Here's a general step-by-step guide:
Tools and Materials Needed:
- Jack and jack stands
- Lug wrench
- Socket set
- Flat-head screwdriver
- Pry bar
- Hammer
- Replacement front wheel bearings
- New cotter pins
- Grease
- Safety glasses
- Gloves
Instructions:
Step 1: Prepare your vehicle.
- Park the Sunfire on a level surface and engage the parking brake.
- Loosen the lug nuts on the front wheels, but do not remove them completely.
Step 2: Raise the vehicle.
- Use the jack to lift the front of the vehicle until the front wheels are off the ground.
- Place jack stands under the designated jacking points to support the vehicle securely.
Step 3: Remove the lug nuts and wheel.
- Completely remove the lug nuts and then take off the front wheel.
- Set the wheel aside.
Step 4: Remove the brake caliper and rotor.
- Locate the brake caliper bolts and remove them using a socket set.
- Carefully lift the caliper off the rotor and hang it out of the way using a piece of wire or string.
- Remove the brake rotor by pulling it straight off the wheel hub.
Step 5: Access the wheel bearing.
- Use a flat-head screwdriver to pry off the dust cap on the wheel hub.
- Remove the cotter pin from the spindle using pliers or a set of diagonal cutters.
- Unscrew the spindle nut using a socket wrench.
Step 6: Remove the old bearing.
- Use a pry bar to pry the old bearing out of the wheel hub.
- Be careful not to damage the surrounding surfaces.
Step 7: Install the new bearing.
- Apply a generous amount of grease to the new bearing.
- Press the new bearing into the wheel hub using a hammer and a suitable drift or socket extension.
- Make sure the bearing is seated properly.
Step 8: Reinstall the spindle nut and cotter pin.
- Replace the spindle nut and tighten it by hand.
- Insert a new cotter pin through the spindle nut and bend the ends to secure it.
Step 9: Reinstall the brake rotor and caliper.
- Place the brake rotor back onto the wheel hub.
- Reinstall the brake caliper and secure it with the bolts.
Step 10: Reinstall the wheel and lower the vehicle.
- Place the wheel back onto the wheel hub and reinstall the lug nuts.
- Tighten the lug nuts in a star pattern to evenly distribute the force.
- Lower the vehicle using the jack and remove the jack stands.
Step 11: Test the brakes and drive.
- Test the brakes to ensure they are functioning properly.
- Take the vehicle for a short test drive to ensure the wheel bearings are operating smoothly.
Precautions and Tips:
- Always follow the correct safety procedures when lifting the vehicle.
- Use the appropriate tools and exercise caution when working with the bearings and brake components.
- If you encounter any difficulties or have doubts about your abilities, consult a qualified mechanic or refer to a comprehensive repair manual.
- Proper wheel bearing installation and maintenance are critical for vehicle safety, so it is important to ensure the bearings are replaced correctly.
