my Volvo XC90 makes a grinding noise when turning what's wrong

Solution

1. Preparation

• Gather tools: jack, jack stands, lug wrench, socket set, and a torque wrench.
• Ensure the vehicle is on a flat surface and turn off the engine.
• Disconnect the battery to avoid any electrical issues while working on the vehicle.

2. Inspect and Replace Power Steering Fluid

• Locate the power steering reservoir.
• Remove the cap and check the fluid level; if low, top it off with the manufacturer-recommended fluid.
• If the fluid is dark or contaminated, drain and replace it:
  • Remove the return line from the reservoir.
  • Allow old fluid to drain into a container.
  • Reconnect the line and fill with new fluid.
  • Start the engine and turn the steering wheel side to side to circulate the fluid.

3. Inspect and Replace Damaged Suspension Components

• Raise the front of the vehicle using a jack and secure with jack stands.
• Remove the front wheels using the lug wrench.
• Inspect control arms, bushings, and tie rod ends for wear:
  • Replace any damaged components with OEM parts.
  • Use a torque wrench to tighten new components to manufacturer specifications.

4. Check and Replace Wheel Bearings

• With the wheel removed, grasp the hub and check for excessive play:
  • If play is detected, remove the brake caliper and rotor.
  • Use a socket set to remove the hub assembly.
  • Inspect the bearing for damage:
    • Replace if necessary, ensuring to pack new bearings with grease before installation.
    • Reassemble in reverse order, torquing bolts to specifications.

5. Verify Brake Components

• Inspect brake pads and rotors for uneven wear or damage.
• Replace any worn pads or rotors, ensuring they are properly aligned and torqued.