So, you’ve got a rumbling coming from your wheels, and you’re wondering if it’s just a loose lug nut or a sign of a failing wheel bearing. Should I Replace Both Wheel Bearings? Well, it’s a classic dilemma, mate, and the answer isn’t always straightforward. But fear not, we’re here to break down the ins and outs, so you can make the best decision for your trusty chariot.
A failing wheel bearing can manifest in a variety of ways, from a low growl to a spine-chilling screech, and can even lead to some dodgy handling. But before you go diving into the garage, it’s crucial to understand why replacing both bearings, even if only one seems to be giving you trouble, is often the wisest course of action.
We’ll explore the reasons, the factors to consider, and the steps involved in this rather essential automotive procedure.
Signs of a Failing Wheel Bearing: Should I Replace Both Wheel Bearings
A failing wheel bearing can be a serious safety hazard, so it’s important to be aware of the signs and symptoms. If you notice any of these issues, it’s best to have your vehicle inspected by a mechanic as soon as possible.
Noise
A failing wheel bearing will often make a noise, especially when driving. The noise may be a grinding, roaring, or clicking sound, and it may get louder as the bearing wears down. The noise may also change depending on the speed of the vehicle.
Vibration
Another common sign of a failing wheel bearing is vibration. You may feel a vibration in the steering wheel or the floorboard of the vehicle, especially when driving at highway speeds. The vibration may also be accompanied by a rumbling or grinding sound.
Handling Issues
A failing wheel bearing can also affect the handling of your vehicle. You may notice that your vehicle pulls to one side, or that the steering feels loose or wobbly. You may also experience a loss of control, especially at higher speeds.
Why Replacing Both Wheel Bearings is Recommended
While it might seem like replacing just the failing wheel bearing is enough, replacing both at the same time is generally recommended for several reasons. This proactive approach ensures balanced handling, prevents future issues, and can even save you money in the long run.
Cost Comparison
Replacing both wheel bearings at the same time can seem like a more expensive upfront investment. However, it often leads to long-term cost savings. If you only replace one bearing, the other bearing is likely to fail sooner than expected, leading to additional labor costs and downtime for another repair.
The cost of replacing one wheel bearing is often around half the cost of replacing both.
Consider this: if replacing one bearing costs $200, replacing both might cost $350. However, if the other bearing fails in a few months, you’ll need to pay another $200 for its replacement, making the total cost $400. By replacing both initially, you save $50 in the long run.
Factors to Consider When Deciding
Replacing both wheel bearings, even if only one is showing signs of failure, is often recommended. However, there are factors to consider that can influence this decision, such as the vehicle’s age, mileage, and driving conditions. The age and mileage of a vehicle can significantly impact the condition of its wheel bearings. As a vehicle ages and accumulates miles, its components, including wheel bearings, wear down.
This wear can lead to increased friction, noise, and eventual failure.
Impact of Vehicle Age and Mileage, Should i replace both wheel bearings
Older vehicles with high mileage are more likely to have worn-out wheel bearings. This is because the bearings have been subjected to more stress and wear over time. For example, a 10-year-old car with 150,000 miles is more likely to need wheel bearing replacement than a 5-year-old car with 50,000 miles.
The Replacement Process
Replacing wheel bearings is a task that requires some mechanical aptitude and the right tools. While it’s possible to do it yourself, it’s recommended to consult a professional mechanic if you’re unsure about any step. This process will guide you through the steps involved in replacing wheel bearings.
Steps Involved in Replacing Wheel Bearings
Before starting, ensure you have all the necessary tools and safety equipment, including a jack, jack stands, lug wrench, torque wrench, and a suitable workspace.
- Jack Up the Vehicle: Safely lift the vehicle using a jack and place it on jack stands. Ensure the vehicle is stable and secure before proceeding.
- Remove the Wheel: Loosen the lug nuts using a lug wrench and then remove the wheel. Set it aside in a safe location.
- Remove the Brake Caliper: Carefully remove the brake caliper assembly from the rotor, using a wrench or socket to loosen the caliper mounting bolts. Be sure to support the caliper with a wire or chain to prevent it from hanging on the brake line.
- Remove the Rotor: Remove the rotor from the hub by gently tapping it with a hammer or rubber mallet. You may need to use a puller if the rotor is stuck.
- Remove the Old Bearing: Depending on the type of bearing, you may need to use a bearing puller to remove the old bearing from the hub. Be careful not to damage the hub during this process.
- Install the New Bearing: Carefully install the new bearing onto the hub, ensuring it’s properly seated. Use a press or bearing installer if necessary.
- Reassemble the Components: Reinstall the rotor, brake caliper, and wheel, tightening all fasteners to the specified torque values.
- Lower the Vehicle: Lower the vehicle from the jack stands and remove the jack. Ensure the vehicle is securely on the ground before driving away.
Proper Techniques for Tightening the Wheel Bearing
It’s crucial to tighten the wheel bearing to the manufacturer’s specifications to ensure proper operation and prevent premature wear. Using a torque wrench is essential for this step.
- Torque Wrench: A torque wrench is a specialized tool that measures the amount of force applied to a fastener. It’s calibrated to specific torque values, ensuring that fasteners are tightened to the correct specifications.
- Tightening Sequence: Follow the manufacturer’s recommended tightening sequence for the wheel bearing. This sequence ensures that the bearing is evenly tightened and prevents stress on the components.
- Final Tightening: Once the bearing is tightened to the specified torque value, it’s important to give it a final tightening. This ensures that the bearing is securely seated and prevents it from loosening over time.
So, there you have it, the great wheel bearing debate laid bare. Ultimately, the decision of whether to replace one or both bearings is a personal one, influenced by factors like your vehicle’s age, mileage, and your personal risk tolerance. But armed with this knowledge, you can make a more informed choice, ensuring a smoother ride and a longer lifespan for your beloved motor.
FAQ Section
How long does it take to replace a wheel bearing?
The time it takes to replace a wheel bearing can vary depending on the make and model of your car and the complexity of the job. However, a professional mechanic can typically complete the job in a few hours. If you’re a bit of a DIY enthusiast, it might take a bit longer, especially if you’re unfamiliar with the process.
What are the signs of a bad wheel bearing?
A bad wheel bearing can make a variety of noises, including grinding, roaring, clicking, or humming. You may also notice vibration in the steering wheel or a feeling that the car is pulling to one side. If you notice any of these symptoms, it’s best to get your car checked out by a mechanic as soon as possible.
How much does it cost to replace a wheel bearing?
The cost of replacing a wheel bearing can vary depending on the make and model of your car, the type of bearing, and the labor costs in your area. However, you can expect to pay anywhere from a few hundred pounds to a few thousand pounds for the repair. It’s always a good idea to get quotes from several mechanics before making a decision.