How to Replace a Wheel Bearing: A Comprehensive Guide

Wheel bearings are essential components that allow your wheels to rotate smoothly and safely. When they fail, it can lead to a number of dangerous and expensive problems. This article will provide a step-by-step guide on how to replace a wheel bearing, as well as important information on when and why they need to be replaced.

Signs and Symptoms of a Bad Wheel Bearing

The most common sign of a bad wheel bearing is a grinding or growling noise that increases in volume and pitch as you drive. Other symptoms include:

• Uneven tire wear: A failing wheel bearing can cause the wheel to wobble, which can lead to uneven tire wear.
• Excessive play in the wheel: If you can visibly see the wheel wobbling or if there is excessive play in the wheel bearing, it is likely time to replace it.
• ABS or traction control problems: A bad wheel bearing can damage the ABS or traction control sensors, leading to problems with these systems.

When to Replace a Wheel Bearing

Wheel bearings typically last for 100,000 to 150,000 miles, but they can fail sooner if they are subjected to excessive wear and tear. Some of the factors that can shorten the life of a wheel bearing include:

• Impact damage: Hitting a pothole or curb with force can damage a wheel bearing.
• Overloading: Exceeding the weight limit of your vehicle can put excessive stress on the wheel bearings.
• Improper installation: A wheel bearing that is not properly installed or torqued can fail prematurely.

How to Replace a Wheel Bearing

Replacing a wheel bearing is a complex and time-consuming task that requires special tools and equipment. If you are not comfortable performing this repair yourself, it is best to take your vehicle to a mechanic. However, if you are confident in your abilities, the following step-by-step guide will help you replace a wheel bearing:

Step 1: Gather your tools and materials

You will need the following tools and materials to replace a wheel bearing:

• Jack and jack stands
• Lug wrench
• Socket wrench
• Torque wrench
• New wheel bearing
• Bearing press (optional)
• Anti-seize compound
• Thread locker

Step 2: Safety first

Before you begin, park your vehicle on a level surface and engage the parking brake. Place wheel chocks behind the wheels opposite the wheel bearing you will be replacing.

Step 3: Remove the wheel

Use a lug wrench to loosen the lug nuts on the wheel that you will be replacing. Do not remove them completely. Use a jack to raise the vehicle and place jack stands under the frame for support. Remove the lug nuts and take off the wheel.

Step 4: Remove the brake caliper

The brake caliper is mounted to the steering knuckle with two bolts. Remove the bolts and carefully lift off the brake caliper. Do not let it hang by the brake hose.

Step 5: Remove the brake rotor

The brake rotor is held in place by two bolts. Remove the bolts and take off the brake rotor.

Step 6: Remove the wheel bearing hub

The wheel bearing hub is mounted to the steering knuckle with four bolts. Remove the bolts and carefully remove the wheel bearing hub.

Step 7: Inspect the wheel bearing

Inspect the old wheel bearing for any signs of wear or damage. If the bearing is damaged, it will need to be replaced.

Step 8: Install the new wheel bearing

Apply a small amount of anti-seize compound to the new wheel bearing. Install the new wheel bearing into the steering knuckle.

Step 9: Install the wheel bearing hub

Install the wheel bearing hub onto the steering knuckle and tighten the four bolts to the manufacturer's specifications.

Step 10: Install the brake rotor

Install the brake rotor onto the wheel bearing hub and tighten the two bolts to the manufacturer's specifications.

Step 11: Install the brake caliper

Install the brake caliper onto the steering knuckle and tighten the two bolts to the manufacturer's specifications.

Step 12: Install the wheel

Install the wheel onto the wheel bearing hub and tighten the lug nuts to the manufacturer's specifications.

Step 13: Lower the vehicle

Lower the vehicle and remove the jack stands.

Tips and Tricks

• Use a bearing press to remove and install the wheel bearing. A bearing press will make the job much easier and safer.
• Apply anti-seize compound to the new wheel bearing. This will help to prevent the bearing from seizing up in the future.
• Tighten the lug nuts to the manufacturer's specifications. Overtightening the lug nuts can damage the wheel bearing.
• Test drive your vehicle after replacing the wheel bearing. Listen for any noises or vibrations that may indicate a problem.

Common Mistakes to Avoid

• Do not attempt to replace a wheel bearing if you are not confident in your abilities. This is a complex and time-consuming repair that requires special tools and equipment.
• Do not use a hammer to remove or install a wheel bearing. This can damage the bearing or the steering knuckle.
• Do not overtighten the lug nuts. This can damage the wheel bearing.
• Do not drive your vehicle if you suspect that a wheel bearing is damaged. This can lead to a serious accident.

FAQs

Q: How much does it cost to replace a wheel bearing?
A: The cost of replacing a wheel bearing varies depending on the make and model of your vehicle, as well as the labor rates in your area. However, you can expect to pay between $200 and $600 for parts and labor.

Q: How long does it take to replace a wheel bearing?
A: Replacing a wheel bearing typically takes between 2 and 4 hours. However, this time can vary depending on the experience of the mechanic and the condition of your vehicle.

Q: Can I replace a wheel bearing myself?
A: Yes, it is possible to replace a wheel bearing yourself. However, this is a complex and time-consuming repair that requires special tools and equipment. If you are not confident in your abilities, it is best to take your vehicle to a mechanic.

Q: What are the signs of a bad wheel bearing?
A: The most common sign of a bad wheel bearing is a grinding or growling noise that increases in volume and pitch as you drive. Other symptoms include uneven tire wear, excessive play in the wheel, and ABS or traction control problems.

Q: How often should I replace my wheel bearings?
A: Wheel bearings typically last for 100,000 to 150,000 miles. However, they can fail sooner if they are subjected to excessive wear and tear.

Call to Action

If you are experiencing any of the symptoms of a bad wheel bearing, it is important to have it replaced as soon as possible. Driving with a bad wheel bearing can lead to serious accidents. Contact your mechanic today to schedule a replacement.