2017 Ford Explorer Platinum Horsepower – A Deep Dive Into Ecoboost
The 2017 Ford Explorer Platinum features a 3.5L Twin-Turbo EcoBoost V6 engine that generates a commanding 365 horsepower and 350 lb-ft of torque. This guide explores how to maintain that power, troubleshoot performance dips, and optimize your SUV for towing or daily driving.
You bought a Platinum trim because you wanted the perfect intersection of a premium cabin and serious muscle under the hood. It is frustrating when that smooth acceleration starts to feel sluggish or hesitant during highway merges.
Maintaining the 2017 ford explorer platinum horsepower is not just about bragging rights; it is about safety and vehicle longevity. In this article, I will show you exactly how to keep your EcoBoost engine running at peak efficiency using professional-grade maintenance tips.
We will cover everything from the importance of spark plug gaps to managing heat soak in the turbochargers. By the end of this guide, you will have a clear roadmap for preserving the performance of your Ford Explorer.
Understanding the 2017 ford explorer platinum horsepower and Engine Specs
The heart of the 2017 Explorer Platinum is the 3.5-liter EcoBoost V6 engine, a powerhouse that changed how we think about SUV performance. This engine uses twin turbochargers to deliver V8-like power while maintaining the footprint of a smaller six-cylinder unit.
To achieve the advertised 365 horsepower, Ford utilizes direct fuel injection and variable cam timing. This combination allows the engine to breathe better across the entire RPM range, providing instant torque when you step on the gas.
It is important to note that these horsepower figures are often achieved using premium fuel. While the vehicle can run on 87 octane, the engine computer will pull back timing to prevent knock, which slightly reduces your actual output on the road.
The Impact of Twin Turbochargers
Turbochargers work by forcing more air into the combustion chamber, allowing the engine to burn more fuel and create more power. In the Platinum trim, these turbos are relatively small, which means they spool up quickly to eliminate “turbo lag.”
However, turbos generate an immense amount of heat, which can affect your long-term engine health. Proper cooling and lubrication are essential to ensure those turbos keep spinning at over 100,000 RPM without failing prematurely.
Torque vs. Horsepower in the Platinum Trim
While horsepower gets you moving at high speeds, torque is what moves the mass of this 5,000-pound SUV from a standstill. With 350 lb-ft of torque available early in the rev range, the Platinum feels much lighter than it actually is.
This balance makes the Explorer Platinum an excellent choice for towing trailers or carrying a full load of passengers. You rarely feel the engine straining, provided the internal components are clean and well-lubricated.
DIY Maintenance to Protect Your 2017 ford explorer platinum horsepower
If you want to keep your 2017 ford explorer platinum horsepower at factory levels, you cannot skip the small stuff. The EcoBoost engine is high-strung and sensitive to neglected maintenance, especially regarding the ignition system.
Start by checking your spark plugs every 30,000 to 40,000 miles, even if the manual suggests a longer interval. Boosted engines are notorious for “blowing out” the spark if the gap is too wide, leading to a noticeable loss in power.
Use a gap gauge to ensure your plugs are set to exactly.030 inches. This small adjustment ensures a consistent spark, preventing misfires that can sap your acceleration and ruin your fuel economy.
Oil Quality and Turbo Longevity
Turbos are lubricated by the same oil that flows through your engine block. Because they run so hot, they can “cook” cheap conventional oil, leading to carbon deposits known as sludge that block oil feed lines.
Always use a high-quality full synthetic oil that meets Ford’s WSS-M2C946-A specification. Change your oil every 5,000 miles rather than waiting for the dashboard monitor to hit zero, especially if you do a lot of city driving.
Air Filter Efficiency
Your engine is essentially a giant air pump; if it cannot breathe, it cannot produce power. A clogged air filter restricts the turbos, forcing them to work harder to pull in the same amount of oxygen.
Check your air box every time you change the oil. If you live in a dusty area or enjoy light off-roading, consider upgrading to a high-flow dry filter that offers better filtration without sacrificing airflow.
Common Causes of Power Loss in the EcoBoost V6
Even with great maintenance, the 2017 Ford Explorer can run into specific issues that diminish its performance. One of the most common “hidden” power robbers is carbon buildup on the intake valves.
Because the EcoBoost is a direct-injection engine, fuel is sprayed directly into the cylinder rather than over the valves. This means there is no gasoline to “wash” the valves clean, leading to gunk that restricts airflow over time.
You might notice a rough idle or a slight hesitation when you floor the throttle. Using an intake valve cleaner spray every 10,000 miles can help mitigate this, but high-mileage engines may require a professional walnut blasting service.
Identifying Boost Leaks
If your engine sounds like it is whistling or hissing under heavy load, you might have a boost leak. This happens when a rubber charge pipe or a plastic connector cracks, allowing pressurized air to escape before it reaches the engine.
Check all the hose clamps between the turbochargers and the intercooler. If a connection is loose, your 2017 ford explorer platinum horsepower will drop significantly because the engine isn’t getting the air it expects.
Intercooler Condensation Issues
In humid climates, moisture can sometimes build up inside the intercooler. When you suddenly accelerate, this water can be sucked into the engine, causing a temporary stumble or “shudder.”
Ford has issued various software updates to manage this, but it is something to watch for. If your Explorer feels like it is “tripping” over itself during a hard merge on a rainy day, this is likely the culprit.
Maximizing Towing and Off-Road Performance
The 2017 Explorer Platinum is rated to tow up to 5,000 pounds when properly equipped. To utilize that 2017 ford explorer platinum horsepower effectively while towing, you need to manage your transmission heat.
Towing puts a massive load on the 6F55 6-speed automatic transmission. If the transmission fluid gets too hot, the computer will reduce engine power to protect the gears, leaving you struggling on uphill grades.
Consider installing an auxiliary transmission cooler if you plan on towing heavy loads regularly. This keeps the fluid within the optimal temperature range, ensuring your power delivery remains consistent and reliable.
Using Terrain Management Modes
The Platinum comes with an Intelligent 4WD system and a Terrain Management dial. Each setting—Normal, Mud/Ruts, Sand, and Grass/Gravel/Snow—changes how the engine delivers its horsepower to the wheels.
In “Sand” mode, the throttle response is sharpened, and the transmission holds gears longer to keep the turbos in their power band. Knowing which mode to use ensures that you aren’t wasting power through unnecessary wheel spin.
The Power Transfer Unit (PTU) Warning
A common weak point in the Explorer’s drivetrain is the PTU, which sends power to the rear wheels. The fluid in this unit is “lifetime,” but it often breaks down due to heat from the nearby exhaust.
If the PTU fails, your Explorer will revert to front-wheel drive, and you will lose the traction needed to put all that horsepower to the ground. Change the PTU fluid every 30,000 miles to prevent this expensive failure.
Upgrading Your Explorer for Better Throttle Response
If the factory 365 horsepower isn’t enough, there are several safe ways to unlock more performance. The most effective modification is a custom ECU tune, which optimizes the boost pressure and timing maps.
A mild tune can easily bump the 2017 ford explorer platinum horsepower toward the 400 mark. However, be aware that this can void your powertrain warranty and puts additional stress on the cooling system.
For those who want to keep things simple, a “throttle mapper” can improve the feel of the car. These devices don’t add horsepower, but they remove the delay in the electronic gas pedal, making the SUV feel much more responsive.
Upgraded Intercoolers
The stock intercooler is adequate for daily driving, but it quickly becomes heat-soaked during spirited driving or towing. Once the air going into the engine gets too hot, the computer pulls back power to prevent damage.
Installing a larger, front-mounted intercooler (FMIC) allows the turbos to stay cool even under heavy load. This results in more consistent power delivery, especially during the hot summer months when the Explorer usually feels slower.
Exhaust Modifications
The Platinum’s exhaust is designed to be quiet and luxurious, which creates some backpressure. Upgrading to a “cat-back” exhaust system can help the turbos spool faster by allowing exhaust gases to exit more freely.
Look for a system that offers a mellow tone. You don’t want a drone-heavy exhaust that ruins the premium feel of the Platinum cabin while you are cruising on the highway.
Frequently Asked Questions About 2017 ford explorer platinum horsepower
Does the 2017 Explorer Platinum require premium gas?
While it can run on 87 octane, Ford recommends premium fuel (91 or higher) to achieve the full 365 horsepower. Using lower octane fuel may result in slightly reduced performance and fuel economy as the engine adjusts for lower knock resistance.
How can I tell if my turbos are failing?
Common signs of failing turbochargers include excessive blue smoke from the exhaust, a loud whining or “dentist drill” noise, and a significant loss of acceleration. If you see an “Underboost” error code on your OBD-II scanner, have the turbos inspected immediately.
Can the 2017 Explorer Platinum tow a boat?
Yes, with a towing capacity of 5,000 pounds, it can handle most small-to-medium boats and campers. Always ensure you are using a weight-distribution hitch for larger loads to maintain stability and braking performance.
What is the 0-60 mph time for the 2017 Explorer Platinum?
In ideal conditions with premium fuel, the 2017 Explorer Platinum can hit 0-60 mph in approximately 5.8 to 6.0 seconds. This makes it one of the quickest three-row SUVs in its class for that model year.
Is the EcoBoost engine reliable at high mileage?
The 3.5L EcoBoost is generally reliable if maintenance is strictly followed. The key is frequent oil changes and spark plug replacements. Watch for water pump failures, as the pump is internal and can leak coolant into the oil if it fails.
Conclusion: Keeping Your Platinum Powerful
The 2017 ford explorer platinum horsepower is a testament to Ford’s engineering, offering a blend of speed and utility that is hard to beat. By staying on top of your spark plugs, using high-quality synthetic oil, and keeping your intake valves clean, you can enjoy that 365-horsepower rush for years.
Remember that performance is a system, not just a number. Your tires, transmission, and 4WD system all play a role in how that power reaches the pavement. If you ever feel a significant drop in performance, do not wait; use a basic OBD-II scanner to check for codes or consult a certified technician.
Take care of your EcoBoost, and it will take care of you on every mountain pass and highway merge. Stay safe, keep your tools ready, and enjoy the ride!
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