2013 Ford Fusion Rear Wheel Bearing – Replacement: Restore Smooth

ByRobert Lozano

Replacing a faulty 2013 Ford Fusion rear wheel bearing is a critical maintenance task that can significantly improve your vehicle’s safety and driving comfort. This guide provides a detailed, step-by-step walkthrough for DIY mechanics and car owners, ensuring you have the knowledge and confidence to tackle this repair effectively. We’ll cover everything from diagnosis to the final torque specifications.

Experiencing a persistent hum or grinding noise from the rear of your 2013 Ford Fusion can quickly turn a pleasant drive into an annoying ordeal. This common symptom often points directly to a failing rear wheel bearing, a component crucial for your wheel’s smooth rotation and overall vehicle stability. Ignoring these warning signs isn’t just irritating; it can compromise handling and even lead to dangerous situations on the road.

At EngineNeeds, we understand the satisfaction of tackling repairs yourself and the importance of reliable information. This comprehensive guide will walk you through diagnosing, safely replacing, and properly torquing a new rear wheel bearing for your 2013 Ford Fusion, empowering you to restore your ride’s quiet comfort and safety. Let’s dive in and get your Fusion back to its best.

Understanding Your 2013 Ford Fusion Rear Wheel Bearing

The rear wheel bearing in your 2013 Ford Fusion is a sealed unit, often referred to as a hub assembly. It allows the wheel to spin freely while supporting the vehicle’s weight. These bearings are designed to last, but eventually, they wear out due to mileage, impacts, or moisture intrusion.

When a rear wheel bearing starts to fail, it typically manifests with distinct symptoms.

Recognizing these early signs can save you from more extensive damage and a potentially unsafe driving condition.

Common Symptoms of a Failing Rear Wheel Bearing

  • Humming or Growling Noise: This is often the first and most common sign. The noise typically increases with speed and may change pitch when turning.
  • Grinding Sound: A more severe symptom, indicating significant wear or damage within the bearing. This sound can be heard even at lower speeds.
  • Loose Wheel/Play: If you can feel excessive play when wiggling the wheel (with the car safely jacked), the bearing is severely compromised.
  • ABS Light Illumination: The wheel speed sensor, often integrated into the hub assembly, can trigger the Anti-lock Braking System (ABS) light if it’s damaged or failing due to bearing issues.
  • Vibration: You might feel vibrations through the steering wheel or floorboards, especially at higher speeds.

If you notice any of these symptoms, it’s crucial to address them promptly.

A failing bearing can lead to uneven tire wear, brake issues, and in extreme cases, wheel detachment.

Tools and Parts You’ll Need for the Job

Before you begin, gather all necessary tools and parts. Having everything on hand prevents delays and ensures a smooth workflow. This job is certainly within the scope of a dedicated DIYer, but requires attention to detail.

Essential Tools

  • Floor jack and at least two sturdy jack stands
  • Wheel chocks
  • Torque wrench (capable of up to 184 lb-ft)
  • Socket set (13mm, 15mm, 18mm, 30mm or 32mm for the axle nut)
  • Breaker bar
  • Pry bar or large flathead screwdriver
  • Wire brush
  • Penetrating oil (e.g., WD-40, PB Blaster)
  • Rubber mallet or hammer
  • Brake cleaner
  • Gloves and safety glasses
  • C-clamp or brake caliper piston compressor (if replacing pads or rotors)

Required Parts

  • New 2013 Ford Fusion rear wheel bearing (hub assembly) – ensure it’s the correct part for your specific model and drivetrain (FWD/AWD).
  • New axle nut (highly recommended, as they are often one-time use)
  • Optional: New brake pads and rotors (if worn or damaged)
  • Optional: Anti-seize lubricant for bolts

Always source high-quality replacement parts from reputable manufacturers.

A cheap bearing might fail prematurely, leading to repeated work.

Safety First: Prepping Your Ford Fusion

Safety is paramount when working under any vehicle. Never skip these crucial steps. A sturdy setup protects you from serious injury.

Secure the Vehicle

  1. Park on a Level Surface: Ensure your Fusion is on firm, level ground.
  2. Engage Parking Brake: Fully engage the parking brake.
  3. Chock Front Wheels: Place wheel chocks securely under the front wheels to prevent any movement.
  4. Loosen Lug Nuts: While the vehicle is still on the ground, use your breaker bar and appropriate socket to slightly loosen the lug nuts on the wheel you’ll be working on. Don’t remove them yet, just break them free.
  5. Jack Up the Vehicle: Carefully place your floor jack under a strong frame point near the rear wheel. Raise the vehicle until the wheel is off the ground.
  6. Place Jack Stands: Position two sturdy jack stands under appropriate frame points, ensuring they are stable and secure. Slowly lower the vehicle onto the jack stands.
  7. Remove Wheel: Finish unscrewing the lug nuts and carefully remove the wheel, setting it aside safely.
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Double-check that the vehicle is absolutely stable before you begin any work.

Give it a gentle shake to confirm it’s not going to budge.

Step-by-Step: Replacing the 2013 Ford Fusion Rear Wheel Bearing

This section provides detailed instructions for removing the old hub assembly and installing the new one. Take your time and follow each step carefully.

1. Remove Brake Caliper and Rotor

  1. Access Caliper Bolts: Locate the two guide pin bolts on the back of the brake caliper. These are usually 13mm or 15mm.
  2. Remove Caliper: Loosen and remove these bolts. You may need to use a pry bar to gently pry the caliper away from the rotor if it’s stuck.
  3. Support Caliper: Do NOT let the caliper hang by the brake hose. Use a bungee cord or wire to hang it from the coil spring or another sturdy suspension component. This prevents damage to the brake line.
  4. Remove Rotor: With the caliper out of the way, the brake rotor should slide off the wheel studs. If it’s stuck, a few taps with a rubber mallet on the hat of the rotor can help free it.

Inspect your brake pads and rotors while they’re off.

Now is an opportune time to replace them if they are worn.

2. Disconnect ABS Sensor Wire

  1. Locate Sensor: The ABS sensor wire will be connected to the back of the hub assembly. Follow the wire up along the suspension arm.
  2. Unclip Wire: Carefully unclip the wire from any retaining clips.
  3. Disconnect Connector: Locate the electrical connector (usually higher up, away from the immediate work area) and disconnect it. This often involves pressing a tab and pulling apart.

Be gentle with the ABS wire and connector.

Damaging it can lead to an ABS light and further diagnostic work.

3. Remove the Axle Nut

  1. Remove Dust Cap and Cotter Pin: If present, carefully pry off the dust cap from the center of the hub, then remove the cotter pin and castle nut. (Note: Some Fusions might have a one-time use staked axle nut that doesn’t have a cotter pin).
  2. Loosen Axle Nut: Use your breaker bar and the appropriate large socket (likely 30mm or 32mm) to loosen the axle nut. This nut is usually very tight, so significant force may be required.
  3. Remove Axle Nut: Once loosened, fully remove the axle nut. It’s highly recommended to replace this with a new one during reassembly.

A new axle nut is cheap insurance against future issues.

They are designed to deform slightly upon tightening for a secure fit.

4. Remove the Old Hub Assembly

  1. Locate Mounting Bolts: There are typically three or four bolts securing the hub assembly to the knuckle from the backside. These are usually 15mm or 18mm.
  2. Remove Bolts: Use your socket and breaker bar or ratchet to remove these bolts. They can be stubborn due to corrosion. Penetrating oil can help.
  3. Separate Hub: Once the bolts are removed, the hub assembly should be free. It might be seized in place due to rust.
  4. Pry or Tap: Use a pry bar to gently work the hub free from the knuckle. If it’s very stubborn, a few firm taps with a rubber mallet around the hub’s flange can help break it loose. Be careful not to damage the axle shaft.
  5. Slide Off: Carefully slide the old hub assembly off the axle shaft and out of the knuckle.

Clean the mating surface on the knuckle thoroughly with a wire brush.

This ensures the new hub sits flush and prevents future issues.

5. Install the New 2013 Ford Fusion Rear Wheel Bearing

  1. Clean and Lubricate: Clean the axle shaft splines with a wire brush. Apply a thin coat of anti-seize lubricant to the splines and the mating surface on the knuckle.
  2. Install New Hub: Carefully slide the new hub assembly onto the axle shaft and into the knuckle. Ensure the ABS sensor wire is oriented correctly.
  3. Insert Mounting Bolts: Thread the three or four mounting bolts by hand into the new hub assembly from the backside of the knuckle.
  4. Tighten Mounting Bolts: Torque these bolts to the manufacturer’s specification, typically around 66 lb-ft (90 Nm). Always double-check your service manual for exact figures.
  5. Install New Axle Nut: Thread the new axle nut onto the axle shaft by hand.
  6. Tighten Axle Nut: This is a critical step. Torque the axle nut to the manufacturer’s specification. For the 2013 Ford Fusion rear wheel bearing, this is typically around 184 lb-ft (250 Nm). If it’s a staked nut, stake it securely into the axle shaft groove. If it uses a cotter pin, install it once torqued.
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Proper torque is essential for the longevity and safety of the new bearing.

Under- or over-tightening can lead to premature failure.

6. Reassemble Brakes and ABS Sensor

  1. Reinstall Rotor: Slide the brake rotor back onto the wheel studs.
  2. Reinstall Caliper: Carefully position the brake caliper back over the rotor and align it with the guide pin holes.
  3. Insert Caliper Bolts: Reinstall the two guide pin bolts and torque them to specification, usually around 20-25 lb-ft (27-34 Nm).
  4. Reconnect ABS Sensor: Route the ABS sensor wire back along its clips and securely reconnect the electrical connector.

Ensure no brake lines are kinked or twisted during reassembly.

A damaged brake line is a serious safety hazard.

Final Checks and Road Test

Before hitting the road, perform these crucial checks to ensure everything is correctly installed and safe.

Post-Installation Checks

  1. Reinstall Wheel: Mount the wheel back onto the studs and hand-tighten the lug nuts.
  2. Lower Vehicle: Carefully raise the vehicle with the floor jack, remove the jack stands, and fully lower the vehicle to the ground.
  3. Torque Lug Nuts: Using your torque wrench, tighten the lug nuts in a star pattern to the manufacturer’s specification (typically 100 lb-ft or 135 Nm for a 2013 Ford Fusion).
  4. Pump Brakes: Before starting the engine, pump the brake pedal several times until firm pressure is restored. This reseats the caliper pistons.
  5. Check Fluid Levels: Verify brake fluid level is appropriate.

Road Test

  1. Slow and Steady: Drive slowly at first, listening for any unusual noises and checking brake response.
  2. Gradual Speeds: Gradually increase speed, paying attention to any humming, grinding, or vibrations.
  3. ABS Light: If the ABS light was on before, it should turn off after driving a short distance. If it remains on, recheck the ABS sensor connection.

A successful road test confirms your hard work has paid off.

Enjoy the quiet, smooth ride of your Ford Fusion once again.

When to Call a Professional

While replacing a 2013 Ford Fusion rear wheel bearing is a common DIY task, there are times when it’s best to call in a professional. If you encounter severely seized bolts that won’t budge even with a breaker bar, or if you lack the necessary torque wrench or expertise, don’t hesitate to seek help. Similarly, if you damage a brake line or struggle with the axle nut, a certified mechanic has the specialized tools and experience to resolve these issues safely. Your safety, and the integrity of your vehicle, are always the top priority.

Frequently Asked Questions About 2013 Ford Fusion Rear Wheel Bearings

How long does a rear wheel bearing typically last on a 2013 Ford Fusion?

Generally, a rear wheel bearing on a 2013 Ford Fusion is designed to last between 80,000 to 120,000 miles. However, factors like driving conditions, impacts from potholes, and manufacturing defects can cause them to fail sooner.

Can I drive with a bad rear wheel bearing?

It’s not recommended to drive with a bad wheel bearing. While you might get away with it for a short distance, it can lead to further damage to your axle, brake components, and even result in the wheel seizing or detaching, posing a serious safety risk.

Is there a difference between FWD and AWD 2013 Ford Fusion rear wheel bearings?

Yes, there can be differences. The AWD models typically have a different hub assembly designed to accommodate the driveshaft and may have different mounting bolt patterns or ABS sensor configurations. Always ensure you purchase the correct part for your specific drivetrain.

Do I need an alignment after replacing a rear wheel bearing?

Typically, replacing only the rear wheel bearing (hub assembly) does not require a wheel alignment, as it doesn’t directly affect the suspension geometry. However, if other suspension components were disturbed or replaced, or if you notice uneven tire wear, an alignment is a good idea.

What’s the difference between a wheel bearing and a hub assembly?

For modern vehicles like the 2013 Ford Fusion, the “wheel bearing” is often sold as a complete “hub assembly.” This means the bearing, hub, and sometimes the wheel studs and ABS sensor are integrated into one sealed unit, making replacement simpler than pressing out individual bearings.

Tackling your own vehicle repairs, like replacing a 2013 Ford Fusion rear wheel bearing, is a rewarding experience that saves money and builds confidence.

By following these detailed steps, prioritizing safety, and using the right tools, you’ll successfully restore your Fusion’s smooth and quiet ride.

Remember, precise torque values are crucial for longevity and safety, so always consult your vehicle’s service manual or a reliable online resource.

Stay safe on the road, and happy wrenching!

Robert Lozano
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