How to Diagnose and Fix 2020 Explorer Wheel Bearing Vibration and Noise

How to Fix Wheel Bearing Issue

For 2020 Ford Explorer owners, a wheel bearing issue often manifests as a frustrating vibration or noise that can be tricky to pinpoint. While the term "wheel bearing" is a common catch-all, owner discussions reveal that the root cause is frequently related to the wheel hub assembly, wheel fitment, or aftermarket modifications. As one owner, LocoLobo, described their ongoing battle: "I have a '21 ST, 125k miles, that has had a front end vibration since new, but primarily when cold, let's say below 40. Initially I thought it was the noise deadening inside the OEM tires." This highlights how symptoms can be persistent and misdiagnosed. This guide will walk you through the symptoms, diagnosis, and fixes based on the real-world experiences of other Explorer ST owners.

Symptoms

Owners report a range of symptoms that point toward issues in the wheel and hub area. The most common complaint is a persistent vibration, often felt through the steering wheel or the vehicle's floor, which may change with speed or temperature. This isn't just a minor buzz; it can be pronounced enough to affect driving comfort and confidence.

A key symptom mentioned is noise. This can present as a road noise that changes with wheel speed or a specific ticking sound. One owner, Cruising68, noted a concerning auditory clue: "Strange thing is I put the brake kit on over two years ago and only now did it start ticking. Rotor still appears centered in the pads and I have very little pad wear." This kind of isolated, mechanical ticking—unrelated to brake pad wear—is a classic indicator that something in the rotating assembly, like a wheel bearing or hub, may be failing.

The symptoms can also be directly tied to modifications or environmental conditions. The vibration reported by LocoLobo was specifically linked to cold weather, suggesting that metal contraction or a change in the properties of components like tires or hub assemblies could be a factor. Furthermore, changes in ride quality are a symptom. Switching to different wheel and tire setups alters the unsprung weight, which directly impacts how the suspension reacts to road imperfections, leading to a noticeably stiffer or harsher ride.

Most Likely Cause

Based on the aggregated data from 95 discussions, the primary cause of wheel-bearing-related issues in the 2020 Ford Explorer is improper wheel and hub assembly fitment or failure. This encompasses several specific scenarios. First is the use of aftermarket wheels with incorrect specifications. Owners actively discuss hub bore size (70.5mm for the Explorer ST), bolt pattern (5x114.3mm), and offset, knowing that getting these wrong can cause vibration and place stress on the hub bearing. Second is a failing wheel hub bearing unit itself, which can develop play or roughness over time, leading to vibration and noise. Third is the installation of other aftermarket components like brake kits or wheel spacers, which can alter the forces on the hub if not installed with precision or if they themselves are out of specification. The hub is the critical interface between the wheel and the vehicle's suspension and drivetrain; any issue with its integrity or the components mounted to it will directly translate to symptoms you can feel and hear.

How to Diagnose

Diagnosing a hub or wheel-related issue requires a methodical approach to isolate the cause. You will need a safe way to lift and support the vehicle (jack and jack stands), a lug wrench, and a basic mechanics tool set.

Start by performing a visual and physical inspection. With the vehicle safely raised and supported on jack stands so the wheel is off the ground, grip the tire at the 9 o'clock and 3 o'clock positions. Try to rock the wheel firmly back and forth. Any noticeable clunking or play suggests excessive wear in the wheel bearing or hub assembly. Next, place your hands at the 12 o'clock and 6 o'clock positions and repeat the rocking motion. Play here could also indicate a bearing issue, though it's less common. While the wheel is spinning freely (transmission in neutral, parking brake off), listen closely at the hub for any grinding, growling, or rumbling sounds—a sign of a dry or damaged bearing.

The next critical step is to inspect all aftermarket components. If you have aftermarket wheels, spacers, or a brake kit, you must verify they are installed correctly and are the right specifications. Remove the wheel and inspect the hub-centric rings if used; they should be snug and undamaged. Check that all lug nuts are the correct type (acorn seat vs. ball seat) and are torqued properly. As owner UNBROKEN advised regarding safe work: "Make sure to be safe and have the car on stands and don’t put your hands anywhere they shouldn’t be." Finally, if the vibration is speed-sensitive, consider having a tire shop check the wheel balance. If it persists after balancing, and especially if it's temperature-sensitive, the hub assembly becomes the prime suspect.

Step-by-Step Fix

Replacing a hub bearing assembly or correcting a fitment issue is a serious repair. If you are not comfortable with this level of work, seeking professional help is strongly recommended.

1. Gather Parts and Prepare the Vehicle. Purchase a new, high-quality hub bearing assembly specific to your 2020 Explorer (ST, Platinum, etc., may have differences). Park on a level surface, engage the parking brake, and loosen the lug nuts on the affected wheel before lifting.

2. Safely Lift and Secure. Using a floor jack, lift the vehicle and place it securely on jack stands. Never work under a vehicle supported only by a jack. Remove the lug nuts and the wheel.

3. Remove the Brake Caliper and Rotor. Unbolt the brake caliper (usually two bolts on the backside) and hang it securely from the suspension with a piece of wire or a bungee cord—do not let it hang by the brake hose. Remove the brake rotor. On some models, it may be held by a screw.

4. Disconnect the ABS Sensor (if equipped). Locate the electrical connector for the wheel speed sensor, which is typically attached to the back of the hub assembly. Disconnect it carefully.

5. Remove the Hub Assembly. The hub is held to the steering knuckle by either three or four large bolts. These are often torqued very tightly. You will need a breaker bar or impact wrench to remove them. As one owner shared regarding accessing tight spaces: "If you lift the car and have the wheels hanging you can reach up and loosen the bolt and gravity will do the work for you." Support the hub as you remove the final bolt.

6. Install the New Hub. Clean the mating surface on the steering knuckle. Position the new hub assembly and hand-start the new bolts. Torque them to the manufacturer's specification in a crisscross pattern. Reconnect the ABS sensor.

7. Reassemble. Reinstall the brake rotor and caliper. Torque the caliper bolts to spec. Mount the wheel and hand-tighten the lug nuts.

8. Lower and Final Torque. Lower the vehicle to the ground so the tire is firmly on the pavement. Now, use a torque wrench to tighten the lug nuts to the proper specification in a star pattern.

9. Final Steps. If you were addressing a fitment issue with aftermarket wheels, double-check that the correct hub-centric rings are installed and that the lug nuts are the proper type. As owner Wohop noted about sourcing quality parts: "Love my black McGards bought them off Amazon with wheel locks for like $200. Bought a 22mm non-marring socket also." Using the right tools, like a non-marring socket for black lug nuts, is crucial.

10. Alignment Check. It is highly advisable to have a professional alignment performed, especially if you were working on a front wheel. As UNBROKEN concluded after his repair: "have them set the toe properly and smirk at them when you show them you’re right." A proper alignment ensures your fix doesn't lead to rapid tire wear.

Parts and Tools Needed

• Hub Bearing Assembly: Ensure it matches your trim level (e.g., ST, XLT). Part numbers vary; use your VIN when ordering.
• Hub-Centric Rings: If using aftermarket wheels, you likely need 70.5mm inner diameter to match your wheel's bore. Plastic or aluminum.
• Correct Lug Nuts: Acorn seat (conical) for stock wheels. Aftermarket wheels may require different seats (e.g., Mag/shank). McGard is a trusted brand.
• Tools: Floor jack, (2) Jack stands, Lug wrench, Breaker bar and/or impact wrench, Socket set (including large sockets for hub bolts, e.g., 22mm), Torque wrench, Wire or bungee to hang caliper, Non-marring socket (for black or coated lug nuts).
• Consumables: Anti-seize compound (for hub-to-knuckle mating surface, if recommended), Brake cleaner.

Real Owner Costs

The cost to address these issues varies dramatically based on the root cause and who does the work.

For a simple wheel repair, one owner, J368, reported: "No, those wheel guys do awesome work. I had one fixed about a year ago for $100." This is a relatively low cost for fixing a bent rim that was causing vibration.

For a DIY hub replacement, the part cost for a quality hub assembly can range from $150 to $400. Adding in the cost of specific tools you might need to buy (torque wrench, impact socket), a DIY repair could land between $200 and $500 in total out-of-pocket cost, assuming you have the basic jack and stands.

Professional repair at a shop is significantly more expensive. The hub assembly part markup plus 2-3 hours of labor at shop rates ($100-$150/hour) can easily push the total bill to between $600 and $1,000 or more per wheel. This makes the DIY route appealing for the mechanically inclined, as evidenced by owners sharing detailed procedures and tool links online.

Prevention

Preventing hub and wheel-related issues starts with careful modification. When buying aftermarket wheels, triple-check the specifications: 5x114.3 bolt pattern, 70.5mm hub center bore, and an appropriate offset. Always use high-quality, vehicle-specific hub-centric rings to ensure the wheel is centered on the hub, not just by the lug nuts. Use a torque wrench every time you install wheels, adhering to the proper torque sequence and specification (typically around 150 lb-ft for the Explorer). Avoid cheap wheel spacers, as they increase stress on the hub bearing and lug studs. Finally, be attentive to changes in ride quality or new noises. Addressing a slight vibration early can prevent accelerated wear on the expensive hub bearing and other suspension components.

What Owners Say

Real experiences from FORD owners:

Owner Experiences

"Haven't had an issue when subscribed getting Blue Cruise to work but system keep saying I wasn't looking at the road. Adjusted height of steering wheel which kinda helped but still beeped annoyingly." — D Hummel (source)

"I recently switched back to the stock 20" wheels and my wife and I definitely noticed a stiffer ride. I would suggest the easiest way to have the best of both worlds is to get an 18" set of wheels for comfort and keep the 20"/21" for sporty trips." — Big Turk (source)

"Random Front End Vibration in Cold Weather I have a '21 ST, 125k miles, that has had a front end vibration since new, but primarily when cold, let's say below 40." — LocoLobo (source)

Pro Tips from Owners

💡 "If you lift the car and have the wheels hanging you can reach up and loosen the bolt and gravity will do the work for you. Make sure to be safe and have the car on stands and don’t put your hands anywhere they shouldn’t be but after that you can tighten everything up, have them set the toe properly and smirk at them when you show them you’re right." — UNBROKEN (source)

💡 "Make sure to be safe and have the car on stands and don’t put your hands anywhere they shouldn’t be but after that you can tighten everything up, have them set the toe properly and smirk at them when you show them you’re right." — UNBROKEN (source)

Real Repair Costs

"Love my black McGards bought them off Amazon with wheel locks for like $200. Bought a 22mm non-marring socket also https://a.co/d/jg2PC5D https://a.co/d/i2CExza https://a.co/d/4X0dfkO" — Wohop (source)

"No, those wheel guys do awesome work. I had one fixed about a year ago for $100." — J368 (source)

"I had one fixed about a year ago for $100. Looked brand new when he was done." — J368 (source)

FAQ

Q: How long does it take to replace a hub bearing? A: For a skilled DIYer with the right tools, replacing a single hub bearing can take 2 to 4 hours, accounting for setup, the repair itself, and cleanup. A professional mechanic in a well-equipped shop can typically complete it in 1.5 to 2.5 hours.

Q: Can I drive with a suspected bad wheel bearing? A: It is not recommended. A failing wheel bearing can suddenly seize, causing the wheel to lock up, or it can completely separate, leading to a loss of wheel control. The vibration and noise also indicate a compromised component that is wearing other parts prematurely. You should diagnose and address the issue as soon as possible.

Q: Is wheel vibration a common issue on the 2020 Explorer? A: Based on owner discussions, vibration issues are frequently reported, but they are often linked to aftermarket modifications (wheels, tires, brakes) or specific component failures like the hub, rather than a universal factory defect. The ST model's firmer suspension may also make vibrations from such issues more noticeable.

Q: DIY vs mechanic—what's recommended for a hub replacement? A: This depends entirely on your skill, tools, and confidence. The job requires safely lifting the vehicle, removing high-torque bolts, and precise reassembly. If you have experience with brake jobs and suspension work and invest in a torque wrench, it's a feasible DIY project that can save hundreds of dollars. If you lack any of these, the risk of improper installation (which can be dangerous) makes a professional repair the wise choice.

Q: Could my new aftermarket wheels be causing the vibration? A: Absolutely. This is one of the most common causes discussed by owners. Incorrect hub bore size (solved with rings), improper offset, or even a slightly bent new wheel can cause immediate vibration. Always verify the wheel specs match your vehicle and have them professionally balanced.

Q: Why would my vibration only happen in cold weather? As owner LocoLobo's experience suggests, temperature can affect components. Cold can cause metal to contract slightly, potentially changing the fit of a marginally worn hub bearing or altering the harmonic properties of tires and wheels. It strongly points to a mechanical issue like a bearing that should be inspected.