2020 Ford Explorer St Problems – Essential Reliability And Repair
The 2020 Ford Explorer ST launched as a high-performance beast, but the first year of the CD6 platform redesign brought several mechanical and software hurdles. From transmission shifts that feel like a “thud” to critical suspension bolt failures, staying ahead of these issues is the key to enjoying your 400-horsepower SUV without constant trips to the dealership.
You bought the ST because you wanted a family hauler that could actually move, but lately, you might be noticing some unrefined behaviors from your rig. It is frustrating when a premium performance vehicle starts showing cracks in its armor, especially when those issues involve the drivetrain or safety systems.
This guide will walk you through the most frequent 2020 ford explorer st problems and provide actionable steps to fix them. We will dive deep into the transmission logic, the infamous rear subframe bolt failure, and the various recalls that every owner needs to track. By the end of this article, you will have a clear roadmap for maintaining your Explorer ST like a pro.
Understanding the Powertrain: 10-Speed Transmission Quirks
The 10R80 10-speed automatic transmission is the heart of the ST’s performance, but it is also a primary source of owner complaints. Many drivers report harsh shifting, particularly between the third, fourth, and fifth gears. This often feels like the car is being rear-ended or a sudden “clunk” when accelerating from a stop.
These issues usually stem from the transmission’s adaptive learning software. The computer tries to optimize shifts based on your driving style, but it can sometimes “learn” bad habits or fail to clear old data. A simple PCM/TCM flash at the dealership often solves the minor stutters, but more persistent issues might point to a hardware fault.
One of the more serious internal issues involves the CDF clutch drum. If the sleeve inside this drum moves, it can block oil passages, leading to erratic shifting and eventually transmission failure. If your ST is slipping between gears or taking too long to engage Drive or Reverse, you need to have a technician check for internal pressure losses before the powertrain warranty expires.
The Infamous “Blue Screen” Backup Camera
Technology is great until it goes dark, which is exactly what happened to thousands of Explorer owners. The 360-degree camera system on the 2020 model is notorious for displaying a blank blue screen or a distorted image when you shift into reverse. This is more than a nuisance; it is a significant safety hazard for a vehicle this size.
Ford issued multiple recalls for this specific problem. The fix usually involves a software update to the Image Processing Module (IPMB), but in some cases, the camera hardware itself requires replacement. If your screen is flickering, check your VIN on the Ford owner portal to see if you have an open recall for the camera system.
For DIYers, checking the wiring harness connections in the liftgate can sometimes resolve intermittent signal loss. Vibrations from daily driving can loosen the LVDS cable, which transmits the video signal. Unplugging, cleaning with electrical contact cleaner, and reseating the plug is a quick first step before heading to the shop.
Chassis and Suspension: The Rear Subframe Bolt Failure
If there is one issue that keeps 2020 Ford Explorer ST owners up at night, it is the rear subframe bolt. The 2020 model originally shipped with a single-bolt mounting design for the rear differential. Under the high torque of the 3.0L EcoBoost engine, this single bolt can snap, causing the differential to drop and potentially damaging the driveshaft.
Ford’s official recall fix for this was largely a software update that automatically engaged the electronic parking brake if the vehicle sensed a roll-away risk. However, this does not actually fix the mechanical weakness of the bolt. For enthusiasts who drive their ST hard or tow frequently, the software patch is often considered insufficient.
The real-world solution many owners turn to is an aftermarket differential brace or a “two-bolt” subframe conversion. This adds a second mounting point to the subframe, distributing the torque load more evenly. If you hear a loud “thump” from the rear during hard acceleration, inspect that rear bolt immediately. A broken bolt can lead to a complete loss of motive power while driving.
Driveability and Driveline Vibrations
Some owners report a persistent driveline vibration that occurs between 50 and 70 mph. This can feel like a tire out of balance, but often remains even after a fresh wheel alignment and balance. In the 2020 Explorer ST, this is frequently traced back to the driveshaft or the half-shafts not being perfectly indexed.
To diagnose this, a technician should use an Electronic Vibration Analyzer (EVA). This tool helps pinpoint whether the vibration frequency matches the engine RPM, the driveshaft speed, or the wheel speed. If the vibration is in the driveshaft, it may need to be rotated 180 degrees on the flange or replaced entirely to correct the imbalance.
Another common culprit for “weird” handling is the AWD system engagement. The Explorer ST uses a rear-biased intelligent AWD system. If the fluid in the transfer case (PTU) becomes degraded, the engagement can feel jerky. While Ford claims this fluid is “lifetime,” experienced mechanics recommend changing it every 30,000 to 50,000 miles to prevent premature wear.
Engine Health: Maintaining the 3.0L Twin-Turbo EcoBoost
The 3.0L EcoBoost is generally a robust engine, but it is sensitive to maintenance. One of the common 2020 ford explorer st problems reported by high-mileage owners is oil consumption or leaks. Specifically, the plastic oil pan used on earlier models was prone to leaking at the seal. Ford eventually transitioned back to a metal pan, which is a common “pro” upgrade for owners tired of oil spots on the driveway.
Carbon buildup on the intake valves is another concern, as this is a gasoline direct injection (GDI) engine. Over time, oil vapors from the PCV system can bake onto the valves, reducing airflow and causing rough idles. Using a high-quality full synthetic oil and an occasional intake tract cleaner can help, but a catch can installation is the enthusiast’s choice to keep those valves clean.
Keep an eye on your coolant levels as well. Some early 2020 models experienced internal coolant leaks from the water pump or the turbocharger cooling lines. If you smell something sweet after a long drive or notice the reservoir is low, do not ignore it. The 3.0L runs high boost pressures, and overheating can lead to warped heads or blown gaskets very quickly.
Brake Squeal and Performance Brake Dust
If your ST is equipped with the High-Performance Brake Pack (the red calipers), you have probably noticed two things: incredible stopping power and an incredible amount of dust. Many owners also complain about a high-pitched brake squeal when coming to a slow stop. This is often considered “normal” for high-friction performance pads, but it can be annoying for a daily driver.
To fix the noise, you can try performing a “bedding” procedure. This involves several controlled high-speed decelerations to transfer a layer of pad material onto the rotor. If the noise persists, switching to a ceramic brake pad can significantly reduce both noise and dust, though you may lose a tiny bit of initial “bite” during aggressive driving.
Ensure that the caliper slide pins are well-lubricated. The 2020 models sometimes left the factory with minimal grease on these pins, leading to uneven pad wear and sticking. A quick DIY service with high-temp brake grease can keep the four-piston front calipers sliding smoothly and prevent the rotors from warping due to excessive heat buildup.
Interior Tech: Sync 3 and Build Quality Issues
The vertical 10.1-inch infotainment screen was a major selling point for the ST, but it has its share of glitches. Users often report Sync 3 freezing, lagging, or failing to connect to Apple CarPlay and Android Auto. Most of these issues are software-related and can be fixed by performing a “Master Reset” in the settings menu or updating the software via Wi-Fi.
Beyond the software, the physical build quality of the 2020 interior has been a point of contention. Common complaints include:
- Rattles in the B-pillar near the seatbelt adjuster.
- Creaking sounds from the panoramic sunroof tracks.
- Loose trim pieces on the center console or door panels.
For the sunroof creaks, cleaning the rubber seals and applying a Krytox lubricant usually silences the noise. For interior rattles, felt tape is your best friend. Popping off a loose trim piece and applying a small strip of felt to the contact points can make the cabin feel much more premium and “solid.”
Recalls and Safety Concerns
The 2020 Explorer was one of the most recalled vehicles in its launch year. Aside from the backup camera and the subframe bolt, there were recalls for faulty seatback mechanisms and potential fuel line leaks. It is imperative that any second-hand buyer confirms all recall work has been performed by an authorized Ford dealer.
One specific safety concern involves the driveshaft disconnecting. This occurs if the rear axle mounting bolt breaks, as mentioned earlier. If the driveshaft disconnects, the vehicle can roll away even when in “Park” if the parking brake is not set. Always use your electronic parking brake when parking on an incline, regardless of whether you think your ST is affected.
Check the brake fluid pressure sensor as well. Some units were prone to leaking, which could result in a short circuit and potentially a fire. While this is rare, it highlights the importance of regular under-hood inspections. Look for any signs of fluid weeping near the master cylinder or electrical connectors that look “wet” or discolored.
Frequently Asked Questions About 2020 ford explorer st problems
Does the 2020 Ford Explorer ST have transmission problems?
Yes, many owners report harsh shifting and “clunking” between gears. This is often due to the 10R80 transmission’s software tuning or a failing CDF clutch drum. Software updates can fix many cases, but hardware failures require a transmission teardown or replacement.
Is there a recall for the 2020 Ford Explorer ST rear bolt?
There is a recall related to the rear subframe bolt, but the official fix is a software update for the parking brake rather than a mechanical bolt replacement. Many owners opt for aftermarket differential braces to permanently solve the structural weakness of the single-bolt design.
Why is my 2020 Explorer ST backup camera screen blue?
The “blue screen” is a common failure caused by a faulty image processing module or a bad camera wiring harness. Ford has issued recalls for this issue, and the fix typically involves a software flash or a hardware replacement of the camera unit itself.
Is the 2020 Ford Explorer ST reliable for long-term ownership?
The 2020 model can be reliable if the major 2020 ford explorer st problems—like the subframe bolt and transmission software—are addressed early. It is a first-year model, so it requires more proactive maintenance than later years. Consistent oil changes and PTU fluid swaps are essential for longevity.
What should I look for when buying a used 2020 Explorer ST?
Check the service history for recall completions, specifically the camera and subframe issues. Listen for clunks during gear shifts and vibrations at highway speeds. Inspect the rear differential area for any signs of bolt stress or aftermarket braces, which may indicate the previous owner addressed the subframe issue.
Final Thoughts for the ST Owner
Owning a 2020 Ford Explorer ST is a rewarding experience if you are prepared for its specific quirks. While the 2020 ford explorer st problems we have discussed can seem daunting, most are well-documented with established fixes. Being a proactive owner means listening to what your vehicle is telling you—whether it is a slight vibration in the steering wheel or a hesitation during a gear change.
For the DIY mechanic, these SUVs are surprisingly accessible. You can handle oil changes, brake pads, and even the differential brace installation with standard tools and a good set of jack stands. Keeping a diagnostic scanner like a Forscan-compatible OBDII adapter handy will also help you read manufacturer-specific codes that generic scanners might miss.
The ST is a pinnacle of American performance SUVs, blending utility with genuine speed. By addressing the weak points in the chassis and staying on top of the transmission’s needs, you can ensure your Explorer remains a reliable partner for road trips, school runs, and weekend adventures. Stay safe, keep your wrenches ready, and enjoy the drive!
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