossbars allows you to mount a cargo box or kayak carrier, expanding the utility of your SUV.
- Interior Liners: Invest in high-quality, deep-dish floor mats to protect the carpet from the mud and snow you’ll inevitably track inside.
When installing electrical accessories, always use a fused circuit. Tapping directly into the battery without a fuse is a fire hazard and can interfere with the vehicle’s complex electrical architecture.
Frequently Asked Questions About 2017 Ford Explorer AWD
How often should I change the PTU fluid?
While Ford suggests it is a lifetime fluid, most experts recommend changing the PTU fluid every 30,000 miles, especially if you tow or live in a hot climate. This prevents the oil from breaking down into a thick sludge.
Can the 2017 Ford Explorer AWD handle deep snow?
Yes, especially when set to the “Grass/Gravel/Snow” mode. This setting reduces wheel spin and optimizes traction control, but for the best results, you should pair it with dedicated winter tires.
Is the AWD system full-time or part-time?
It is an “on-demand” intelligent system. It primarily powers the front wheels but can send up to 100% of available torque to the rear wheels instantly when the computer detects a need for more traction.
What is the towing capacity of the AWD model?
When properly equipped with the Class III trailer tow package, the 3.5L V6 models can tow up to 5,000 pounds. Always ensure your hitch and trailer wiring are in good condition before hitting the road.
Final Thoughts on Owning a 2017 Ford Explorer AWD
The 2017 ford explorer awd remains a versatile and powerful choice for anyone needing a mix of comfort and capability. By staying ahead of specialized maintenance like PTU fluid changes and monitoring your suspension components, you can avoid the most common headaches associated with this platform.
Whether you are navigating a blizzard or heading out on a cross-country road trip, your Explorer is built to handle the challenge. Take the time to learn the nuances of the Terrain Management System and keep your fluids fresh.
A well-maintained vehicle is a safe vehicle. Keep your tools ready, stay observant of any new noises or smells, and enjoy the confidence that comes with a properly sorted all-wheel-drive SUV. Stay safe and stay comfortable out there!
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