Ford Explorer St Years To Avoid – The Essential Buyer’S Guide
Choosing a high-performance SUV requires balancing raw power with long-term reliability to avoid costly shop visits. This guide identifies which specific Ford Explorer ST models are prone to transmission and build quality issues so you can buy with confidence. While the ST offers incredible 400-horsepower thrills, selecting the wrong year could lead to persistent mechanical headaches.
The Ford Explorer ST changed the game for performance SUVs when it debuted for the 2020 model year. It offered a 3.0L EcoBoost V6 engine and a sport-tuned suspension that appealed to both families and enthusiasts. However, every new vehicle platform has its growing pains, and the ST is no exception to this rule.
If you are currently scouring the used market, you likely have one major question: which models should you skip? Finding the right high-performance SUV means knowing the ford explorer st years to avoid before you sign the papers or trade in your current ride. We want to ensure your investment stays on the road and out of the service bay.
In this guide, we will break down the mechanical pitfalls of the early 6th-generation models and highlight the improvements made in later years. Whether you are a DIY mechanic looking for a project or a driver who wants a turn-key beast, this breakdown provides the technical clarity you need. Let’s dive into the specifics of these performance machines.
ford explorer st years to avoid: Why the 2020 Model is a Gamble
The 2020 model year was the inaugural launch of the 6th-generation Explorer and the first-ever ST trim. Historically, the first year of a new vehicle generation is the most problematic because manufacturers are still refining the assembly process. For the Explorer ST, the 2020 model suffered from significant build quality issues and software glitches.
One of the most frequent complaints from 2020 owners involves the 10-speed automatic transmission, known as the 10R80. Many drivers reported harsh shifting, erratic gear hunting, and even total transmission failure at low mileage. While software updates have helped, the physical hardware in early 2020 units remains a point of concern for long-term durability.
Interior electronics were another weak point for the 2020 release. The vertical 10.1-inch infotainment screen was notorious for the “blue screen of death” or freezing during navigation. If you are looking at ford explorer st years to avoid, the 2020 model sits at the top of the list due to the sheer volume of technical service bulletins (TSBs) issued by Ford.
The Infamous Rear Axle Bolt Failure
Perhaps the most serious issue affecting the 2020 and some 2021 models is the rear axle mounting bolt. There have been numerous reports of this bolt shearing off under the torque of the 3.0L EcoBoost engine. If this bolt breaks, the driveshaft can disconnect, leading to a loss of power or the vehicle rolling away while in park.
Ford issued recalls for this issue, but the initial “fix” was often just a software update to automatically apply the electronic parking brake. For performance enthusiasts, this was a band-aid rather than a mechanical solution. When inspecting a 2020 model, always verify if the upgraded subframe or high-strength bolt kit has been installed by a professional.
The 2021 Model Year: Improvements and Residual Issues
By 2021, Ford had addressed several of the “low-hanging fruit” problems from the launch year. The assembly line at the Chicago Assembly Plant had stabilized, leading to better panel gaps and fewer interior rattles. However, the 2021 model is still frequently cited when discussing ford explorer st years to avoid because it didn’t fully escape the transmission gremlins.
The 10R80 transmission in the 2021 ST still exhibited occasional clunky downshifts, particularly when slowing from highway speeds. DIYers should check the transmission fluid level and color immediately upon purchase. This transmission is sensitive to fluid quality, and early degradation can lead to premature wear on the internal clutches.
Another common 2021 issue involves the 360-degree camera system. Owners often reported the screen going blank or showing a distorted image when shifting into reverse. While usually a software issue, it can sometimes require a full camera module replacement, which is a tedious task for a weekend mechanic.
Suspension and Handling Concerns
The ST is designed to handle like a sports car, but the 2021 models sometimes suffered from premature strut leaks. If you are test-driving a 2021, listen for “clunking” sounds when going over speed bumps or taking sharp turns. A leaking strut not only ruins the ride quality but also compromises the safety of your high-speed maneuvers.
We recommend checking the sway bar end links as well. These are relatively inexpensive parts to replace yourself, but they are a common failure point that can make the vehicle feel loose. Ensuring these components are tight will keep your ST feeling planted on the pavement or during light off-road excursions.
Identifying the Best Years: 2022 to 2024
If you want the best experience, the 2022 and 2023 models represent the “sweet spot” for the Explorer ST. By this time, Ford had implemented hardware changes to the transmission valve body to smooth out those aggressive shifts. The 2022 model year also saw a more robust approach to the rear axle bolt issue in production.
The 2023 and 2024 models are generally considered the most reliable choices. Most of the early-generation recalls have been resolved, and the SYNC 4 infotainment system is much more stable than previous iterations. While these newer models carry a higher price tag, the peace of mind they offer makes them worth the investment for most owners.
When you look beyond the ford explorer st years to avoid, you find a vehicle that is genuinely capable and fun. The 2023 models, in particular, benefited from refined engine mapping that improved throttle response. This makes the 415 lb-ft of torque feel even more accessible when you need to merge onto the highway or pass a slow-moving trailer.
Key Benefits of Choosing 2022 or Newer
- Refined Transmission Logic: Smoother shifts in “Normal” mode while retaining the aggressive “Sport” mode snaps.
- Updated Interior Materials: Fewer reports of peeling trim or vibrating door panels.
- Better Thermal Management: Improved cooling for the twin-turbochargers, which is vital if you plan on towing or heavy spirited driving.
- Enhanced Safety Suites: More reliable performance from the Ford Co-Pilot360 driver-assist features.
Common Mechanical Problems to Watch For (All Years)
Regardless of the year you choose, certain components on the Explorer ST require regular monitoring. The 3.0L EcoBoost is a sophisticated engine with two turbos, meaning heat is your biggest enemy. Always use a high-quality synthetic oil and change it every 5,000 miles, even if the manual suggests a longer interval.
The water pump on these engines is driven by the timing chain in some configurations, though the 3.0L in the ST is generally more accessible than the older 3.5L units. Still, keep an eye on your coolant levels. Any unexplained drop in coolant could indicate an internal leak that needs immediate professional attention before it destroys the engine.
Carbon buildup on the intake valves is another reality of direct-injection engines. To prevent this, consider installing a catch can system. This DIY-friendly modification captures oil vapors before they can coat your valves, ensuring your ST maintains its 400-horsepower rating for years to come.
A Quick Checklist for DIY Mechanics
- Check the Intercooler: Look for oil residue in the charge pipes, which can indicate a failing turbo seal.
- Inspect Brake Rotors: The ST is heavy and fast; check for warped rotors that cause steering wheel vibration during braking.
- Scan for Codes: Use an OBD-II scanner to check for “hidden” codes that haven’t triggered a check engine light yet.
- Examine Tire Wear: Uneven wear can point to alignment issues or worn-out control arm bushings.
Frequently Asked Questions About ford explorer st years to avoid
Is the 2020 Ford Explorer ST really that bad?
While not every 2020 model is a “lemon,” it has the highest number of reported issues and recalls. If you buy one, ensure it has a complete service history showing that all major recalls, especially the rear axle bolt and transmission updates, have been performed.
What is the most reliable year for the Explorer ST?
The 2023 and 2024 models are currently considered the most reliable. Ford had several years to refine the CD6 platform and address the software and hardware glitches that plagued the earlier versions of the performance SUV.
Does the Explorer ST have transmission problems?
Yes, specifically in the 2020 and early 2021 models. The 10R80 transmission was known for harsh shifting and “clunking” sounds. Most of these issues can be mitigated with the latest TCM (Transmission Control Module) software flashes provided by Ford dealers.
Should I buy a high-mileage Explorer ST?
Buying a high-mileage ST is risky unless you are comfortable with preventative maintenance. The turbos and transmission are under significant stress in this vehicle. Only proceed if the price is low enough to justify potential repairs like a turbo replacement or suspension overhaul.
Expert Tips for Buying a Used Explorer ST
When you are ready to make a purchase, don’t just rely on the exterior looks. Bring a high-powered flashlight and get under the vehicle. Look for any signs of fluid leaks around the transmission pan and the rear differential. Because the ST is an enthusiast vehicle, some previous owners may have driven it very hard.
Ask the seller if the vehicle has been “tuned.” While aftermarket tunes can unlock massive power, they also put extra strain on the drivetrain components. A tuned vehicle might have a voided powertrain warranty, which is a major factor when navigating the ford explorer st years to avoid. If the ECU has been flashed, make sure the supporting hardware, like a larger intercooler, was also installed.
Finally, always perform a cold start. Listen for any timing chain rattle or excessive smoke from the exhaust. A healthy 3.0L EcoBoost should idle smoothly and quietly. If you hear a high-pitched whine, it could indicate a turbocharger bearing starting to fail. Don’t be afraid to walk away if the mechanical “vibe” isn’t right.
Final Thoughts on Choosing Your Explorer ST
The Ford Explorer ST is a remarkable piece of engineering that brings genuine performance to the three-row SUV segment. By being aware of the ford explorer st years to avoid, you can bypass the frustration of early production flaws and go straight to the best the ST has to offer. Focus your search on 2022 and newer models to get the most refined version of this platform.
Remember that maintenance is the key to longevity for any turbocharged vehicle. Keep your fluids fresh, listen to what the car is telling you, and don’t ignore small rattles before they become big repairs. With the right year and a bit of care, your Explorer ST will provide years of exhilarating drives and family adventures.
Stay safe on the road, keep your wrenches ready, and enjoy the incredible power of your ST!
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