why does my Volvo XC90 make a squealing noise when I brake

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a level surface and engage the parking brake.
• Wear safety goggles and gloves.

2. Remove Wheel

• Loosen the lug nuts slightly before lifting the vehicle.
• Use a jack to lift the vehicle and securely place jack stands.
• Completely remove the lug nuts and take off the wheel.

3. Inspect and Replace Brake Pads

• Inspection:
  • Remove the caliper by unscrewing the mounting bolts using a socket set.
  • Inspect the brake pads for thickness; replace if they are below 3mm.
• Replacement:
  • If necessary, remove the old brake pads from the caliper bracket.
  • Clean the caliper bracket and apply brake grease to the backing of new pads.
  • Install new brake pads into the caliper bracket.

4. Inspect and Resurface or Replace Rotors

• Check the condition of the rotors for any grooves or warping.
• If they are scored, consider having them resurfaced or replace them if they are too thin (less than 0.5 inches).
• Install the rotors back onto the hub.

5. Reassemble Brake Components

• Reattach the caliper over the new brake pads and fasten the mounting bolts to manufacturer specifications (typically around 25-35 ft-lbs).
• Replace the wheel and hand-tighten the lug nuts before lowering the vehicle.
• Lower the vehicle and torque the lug nuts to the manufacturer's specifications (usually 80-100 ft-lbs).